CN112768742A

CN112768742A - Efficient high-performance polar plate formation equipment and process

Info

Publication number: CN112768742A
Application number: CN202011632772.9A
Authority: CN
Inventors: 李锐辉; 杨宪宝
Original assignee: Zhangzhou Huarui Lithium New Energy Technology Co ltd
Current assignee: Zhangzhou Huarui Lithium New Energy Technology Co ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-05-07

Abstract

The invention provides efficient high-performance polar plate formation equipment, which comprises a forming device and an assembling device, wherein the forming device is used for winding a single polar plate and a diaphragm to form a battery cell, and the assembling device is used for assembling the battery cell; the forming device comprises a glue applying device for applying glue to the upper surface of the pole piece, an electrostatic electret device for performing electrostatic electret treatment on each layer of the battery cell, a heating device for heating the positive single piece and the negative single piece, and a winding device for winding the first diaphragm, the negative single piece, the second diaphragm and the positive single piece together to form the battery cell; the forming device has simple structure, reduces the failure rate of machinery, improves the production efficiency, improves the processing stability of the electrostatic electret device, reduces the reject ratio, simultaneously leads the connection between the negative single sheet and the positive single sheet and the diaphragm to be more compact and neat after being wound into the battery core, improves the conductivity, improves the performance of the manufactured battery and prolongs the service life. The invention also provides a high-efficiency and high-performance polar plate formation process.

Description

Efficient high-performance polar plate formation equipment and process

Technical Field

The invention relates to the technical field of battery processing, in particular to efficient and high-performance polar plate formation equipment and process.

Background

The cylindrical battery is a battery with high capacity, long cycle life and wide use environment temperature. The product is applied to solar lamps, lawn lamps, backup energy sources, electric tools, toy models and photovoltaic energy sources.

In the process of manufacturing the electric core, there are the system glue, homogenate, the coating, roll compaction, cut, toast and roll up the process such as, in the winding process to first diaphragm, negative pole monolithic, the transport process of second diaphragm and positive pole monolithic each layer, if the direction of delivery between each layer is different, then the occupation space is great, if the direction of delivery between each layer is the same, then probably too close to and lead to the transmission between each layer to take place to interfere at the in-process of carrying, play pincher trees at the winding process, reduce the yields, it is inseparable enough easily to lead to electrically conductive inefficiency to connect between each layer at the in-process of coiling, and the structure of current winder is complicated, mechanical failure takes place easily and difficult maintenance, be unfavorable for practicing thrift the cost and improve work efficiency.

Accordingly, the present inventors have made extensive studies to solve the above problems and have made the present invention.

Disclosure of Invention

An object of an embodiment of the present invention is to provide an efficient and high-performance electrode plate formation device, so as to solve the problems mentioned in the background art that transmission between layers is interfered due to the fact that the layers are identical and too close to each other in the conveying direction, wrinkles are generated in the winding process, the connection between the layers is not tight enough in the winding process, and thus the electric conduction efficiency is low, and the existing winding machine has a complex structure, is prone to mechanical failure and is not easy to maintain.

The second purpose of the embodiment of the invention is to provide an efficient and high-performance pole plate formation process, by applying hot melt adhesive on a positive pole piece and a negative pole piece, when a first diaphragm, a negative pole single piece, a second diaphragm and a positive pole single piece are wound, the negative pole single piece and the positive pole single piece are heated, so that the connection between the negative pole single piece and the positive pole single piece and the diaphragm in the winding process of the first diaphragm, the negative pole single piece, the second diaphragm and the positive pole single piece is more compact and neat, the conductivity is improved, the performance and the service life of a manufactured battery are improved, the structure of a winding device is simple, the failure rate of machinery is reduced, and the production efficiency is improved.

In order to achieve the purpose, the invention adopts the following technical scheme:

a high-efficiency and high-performance polar plate formation device comprises a forming device for winding a single polar plate and a diaphragm to form a battery cell and an assembling device for assembling the battery cell; the forming device comprises a glue applying device for applying glue to the upper surface of the pole piece, an electrostatic electret device for performing electrostatic electret treatment on each layer of the battery cell, a heating device for heating the positive single piece and the negative single piece, and a winding device for winding the first diaphragm, the negative single piece, the second diaphragm and the positive single piece together to form the battery cell; the winding device comprises a winding part for winding the first diaphragm, the negative single sheet, the second diaphragm and the positive single sheet, an auxiliary part for assisting the winding of the winding part, and a rubberizing part for pasting a stop gum on the wound battery cell.

Further, the winding portion includes a first clamping portion and a second clamping portion that clamp the first separator, the negative electrode single sheet, the second separator, and the positive electrode single sheet, and a first cutting portion that cuts off the first separator, the negative electrode single sheet, the second separator, and the positive electrode single sheet.

Further, the first clamping part comprises a first clamping rod, a second clamping rod and a first opening and closing driving device for driving the first clamping rod and the second clamping rod to open and close; the second clamping part comprises a third clamping rod, a fourth clamping rod and a second opening and closing driving device for driving the third clamping rod and the fourth clamping rod to open and close.

Further, the winding part further comprises a first moving driving device for driving the first clamping part to move, a first telescopic driving device for driving the first clamping part to stretch and contract, a first rotating driving device for driving the first clamping part to rotate, a second moving driving device for driving the second clamping part to move, and a second telescopic driving device for driving the second clamping part to stretch and contract.

Further, the first cutting part comprises a first upper cutter, a first lower cutter and a third opening and closing driving device for driving the upper cutter and the lower cutter to open and close.

Further, the auxiliary portion includes an auxiliary winding member; the auxiliary winding piece comprises a first connecting plate, a second connecting plate and a third connecting plate which are sequentially and adjacently arranged; and a first limiting winding groove is formed on one side of the first connecting plate, a second limiting winding groove is formed on one side of the third connecting plate, and the distance between the first connecting plate and the third connecting plate is smaller than the width dimension of the negative pole single piece.

Further, the first limiting winding groove comprises a first extending section and a first arc-shaped winding section; the second limiting winding groove comprises a second extending section and a second arc-shaped winding section.

Further, the auxiliary part further comprises an auxiliary conveying belt for conveying the auxiliary winding member; the auxiliary winding part is fixedly connected to the auxiliary conveying belt.

Further, the taping part includes a tape supply part that supplies the termination tape roll, a first adsorption part that adsorbs the termination tape roll, and a second cutting part that cuts the termination tape roll.

Further, the first suction part includes a vacuum suction head which sucks the termination tape roll; and an arc-shaped adsorption groove matched with the outer circumferential surface of the battery core is formed on the lower surface of the vacuum adsorption head.

Further, the first adsorption part also comprises a first lifting driving device for driving the vacuum adsorption head to lift.

Further, the tape supply section includes a tape winding roller that winds the termination tape roll, a first guide roller that guides the termination tape roll, and a tape conveying roller that conveys the termination tape roll.

Further, the second cutting part comprises a second upper cutter, a second lower cutter and a fourth opening and closing driving device for driving the second upper cutter and the second lower cutter to open and close.

Further, the tape conveying roller has a first output end for outputting the terminated tape roll, and the second cutting portion is provided at one side of the first output end.

Further, the electrostatic electret device includes a first electrostatic electret generator that performs electrostatic electret processing on the first diaphragm, a second electrostatic electret generator that performs electrostatic electret processing on the negative electrode single sheet, a third electrostatic electret generator that performs electrostatic electret processing on the second diaphragm, and a fourth electrostatic electret generator that performs electrostatic electret processing on the positive electrode single sheet.

Further, the glue applying device comprises a glue applying part for outputting hot melt glue to the pole piece.

Further, the glue applying part comprises a glue applying brush for applying hot melt glue to the upper surface of the pole piece; the width dimension of the sizing brush is equal to the width dimension of the pole piece.

Further, the heating device comprises an upper hot air blower above the first diaphragm and a lower hot air blower below the anode single sheet; the output end of the upper air heater faces the upper surface of the first diaphragm, and the output end of the lower air heater faces the lower surface of the anode single sheet.

Further, the molding device further comprises a first feeding device for supplying the first diaphragm, a second feeding device for supplying the negative electrode single piece, a third feeding device for supplying the second diaphragm, and a fourth feeding device for supplying the positive electrode single piece; the first feeding device, the second feeding device, the third feeding device and the fourth feeding device are sequentially arranged from top to bottom.

Further, the first supply device includes a first guide portion that guides the first diaphragm, and a first transport portion that transports the first diaphragm.

Further, the second feeding device comprises a second guide part for guiding the negative single pieces and a second conveying part for conveying the negative single pieces.

Further, the third supply device includes a third guide portion that guides the second diaphragm, and a third transport portion that transports the second diaphragm.

Further, the fourth feeding device includes a fourth guide portion that guides the individual positive electrode sheets, and a fourth conveying portion that conveys the individual positive electrode sheets.

Furthermore, the forming device also comprises a limiting device for limiting the first diaphragm and the positive single sheet.

Further, the limiting device comprises an upper limiting part for limiting the first diaphragm and a lower limiting part for limiting the anode single piece; the first diaphragm, the negative electrode single piece, the second diaphragm and the positive electrode single piece are positioned between the upper limiting part and the lower limiting part.

Further, the assembling device comprises a first clamping device for clamping and placing the battery cell in the shell and a first conveying device for conveying the shell; the first clamping device is arranged between the first conveying device and the auxiliary conveying belt.

Further, the first clamping device comprises a second adsorption part for adsorbing the battery cell, a third rotation driving device for driving the second adsorption part to rotate, and a third movement driving device for driving the second adsorption part to move along a preset track.

Further, the assembling device also comprises a first welding mechanism for welding the bottom of the shell and the lower gasket together.

Further, the first welding mechanism comprises a second clamping device for clamping the shell and a first welding device for welding the joint of the shell and the lower gasket.

Further, the second clamping device comprises a third adsorption part for adsorbing the shell, a third telescopic driving device for driving the third adsorption part to stretch and retract, and a second lifting driving device for driving the third adsorption part to lift.

Further, the first welding device includes a first welding head, and a fourth movement driving device that drives the first welding head to move along a predetermined trajectory.

Further, the assembling device also comprises a gasket supply device for placing an upper gasket at the top end of the battery core and a rolling groove device for performing rolling groove treatment on the shell.

Further, the gasket supply device includes a grasping portion, a gasket accommodating portion, and a gasket output portion; the gripping part comprises a vacuum gripping head and a telescopic cylinder for driving the vacuum gripping head to stretch and retract; the gasket receiving portion is internally provided with a first receiving cavity for receiving the upper gasket, the gasket output portion comprises a gasket output port for outputting the upper gasket, and the gasket output port is arranged downwards.

Further, the rolling slot device comprises a rolling slot disc, a fourth telescopic driving device for driving the rolling slot disc to stretch and retract, and a fourth rotary driving device for driving the rolling slot disc to rotate; the axis of the rolling groove disc is parallel to the axis of the shell.

Further, the assembling device further comprises a first baking mechanism for baking the shell and the battery core.

Further, the first baking mechanism comprises a first baking device, a second conveying device for conveying the shell and the battery cell into the first baking device, and a third conveying device for outputting the shell and the battery cell in the first baking device; the second conveying device, the first baking device and the third conveying device are sequentially arranged along the conveying direction of the shell.

Further, the second conveying device comprises a bearing plate for bearing the shell, a third clamping device for clamping the shell, a first conveying belt for conveying the bearing plate, and a fourth clamping device for clamping the bearing plate.

Further, the third gripping device includes a fourth suction portion, a fifth movement driving device that drives the fourth suction portion to move along a predetermined trajectory, and a fifth rotation driving device that drives the fifth movement driving device to rotate.

Further, the fourth gripping device includes a fifth suction portion, a sixth movement driving device that drives the fifth suction portion to move along a predetermined trajectory, and a sixth rotation driving device that drives the sixth movement driving device to rotate.

Further, the third conveying device includes a fifth gripping device that grips the carrier tray, and a second conveying belt that conveys the carrier tray.

Further, the fifth gripping device includes a sixth suction section, a seventh movement driving device that drives the sixth suction section to move along a predetermined trajectory, and a seventh rotation driving device that drives the seventh movement driving device to rotate.

Furthermore, the first baking device comprises a first baking part and a first hot air blower, and a plurality of first baking cavities for placing the bearing discs are formed in the first baking part.

Further, the assembling device also comprises a liquid injection mechanism for injecting electrolyte into the shell.

Further, annotate liquid mechanism and include that the sixth clamp that carries out the clamp to the shell in bearing the dish gets the device, carry out the fourth conveyor that carries to the shell to and the priming device of injecting electrolyte in to the shell.

Further, the liquid injection device comprises a seventh adsorption part for adsorbing the shell, an eighth movement driving device for driving the seventh adsorption part to move along a preset track, an electrolyte storage part for containing electrolyte and an electrolyte injection part for outputting the electrolyte; the electrolyte injection part is communicated with the electrolyte storage part.

Further, the sixth gripping device includes an eighth suction portion, a ninth movement driving device that drives the eighth suction portion to move along a predetermined trajectory, and an eighth rotation driving device that drives the ninth movement driving device to rotate.

Further, still include the device of cutting that cuts to the pole piece.

Further, the slitting device comprises a first feeding mechanism for supplying pole pieces, a slitting mechanism for slitting the pole pieces to form pole piece monomers, and a winding mechanism for winding the pole piece monomers.

Further, it includes a plurality of cutting device that form many positive pole monolithic or many negative pole monolithic to cut the mechanism to the pole piece, and is a plurality of cutting device is along the equidistant setting of width direction of pole piece.

Further, the cutting device includes a first cutting portion and a second cutting portion; the axis of the first cutting part and the axis of the second cutting part are obliquely arranged.

Further, the first cutting portion includes a first circular saw blade; the second cutting portion includes a second circular saw blade.

Further, the inclination angle of the axis of the first disc saw blade is 45 degrees; the axis of the second circular saw blade is inclined at an angle of 135 deg.

Furthermore, the cutting device also comprises a first rotary driving device for driving the first circular saw blade to rotate, and a second rotary driving device for driving the second circular saw blade to rotate.

Further, the winding mechanism comprises a tensioning device for tensioning the cut pole pieces and a winding device for winding the cut pole pieces.

Further, the tensioning device comprises a first tensioning portion for tensioning the plurality of negative electrode single pieces or the plurality of positive electrode single pieces.

Further, the first tensioning part includes a first tensioning roller, a second tensioning roller, and a third tensioning roller; first tensioning roller and third tensioning roller and anodal monolithic or the monolithic lower surface roll connection of negative pole, the second tensioning roller rolls with anodal monolithic or the monolithic upper surface roll connection of negative pole, the second tensioning roller is in between first tensioning roller and the third tensioning roller.

Further, the furling device comprises a first furling part and a second furling part.

Further, the first winding part includes a first guide roller and a plurality of first winding trays; the second winding part comprises a second guide roller and a plurality of second winding discs; the second guide roller is positioned below the first guide roller.

Further, the first winding part further comprises a third rotation driving device for driving the plurality of first winding disks to rotate; the second furling part also comprises a fourth rotation driving device which drives the plurality of second furling discs to rotate.

Furthermore, the slitting device also comprises a second baking mechanism for baking the wound anode single sheet and cathode single sheet.

Further, the second toasting mechanism comprises a second toasting portion and a heating element; a second accommodating cavity for accommodating the plurality of first coiling disks and the second coiling disk is formed in the second baking part, and the heating element is arranged in the second accommodating cavity.

Further, still include and carry out the coating device that coats and form the pole piece to the foil.

Further, coating unit is including the system of making of positive pole coating or negative pole coating mechanism, carries out the coating mechanism that coats to the foil, carries out the stoving mechanism of drying to the pole piece to carry out the rolling mechanism that rolls to the pole piece.

Further, the gum making mechanism comprises a first homogenizing device, a second homogenizing device and a third homogenizing device.

Further, the first homogenizing device comprises a first stirring cylinder and a first stirring device; the first stirring device comprises a first stirring shaft, a plurality of first stirring parts connected to the outer circumferential surface of the first stirring shaft, and a fifth rotation driving device for driving the first stirring shaft to rotate; a plurality of first stirring parts are arranged at equal intervals along the axial direction of the first stirring shaft, the first stirring device is arranged in the first stirring cylinder, the axis of the first stirring cylinder is overlapped with the axis of the first stirring shaft, and the output end of the fifth rotation driving device is connected with the first stirring shaft.

Further, the second homogenizing device comprises a second stirring cylinder and a second stirring device; the second stirring device comprises a second stirring shaft, a plurality of second stirring parts connected to the outer circumferential surface of the second stirring shaft, and a sixth rotation driving device for driving the second stirring shaft to rotate; the second stirring parts are arranged at equal intervals along the axial direction of the second stirring shaft, the second stirring device is arranged in the second stirring cylinder, the axis of the second stirring cylinder is overlapped with the axis of the second stirring shaft, and the output end of the sixth rotation driving device is connected with the second stirring shaft.

Further, the third homogenizing device comprises a third stirring cylinder and a third stirring device; the third stirring device comprises a third stirring shaft, a plurality of third stirring parts connected to the outer circumferential surface of the third stirring shaft and a seventh rotation driving device for driving the third stirring shaft to rotate; the third stirring parts are arranged at equal intervals along the axial direction of the third stirring shaft, the third stirring device is arranged in the third stirring cylinder, the axis of the third stirring cylinder is overlapped with the axis of the third stirring shaft, and the output end of the seventh rotation driving device is connected with the third stirring shaft.

Further, the first mixing drum is communicated with a third mixing drum through a first material conveying pipe, and the second mixing drum is communicated with the third mixing drum through a second material conveying pipe.

Further, the coating mechanism comprises a foil conveying device for conveying the foil and a spraying device for spraying the positive coating or the negative coating on the upper surface of the foil.

Further, the foil conveying device comprises a bearing part for bearing the foil roll, a second tensioning part for tensioning the foil, a foil conveying part for conveying the foil, and a pole piece rolling part for rolling the pole piece.

Further, the spraying device comprises a spraying part for outputting the positive coating or the negative coating, and a coating storage part for storing the positive coating or the negative coating; the spraying part is communicated with the paint storage part through a third conveying pipe, and the paint storage part is communicated with the third mixing drum through a first connecting pipe.

Further, the spraying part comprises a spraying opening; the output end of the spraying port faces the upper surface of the foil.

Further, the drying mechanism comprises a drying part for drying the pole piece and a second hot air blower for outputting hot air to the upper surface of the pole piece; one end of the drying part forms an opening for the pole piece to pass through.

Further, the rolling mechanism comprises a rolling part for rolling the pole pieces.

Further, the rolling part includes a first rolling roller and a second rolling roller; the axis level of first roller and second roller sets up and is mutually perpendicular with the direction of delivery of pole piece, first roller and second have the first clearance that the pole piece passed between the roller, the upper surface roll connection of first roller and pole piece, the second roller rolls the lower surface roll connection of roller and pole piece.

A high-efficiency and high-performance pole plate formation process comprises the following steps:

(1) coating positive coating or negative coating on the foil to form a positive pole piece and a negative pole piece;

(2) drying the positive pole piece and the negative pole piece;

(3) carrying out rolling treatment on the positive pole piece and the negative pole piece;

(4) slitting the rolled positive pole piece and negative pole piece to form a negative pole single piece and a positive pole single piece;

(5) baking the positive single piece and the negative single piece for the first time;

(6) winding the first diaphragm, the negative single sheet, the second diaphragm and the positive single sheet to form a battery cell;

(7) assembling the battery cell;

in the step (1), hot melt adhesive is applied to the positive pole piece and the negative pole piece.

And further, applying hot melt adhesive on the upper surfaces of the positive pole piece and the negative pole piece through a glue applying device.

Further, in the step (6), in the process of conveying the first diaphragm, the negative single sheet, the second diaphragm and the positive single sheet, the first diaphragm, the negative single sheet, the second diaphragm and the positive single sheet are respectively subjected to electrostatic electret treatment.

Furthermore, the first diaphragm, the negative single sheet, the second diaphragm and the positive single sheet are respectively subjected to electrostatic electret treatment through the first electrostatic electret generator, the second electrostatic electret generator, the third electrostatic electret generator and the fourth electrostatic electret generator, so that the first diaphragm, the negative single sheet, the second diaphragm and the positive single sheet are charged with static electricity and mutually repel in the conveying process without interference.

Further, a first clamping part of the winding device clamps the first diaphragm, the negative single piece, the second diaphragm and the positive single piece, after the first clamping part is driven by the first moving driving device to stretch the first diaphragm, the negative single piece, the second diaphragm and the positive single piece to the length required to be wound, in the process of pulling each layer, the heating device heats the positive single piece and the negative single piece to melt the hot melt adhesive, the second clamping part clamps the tail ends of the first diaphragm, the negative single piece, the second diaphragm and the positive single piece, the first cutting part cuts off each layer, the first moving driving device drives the first clamping part to move into a first limiting groove and a second limiting groove of the auxiliary winding piece, the first diaphragm, the negative single piece, the second diaphragm and the positive single piece are firstly contacted with the auxiliary winding piece to lead out static electricity, the first rotating driving device drives the first clamping part to rotate to wind each layer, the second movable driving device drives the second clamping part to gradually approach to the first clamping part to be matched with the first clamping part to complete the winding operation, the hot melt adhesive on the anode single sheet and the cathode single sheet is adhered to the second diaphragm and the first diaphragm together in the winding process to enable the connection to be more compact and tidy, after the winding is finished, the tape supply part outputs a termination adhesive tape, the vacuum adsorption head of the first adsorption part adsorbs the termination adhesive tape, the second cutting part cuts off the termination adhesive tape roll after the vacuum adsorption head adsorbs the termination adhesive tape, the first lifting driving device drives the vacuum adsorption head to move downwards to be matched with the first rotary driving device to enable the termination adhesive tape roll to be adhered to the tail ends of the first diaphragm, the cathode single sheet, the second diaphragm and the anode single sheet to form a battery cell, the first telescopic driving device drives the first clamping part to move backwards to extend out of the battery cell, and the auxiliary winding part and the battery cell are driven by the auxiliary conveying belt to convey forwards, the winding device performs a second winding operation.

Further, in the step (7), the battery core is assembled through an assembling device.

Further, the first clamping device clamps and places the battery cell on the auxiliary winding part in a shell on the first conveying device, the second clamping device clamps and places the shell, the first welding device welds the joint of the bottom of the shell and the lower gasket, the welding is continued to convey forwards, the grabbing part of the gasket supply device fixes the shell, the gasket output part outputs the upper gasket into an opening at the upper end of the shell, a fourth telescopic driving device of the rolling groove device drives the rolling groove disc to move to contact with the outer circumferential surface of the shell for rolling groove treatment, the third clamping device clamps and places the shells in the bearing disc one by one, the first conveying belt conveys the bearing disc, the fourth clamping device clamps and places the bearing disc in the first baking cavity for baking treatment, the third conveying device conveys the shells to the sixth clamping device, the sixth clamping device places the shells in the bearing disc on the fourth conveying device, the seventh adsorption part adsorbs the housing, and the electrolyte injection part injects electrolyte into the housing.

Further, before the step (1), a positive electrode coating material and a negative electrode coating material are prepared.

Further, preparing a positive coating or a negative coating through a glue making mechanism; placing part of the positive electrode raw materials into a first homogenizing device and stirring to form a first positive electrode mixture, placing the other part of the positive electrode raw materials into a second homogenizing device and stirring to form a second positive electrode mixture, and introducing the first positive electrode mixture and the second positive electrode mixture into a third homogenizing device to form a positive electrode coating; or putting part of the negative electrode raw materials into a first homogenizing device and stirring to form a first negative electrode mixture, putting the other part of the negative electrode raw materials into a second homogenizing device and stirring to form a second negative electrode mixture, and introducing the first negative electrode mixture and the second negative electrode mixture into a third homogenizing device to form the negative electrode coating.

Further, in the step (1), a spraying device of the coating mechanism sprays the positive coating on the foil to form a positive pole piece, or sprays the negative coating on the foil to form a negative pole piece.

Further, in the step (2), drying the positive pole piece or the negative pole piece through a drying mechanism; the positive pole piece or the negative pole piece enters from the opening of the drying part, and the hot air blower outputs hot air to the upper surface of the positive pole piece or the negative pole piece to dry the positive pole piece or the negative pole piece.

Further, in the step (3), the rolling mechanism is used for rolling the positive pole piece or the negative pole piece, and the positive pole piece or the negative pole piece passes through the first rolling roller and the second rolling roller, so that the coating on the foil is better attached to the foil, and the connection between the foil and the coating is tighter.

Further, in the step (4), the positive pole piece or the negative pole piece is cut by a cutting mechanism of the cutting device, and the winding mechanism winds the cut positive pole single piece or negative pole single piece.

Further, the pole pieces are equally cut by the plurality of cutting devices, the pole pieces are cut by a first cutting part and a second cutting part of the cutting devices, the negative pole single pieces or the positive pole single pieces are wound by a winding device of the winding mechanism, the first winding disc and the second winding disc correspond to the negative pole single pieces or the positive pole single pieces, and the negative pole single pieces and the positive pole single pieces are wound.

Further, in the step (5), the furled positive single pieces and negative single pieces are baked through a second baking mechanism; and placing the positive single sheets or the negative single sheets on the first coiling disc and the second coiling disc into a second baking part for baking.

After the structure is adopted, the high-efficiency and high-performance polar plate formation equipment has the following beneficial effects that:

the electrostatic electret device of the forming device respectively carries out electrostatic electret treatment on the first diaphragm, the negative single sheet, the second diaphragm and the positive single sheet in the process of conveying the first diaphragm, the negative single sheet, the second diaphragm and the positive single sheet, so that interference in the conveying process is avoided, and the processing stability is improved; the glue applying device of the forming device applies hot melt glue on the upper surfaces of the positive pole piece and the negative pole piece, the heating device firstly performs heating treatment on the negative pole single piece and the positive pole single piece when the first diaphragm, the negative pole single piece, the second diaphragm and the positive pole single piece are wound, the winding part of the winding device winds the first diaphragm, the negative pole single piece, the second diaphragm and the positive pole single piece through the auxiliary part to form the battery cell, the connection between the negative pole single piece and the positive pole single piece and the diaphragm is more compact and neat in the winding process, the glue pasting part sticks end glue on the tail end of the wound battery cell, and the winding of the battery cell is completed; the forming device has simple structure, reduces the failure rate of machinery, improves the production efficiency, improves the processing stability of the electrostatic electret device, reduces the reject ratio, simultaneously leads the connection between the negative single sheet and the positive single sheet and the diaphragm to be more compact and neat after being wound into the battery core, improves the conductivity, improves the performance of the manufactured battery and prolongs the service life.

The invention also provides a high-efficiency and high-performance pole plate formation process, which comprises the steps of applying hot melt adhesive on the positive pole piece and the negative pole piece, heating the negative pole single piece and the positive pole single piece when the first diaphragm, the negative pole single piece, the second diaphragm and the positive pole single piece are wound, so that the negative pole single piece, the positive pole single piece and the diaphragm are more compactly and neatly connected in the winding process of the first diaphragm, the negative pole single piece, the second diaphragm and the positive pole single piece, the conductivity is improved, the performance and the service life of a manufactured battery are improved, the structure of a winding device is simple, the fault rate of machinery is reduced, and the production efficiency is improved.

Drawings

FIG. 1 is a schematic perspective view of an efficient high-performance plate formation apparatus and process according to the present invention;

FIG. 2 is a schematic structural view of the molding apparatus of the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

FIG. 4 is a schematic view of the slitting device according to the present invention;

FIG. 5 is an enlarged view of a portion of FIG. 4 at B;

FIG. 6 is a schematic view of the structure of the coating apparatus of the present invention.

In the figure: 1-forming device, 2-assembling device, 11-gluing device, 12-electrostatic electret device, 13-heating device, 14-winding device, 141-winding section, 142-auxiliary section, 143-gluing section, 1411-first clamping section, 1412-second clamping section, 1413-first cutting section, 1414-first movement driving device, 1415-first telescopic driving device, 1416-first rotation driving device, 1417-second movement driving device, 1418-second telescopic driving device, 1421-auxiliary winding member, 1422-auxiliary conveyor belt, 1431-belt supply section, 1432-first adsorption section, 1433-second cutting section, 121-first electrostatic electret generator, 122-second electrostatic electret generator, 123-third electrostatic electret generator, 124-a fourth electrostatic electret generator, 111-a glue application part, 131-an upper hot air blower, 132-a lower hot air blower, 15-a first feeding device, 16-a second feeding device, 17-a third feeding device, 18-a fourth feeding device, 151-a first guide part, 152-a first conveying part, 161-a second guide part, 162-a second conveying part, 171-a third guide part, 172-a third conveying part, 181-a fourth guide part, 182-a fourth conveying part, 19-a limiting device, 191-an upper limiting part, 192-a lower limiting part, 21-a first clamping device, 22-a first conveying device, 23-a first welding mechanism, 231-a second clamping device, 232-a first welding device, 24-a gasket feeding device, 25-a rolling groove device, 241-a grabbing part, 242-a gasket containing part, 243-a gasket output part, 251-a rolling groove disc, 26-a first baking mechanism, 261-a first baking device, 262-a second conveying device, 263-a third conveying device, 2621-a bearing disc, 2622-a third clamping device, 2623-a first conveying belt, 2624-a fourth clamping device, 2631-a fifth clamping device, 2632-a second conveying belt, 2611-a first baking part, 2612-a first baking cavity, 27-a liquid injection mechanism, 271-a sixth clamping device, 272-a fourth conveying device, 273-a liquid injection device, 2731-a seventh adsorption part, 2732-an eighth moving driving device, 2733-an electrolyte storage part, 2734-an electrolyte injection part and 3-a splitting device, 31-first feeding mechanism, 32-slitting mechanism, 33-winding mechanism, 34-cutting device, 341-first cutting portion, 342-second cutting portion, 35-tensioning device, 36-winding device, 351-first tensioning portion, 3511-first tensioning roller, 3512-second tensioning roller, 3513-third tensioning roller, 361-first winding portion, 362-second winding portion, 3611-first guide roller, 3612-first winding disk, 3621-second guide roller, 3622-second winding disk, 37-second baking mechanism, 4-coating device, 41-glue making mechanism, 42-coating mechanism, 43-drying mechanism, 44-rolling mechanism, 411-first homogenizing device, 412-second homogenizing device, 413-third homogenizing device, 421-foil conveying device, 422-spraying device, 4211-bearing part, 4212-second tensioning part, 4213-foil conveying part, 4214-pole piece winding part, 4221-spraying part, 4222-coating storage part, 431-drying part, 432-second hot air blower, 441-first rolling roller and 442-second rolling roller.

Detailed Description

In order to further explain the technical solution of the present invention, the following detailed description is given by way of specific examples.

As shown in fig. 1 to 6, the efficient and high-performance polar plate formation equipment of the present invention includes a forming device 1 for winding a single polar plate and a diaphragm to form a battery cell, and an assembling device 2 for assembling the battery cell; the forming device 1 comprises a glue applying device 11 for applying glue to the upper surface of a pole piece, an electrostatic electret device 12 for performing electrostatic electret treatment on each layer of a battery cell, a heating device 13 for heating a positive single piece and a negative single piece, and a winding device 14 for winding a first diaphragm, the negative single piece, a second diaphragm and the positive single piece together to form the battery cell; the winding device 14 includes a winding portion 141 for winding the first separator, the negative electrode sheet, the second separator, and the positive electrode sheet, an auxiliary portion 142 for assisting the winding of the winding portion 141, and a tape portion 143 for applying a finishing tape to the wound battery cell.

In this way, the electrostatic electret device 12 of the forming device 1 respectively performs electrostatic electret treatment on the first diaphragm, the negative single sheet, the second diaphragm and the positive single sheet in the process of conveying the first diaphragm, the negative single sheet, the second diaphragm and the positive single sheet, so that interference in the conveying process is avoided, and the processing stability is improved; the glue applying device 11 of the forming device 1 applies hot melt glue on the upper surfaces of the positive pole piece and the negative pole piece, the heating device 13 firstly performs heating treatment on the negative pole single piece and the positive pole single piece when the first diaphragm, the negative pole single piece, the second diaphragm and the positive pole single piece are wound, the winding part 141 of the winding device 14 winds the first diaphragm, the negative pole single piece, the second diaphragm and the positive pole single piece through the auxiliary part 142 to form the battery cell, the connection between the negative pole single piece and the positive pole single piece and the diaphragm is more compact and neat in the winding process, the glue pasting part 143 pastes termination glue on the tail end of the wound battery cell to complete the winding of the battery cell; the forming device 1 has simple structure, reduces the failure rate of machinery, improves the production efficiency, improves the processing stability of the electrostatic electret device 12, reduces the reject ratio, simultaneously leads the connection between the negative single sheet and the positive single sheet and the diaphragm to be more compact and neat after being wound into the battery core, improves the conductivity, improves the performance of the manufactured battery and prolongs the service life. Specifically, the pole piece comprises a positive pole piece and a negative pole piece, and the pole piece monomer comprises a positive single piece and a negative single piece.

Preferably, the winding portion 141 includes first and

second clamping portions

1411 and 1412 that clamp the first separator, the negative electrode single sheet, the second separator, and the positive electrode single sheet, and a first cutting portion 1413 that cuts the first separator, the negative electrode single sheet, the second separator, and the positive electrode single sheet. The first clamping part 1411 clamps the first diaphragm, the negative single piece, the second diaphragm and the positive single piece, the first moving driving device 1414 drives the first clamping part 1411 to elongate the first diaphragm, the negative single piece, the second diaphragm and the positive single piece to a length required to be wound, the second moving driving device 1417 drives the second clamping part 1412 to clamp the tail ends of the first diaphragm, the negative single piece, the second diaphragm and the positive single piece, the first cutting part 1413 cuts off each layer, the first moving driving device 1414 drives the first clamping part 1411 to move, the second moving driving device 1417 drives the second clamping part 1412 to move, the first clamping part 1411 moves into the first limiting groove and the second limiting groove of the auxiliary winding piece 1421 to enable each layer to be in contact with the auxiliary part 142 to eliminate static electricity on each layer, the first rotating driving device 1416 drives the first clamping part 1411 to rotate to wind each layer, and the second moving driving device 1417 drives the second clamping part 1412 to gradually draw the first clamping part 1 close to the first clamping part 1 to match with the first clamping part 1411 the winding operation is completed. Specifically, the auxiliary portion 142 is made of a conductive material.

Preferably, the first clamping portion 1411 includes a first clamping bar, a second clamping bar, and a first opening and closing driving device that drives the first clamping bar and the second clamping bar to open and close; the second clamping portion 1412 includes a third clamping rod, a fourth clamping rod, and a second opening/closing driving device that drives the third clamping rod and the fourth clamping rod to open and close. The first clamping rod and the second clamping rod are driven by the first opening and closing driving device to clamp the first diaphragm, the negative single piece, the second diaphragm and the positive single piece in a closed mode, and the third clamping rod and the fourth clamping rod are driven by the second opening and closing driving device to clamp the first diaphragm, the negative single piece, the second diaphragm and the positive single piece in a closed mode; the first opening and closing driving device comprises a first air cylinder and a second air cylinder, the output end of the first air cylinder is connected with a first clamping rod, the output end of the second air cylinder is connected with a second clamping rod, the second opening and closing driving device comprises a third air cylinder and a fourth air cylinder, the output end of the third air cylinder is connected with the third clamping rod, and the output end of the fourth air cylinder is connected with the fourth clamping rod; the first clamping rod, the second clamping rod, the third clamping rod and the fourth clamping rod are made of insulating materials.

Preferably, the winding unit 141 further includes a first movement driving means 1414 for driving the first gripper 1411 to move, a first expansion driving means 1415 for driving the first gripper 1411 to expand and contract, a first rotation driving means 1416 for driving the first gripper 1411 to rotate, a second movement driving means 1417 for driving the second gripper 1412 to move, and a second expansion driving means 1418 for driving the second gripper 1412 to expand and contract. After the first clamping portion 1411 is driven by the first movement driving device 1414 to elongate the first separator, the negative electrode single piece, the second separator and the positive electrode single piece to the desired winding length, the second moving driving device 1417 drives the second clamping portion 1412 to clamp the tail ends of the first diaphragm, the negative single sheet, the second diaphragm and the positive single sheet, the first cutting portion 1413 cuts off each layer, the first moving driving device 1414 drives the first clamping portion 1411 to move, the second moving driving device 1417 drives the second clamping portion 1412 to move, the first clamping portion 1411 moves into the first limiting groove and the second limiting groove of the auxiliary winding member 1421 to enable each layer to be in contact with the auxiliary portion 142 to eliminate static electricity on each layer, the first rotating driving device 1416 drives the first clamping portion 1411 to rotate to wind each layer, and the second moving driving device 1417 drives the second clamping portion 1412 to gradually close to the first clamping portion 1411 to match the first clamping portion 1411 to complete winding operation; the first telescopic driving device 1415 drives the first clamping rod and the second clamping rod to retract from the battery core, and the second telescopic driving device 1418 drives the third clamping rod and the fourth clamping rod to retract, return to the original position and avoid the interference with other components. Specifically, the first moving driving device 1414 and the second moving driving device 1417 are both rodless cylinders, the first telescopic driving device 1415 and the second telescopic driving device 1418 are both telescopic cylinders, and the first rotary driving device 1416 is a rotary cylinder.

Preferably, in order to make the cut surface smoother, the first cutting portion 1413 includes a first upper cutter, a first lower cutter, and a third opening and closing driving device that drives the upper cutter and the lower cutter to open and close. The third opening and closing driving device comprises a first power cylinder and a second power cylinder, wherein the output end of the first power cylinder is connected with the first upper cutter, and the output end of the second power cylinder is connected with the first lower cutter; the first upper cutter and the second upper cutter are both ceramic cutters.

Preferably, the auxiliary portion 142 includes an auxiliary winding member 1421; the auxiliary winding member 1421 includes a first connection plate, a second connection plate, and a third connection plate, which are adjacently disposed in this order; a first limiting winding groove is formed in one side of the first connecting plate, a second limiting winding groove is formed in one side of the third connecting plate, and the distance between the first connecting plate and the third connecting plate is smaller than the width dimension of the negative pole single piece. The first clamping part 1411 enters a first limiting winding groove and a second limiting winding groove, and the height size of the first limiting winding groove and the second limiting winding groove is equal to the diameter size of the cylindrical battery cell; make the cylinder electricity core coil and finish the back joint in first spacing coiling groove and the spacing coiling inslot of second, be convenient for follow-up putting cylinder electricity core in the casing.

Preferably, the first limit winding groove comprises a first extending section and a first arc-shaped winding section; the second limiting winding groove comprises a second stretching-in section and a second arc-shaped winding section. First clamping part 1411 passes first section and the second section of stretching into, and the diameter of first arc winding section and second arc winding section equals the diameter of cylinder electricity core, makes first clamping part 1411 convolute in first arc winding section and second arc winding section, makes the process of convoluteing more smooth.

Preferably, in order to improve the working efficiency, the auxiliary part 142 further includes an auxiliary conveyor belt 1422 that conveys the auxiliary winding member 1421; the auxiliary winding member 1421 is fixedly coupled to the auxiliary conveyor belt 1422.

Preferably, in order to improve work efficiency, the taping part 143 includes a tape supply part 1431 that supplies the termination tape roll, a first suction part 1432 that sucks the termination tape roll, and a second cutting part 1433 that cuts the termination tape roll.

Preferably, the first suction part 1432 includes a vacuum suction head sucking the termination tape roll; the lower surface of the vacuum adsorption head forms an arc adsorption groove matched with the outer circumferential surface of the battery core. The arc-shaped adsorption groove is matched with the outer circumferential surface of the battery core, so that the termination adhesive tape adsorbed by the vacuum adsorption head is more easily adhered to the battery core; specifically, the vacuum generator is used for sucking to enable the vacuum adsorption head to generate negative pressure so as to firmly adsorb the termination adhesive tape, and after the vacuum generator is attached to the battery cell, the vacuum generator is used for inflating to enable the air pressure of the vacuum adsorption head to return to zero, so that the termination adhesive tape cannot be torn off from the battery cell.

Preferably, in order to improve the working efficiency, the first suction part 1432 further includes a first elevation driving means for driving the vacuum suction head to ascend and descend. Specifically, the winding station of electric core is under the vacuum adsorption head, and first lift drive arrangement includes lift cylinder.

Preferably, the tape supplying part 1431 includes a tape winding roller that winds the termination tape roll, a first guide roller that guides the termination tape roll, and a tape conveying roller that conveys the termination tape roll. The adhesive tape is conveyed by the adhesive tape conveying roller, and the first guide roller enables the conveying of the adhesive tape roll to be smoother.

Preferably, in order to improve the working efficiency, the second cutting part 1433 includes a second upper cutter, a second lower cutter, and a fourth opening and closing driving device which drives the second upper cutter and the second lower cutter to be opened and closed. Specifically, the fourth switching driving device comprises a third power cylinder and a fourth power cylinder, the output end of the third power cylinder is connected with the second upper cutter, and the output end of the fourth power cylinder is connected with the second lower cutter.

Preferably, in order to improve work efficiency, the tape feed roller has a first output end outputting the terminating tape roll, and the second cutting part 1433 is provided at one side of the first output end.

Preferably, the electrostatic electret 12 includes a first electrostatic electret generator 121 for electrostatically electret-treating the first membrane, a second electrostatic electret generator 122 for electrostatically electret-treating the negative electrode monolith, a third electrostatic electret generator 123 for electrostatically electret-treating the second membrane, and a fourth electrostatic electret generator 124 for electrostatically electret-treating the positive electrode monolith. The first diaphragm, the negative single sheet, the second diaphragm and the positive single sheet are charged with static electricity by performing electrostatic electret treatment on the first diaphragm, the negative single sheet, the second diaphragm and the positive single sheet, and the first diaphragm, the negative single sheet, the second diaphragm and the positive single sheet repel each other in the conveying process, so that mutual interference in the conveying process is avoided, and meanwhile, the occupied area of operation is saved.

Preferably, the sizing device 11 comprises a sizing portion 111 that outputs hot melt glue to the pole pieces. The hot melt adhesive is coated on the positive pole piece and the negative pole piece through the gluing part 111, so that the connection is more compact and neat after the layers of the battery cell are wound subsequently, the conductivity of the battery is improved, and the service life of the battery is prolonged.

Preferably, in order for the glue applying part 111 to uniformly apply the hot melt glue to the upper surface of the pole piece, the glue applying part 111 comprises a glue applying brush for applying the hot melt glue to the upper surface of the pole piece; the width dimension of the glue brush is equal to the width dimension of the pole piece.

Preferably, the heating device 13 includes an upper heat blower 131 above the first separator, and a lower heat blower 132 below the positive electrode single sheet; the output end of the upper hot air blower 131 is disposed toward the upper surface of the first separator, and the output end of the lower hot air blower 132 is disposed toward the lower surface of the positive electrode tab. Before winding, the anode single sheet and the cathode single sheet are heated to melt the hot melt adhesive, and the hot melt adhesive is gradually cooled and solidified in the winding process, so that the connection among all layers is more compact.

Preferably, in order to improve the work efficiency, the molding device 1 further includes a first supply device 15 supplying the first separator, a second supply device 16 supplying the negative electrode individual pieces, a third supply device 17 supplying the second separator, and a fourth supply device 18 supplying the positive electrode individual pieces; the first supply device 15, the second supply device 16, the third supply device 17 and the fourth supply device 18 are arranged in this order from top to bottom.

Preferably, the first feeding device 15 comprises a first guide portion 151 for guiding the first membrane and a first delivery portion 152 for delivering the first membrane. The first guide part 151 includes a plurality of rotating rollers roll-coupled to a surface of the first membrane, and the first transfer part 152 includes an upper transfer roller and a lower transfer roller with a gap therebetween through which the first membrane passes, so that the transfer of the first membrane is more smooth; specifically, the first guide part 151 and the first conveying part 152 are made of an insulating material.

Preferably, the second supply device 16 includes a second guide portion 161 that guides the negative electrode individual pieces, and a second conveying portion 162 that conveys the negative electrode individual pieces. The second guide part 161 comprises a plurality of rotating rollers in rolling connection with the surface of the negative single piece, the second conveying part 162 comprises an upper conveying roller and a lower conveying roller, and a gap through which the negative single piece passes is formed between the upper conveying roller and the lower conveying roller, so that the conveying of the negative single piece is more stable; specifically, the second guide portion 161 and the second conveying portion 162 are made of an insulating material.

Preferably, the third supply device 17 includes a third guide portion 171 that guides the second diaphragm, and a third delivery portion 172 that delivers the second diaphragm. The third guide part 171 includes a plurality of rotating rollers roll-coupled to the surface of the second diaphragm, and the third transfer part 172 includes an upper transfer roller and a lower transfer roller with a gap therebetween through which the third diaphragm passes, so that the transfer of the third diaphragm is more smooth; specifically, the third guide part 171 and the third conveying part 172 are made of an insulating material.

Preferably, the fourth supply device 18 includes a fourth guide portion 181 that guides the individual positive electrode sheets, and a fourth conveying portion 182 that conveys the individual positive electrode sheets. The fourth guide part 181 includes a plurality of rotating rollers which are in rolling connection with the surface of the positive electrode single piece, the fourth conveying part 182 includes an upper conveying roller and a lower conveying roller, and a gap through which the positive electrode single piece passes is formed between the upper conveying roller and the lower conveying roller, so that the conveying of the positive electrode single piece is more stable; specifically, the fourth guide part 181 and the fourth conveying part 182 are made of an insulating material.

Specifically, the negative electrode tabs are welded to the negative electrode sheets before the negative electrode sheets are fed by the second feeding device 16, and the positive electrode tabs are welded to the positive electrode sheets before the positive electrode sheets are fed by the fourth feeding device 18.

Preferably, the forming device 1 further comprises a limiting device 19 for limiting the first diaphragm and the positive electrode single piece. The first diaphragm, the negative single sheet, the second diaphragm and the positive single sheet are always in the limited range through the limiting device 19, and subsequent winding operation is facilitated.

Preferably, the limiting means 19 includes an upper limiting portion 191 that limits the first separator, and a lower limiting portion 192 that limits the anode segment; the first separator, the negative electrode single piece, the second separator, and the positive electrode single piece are interposed between the upper stopper portion 191 and the lower stopper portion 192. The first separator, the negative electrode piece, the second separator, and the positive electrode piece are always positioned between the upper stopper 191 and the lower stopper 192 by the upper stopper 191 and the lower stopper 192; specifically, the upper limiting portion 191 includes a plurality of upper limiting rollers, the lower limiting portion 192 includes a plurality of lower limiting rollers, and the upper limiting rollers and the lower limiting rollers are made of insulating materials.

Preferably, the assembling device 2 comprises a first clamping device 21 for clamping and placing the battery core in the housing, and a first conveying device 22 for conveying the housing; the first gripping device 21 is located between the first conveyor 22 and the auxiliary conveyor 1422. Clamping and placing the battery cell in the shell through a first clamping device 21; specifically, the bottom end of the shell is pre-assembled with a lower gasket, and then the shell is placed on a first conveying device 22 for conveying, wherein the first conveying device 22 comprises a conveying belt, a driving wheel, a driven wheel and a motor; the conveyer belt winding action wheel sets up with following the driving wheel, and the output and the action wheel of motor link together.

Preferably, the first clamping device 21 includes a second suction portion for sucking the battery cell, a third rotation driving device for driving the second suction portion to rotate, and a third movement driving device for driving the second suction portion to move along a predetermined track. The battery cell is adsorbed by the second adsorption part, the third rotary driving device drives the second adsorption part to rotate between the first conveying device 22 and the auxiliary conveying belt 1422, the third mobile driving device comprises a plurality of connecting arms and a plurality of motors, adjacent connecting arms are connected through rotating shafts, the output ends of the plurality of motors are respectively connected with the corresponding rotating shafts, and the motors drive the rotating shafts to rotate, so that the connecting arms can drive the second adsorption part to lift and stretch; specifically, the second adsorption part adsorbs the electric core through the vacuum adsorption principle, and the third rotary driving device comprises a rotary cylinder.

Preferably, in order to prevent the lower gasket from falling, the fitting device 2 further includes a first welding mechanism 23 that welds the bottom of the housing and the lower gasket together.

Preferably, the first welding mechanism 23 includes a second clamping device 231 for clamping the housing, and a first welding device 232 for welding a joint of the housing and the lower pad. The shell is clamped to a preset position through the second clamping device 231, and the first welding device 232 welds the joint of the lower gasket and the shell, so that the connection strength of the lower gasket and the bottom end of the shell is higher.

Preferably, the second clamping device 231 includes a third suction portion for sucking the housing, a third telescopic driving device for driving the third suction portion to be telescopic, and a second elevation driving device for driving the third suction portion to be elevated. The third adsorption part is driven by the cooperation of the third telescopic driving device and the second lifting driving device, and the shell is lifted to a welding station after the shell is adsorbed by the third adsorption part; specifically, the third telescopic driving device and the second lifting driving device are connected through rotating shafts through a plurality of connecting arms and drive the rotating shafts to rotate through motors, so that the lifting and the lifting of the third adsorption part are realized, and the third adsorption part adsorbs the shell through a vacuum adsorption principle.

Preferably, the first welding device 232 includes a first welding head, and a fourth movement driving device that drives the first welding head to move along a predetermined trajectory. Through the first soldered connection of fourth mobile drive device drive and encircle the junction welding of gasket and shell down, specifically, fourth mobile drive device includes revolving cylinder, a plurality of linking arms and a plurality of motor, connect through the pivot between the adjacent linking arm, the output of a plurality of motors links together with the pivot that corresponds respectively, rotate through the motor drive pivot, make a plurality of linking arms realize driving first soldered connection lift and flexible purpose, a plurality of linking arms form linking arm group, the one end of linking arm group links together with revolving cylinder's output, the other end and the first soldered connection of linking arm group are connected.

Preferably, the assembling device 2 further comprises a gasket supply device 24 for placing an upper gasket on the top end of the battery core, and a channeling device 25 for channeling the casing. The upper gasket is put into the casing and positioned at the top end of the battery core through the gasket supply device 24, and the casing is subjected to a channeling treatment at a preset position through the channeling device 25.

Preferably, the gasket supply device 24 includes a grasping portion 241, a gasket accommodating portion 242, and a gasket output portion 243; the gripping part 241 comprises a vacuum gripping head and a telescopic cylinder for driving the vacuum gripping head to stretch and retract; the gasket receiving portion 242 has a first receiving cavity therein for receiving the upper gasket, and the gasket output portion 243 includes a gasket output port for outputting the upper gasket, the gasket output port being disposed downward. The vacuum grabbing head is driven by the telescopic cylinder to grab the shell to position the shell, and the gasket accommodating part 242 outputs the upper gasket into the shell through the gasket output part 243 and is located at the top end of the battery cell.

Preferably, the channeling device 25 comprises a channeling disk 251, a fourth telescopic driving device for driving the channeling disk 251 to be telescopic, and a fourth rotary driving device for driving the channeling disk 251 to rotate; the axis of the slotted disk 251 and the axis of the housing are arranged in parallel. The fourth rotary driving device drives the slotted disc 251 to rotate, the fourth telescopic driving device drives the slotted disc 251 to gradually move along the radial direction of the shell, and a groove is machined in the shell; specifically, the fourth rotary driving device comprises a rotary cylinder, and the fourth telescopic driving device comprises a telescopic cylinder.

Preferably, the assembly device 2 further comprises a first baking mechanism 26 for baking the casing and the battery core. Before the electrolyte is injected into the shell, the shell and the battery core need to be baked again.

Preferably, in order to improve the working efficiency, the first baking mechanism 26 includes a first baking device 261, a second conveying device 262 that conveys the casing and the battery cell into the first baking device 261, and a third conveying device 263 that conveys the casing and the battery cell out of the first baking device 261; the second conveying device 262, the first roasting device 261, and the third conveying device 263 are disposed in this order along the conveying direction of the casing.

Preferably, the second transfer device 262 includes a carrier tray 2621 for carrying the housing, a third pick device 2622 for picking up the housing, a first conveyor 2623 for transferring the carrier tray 2621, and a fourth pick device 2624 for picking up the carrier tray 2621. The shells are clamped and placed in the bearing disc 2621 by the third clamping device 2622, after the bearing disc 2621 is filled with the shells, the bearing disc 2621 is conveyed to the first baking device 261 by the first conveying belt 2623, and the bearing disc 2621 is clamped and placed in the first baking device 261 by the fourth clamping device 2624.

Preferably, the third grasping apparatus 2622 includes a fourth adsorption part, a fifth movement driving device that drives the fourth adsorption part to move along a predetermined trajectory, and a fifth rotation driving device that drives the fifth movement driving device to rotate. The fifth rotary driving device drives the fourth adsorption part to rotate between the first conveying device 22 and the second conveying belt 2632, and the fifth mobile driving device drives the fourth adsorption part to place the shells into the bearing disc 2621 one by one; specifically, fifth mobile drive device is including rotating the cylinder, a plurality of linking arms and a plurality of motor, connect through the pivot between the adjacent linking arm, the output of a plurality of motors links together with the pivot that corresponds respectively, rotate through the motor drive pivot, make a plurality of linking arms realize driving the fourth adsorption portion and go up and down and flexible purpose, the output and the fourth adsorption portion of rotating the cylinder link together, it rotates the shell to the horizontality to place in bearing dish 2621 from vertical state to rotate the fourth adsorption portion of rotating the cylinder drive, fifth rotary drive device includes revolving cylinder.

Preferably, the fourth gripping device 2624 includes a fifth adsorption part, a sixth movement driving device that drives the fifth adsorption part to move along a predetermined trajectory, and a sixth rotation driving device that drives the sixth movement driving device to rotate. The sixth rotary driving device drives the fifth adsorption part to rotate between the first conveyor belt 2623 and the first baking device 261, and the sixth mobile driving device drives the fifth adsorption part to respectively place each bearing tray 2621 on a predetermined position of the first baking device 261; specifically, the sixth mobile driving device comprises a plurality of connecting arms and a plurality of motors, the connecting arms are connected through rotating shafts, the output ends of the motors are connected with the corresponding rotating shafts respectively, the rotating shafts are driven to rotate through the motors, the connecting arms are driven to achieve the purpose of driving the fifth adsorption part to ascend and descend and stretch, and the sixth rotary driving device comprises a rotary cylinder.

Preferably, the third transfer device 263 includes a fifth gripper 2631 for gripping the carrier tray 2621, and a second conveyer 2632 for conveying the carrier tray 2621. The baked trays 2621 are picked up and placed on the second conveyor 2632 by the fifth picking device 2631 from the first baking device 261.

Preferably, the fifth gripping device 2631 includes a sixth suction part, a seventh movement driving means for driving the sixth suction part to move along a predetermined trajectory, and a seventh rotation driving means for driving the seventh movement driving means to rotate. The seventh rotary driving device drives the sixth adsorption part to rotate between the first baking device 261 and the second conveyor 2632, and the seventh moving driving device drives the sixth adsorption part to take out each loading tray 2621 on the first baking device 261 and place the loading tray on the second conveyor 2632; specifically, the seventh mobile driving device comprises a plurality of connecting arms and a plurality of motors, the connecting arms are connected through rotating shafts, the output ends of the motors are connected with the corresponding rotating shafts respectively, the rotating shafts are driven to rotate through the motors, the connecting arms are driven to achieve the purpose of driving the sixth adsorption part to ascend and descend and stretch, and the seventh rotary driving device comprises a rotary cylinder.

Preferably, the first toasting device 261 comprises a first toasting portion 2611 and a first heat blower, and a plurality of first toasting cavities 2612 for placing the carrier plate 2621 are formed on the first toasting portion 2611. By placing each of the tray 2621 in the corresponding first baking chamber 2612, the first air heater heats each of the first baking chambers 2612 to bake the electric core in each of the tray 2621.

Preferably, the assembly device 2 further comprises a filling mechanism 27 for injecting the electrolyte into the casing.

Preferably, the liquid injection mechanism 27 includes a sixth gripping device 271 for gripping the housing in the tray 2621, a fourth transporting device 272 for transporting the housing, and a liquid injection device 273 for injecting the electrolyte into the housing. The shells in the bearing tray 2621 are clamped and placed on the fourth conveying device 272 by the sixth clamping device 271, and the fourth conveying device 272 conveys the shells to the liquid injection device 273 for liquid injection.

Preferably, the liquid injection device 273 includes a seventh adsorption part 2731 adsorbing the housing, an eighth movement driving device 2732 driving the seventh adsorption part 2731 to move along a predetermined trajectory, an electrolyte storage part 2733 accommodating the electrolyte, and an electrolyte injection part 2734 outputting the electrolyte; the electrolyte injection portion 2734 communicates with the electrolyte storage portion 2733. The seventh adsorption part 2731 is driven by the eighth movement driving device 2732 to move the casing to a predetermined position after clamping, and the electrolyte storage part 2733 outputs the electrolyte into the casing through the electrolyte injection part 2734; specifically, eighth mobile driving device 2732 includes a plurality of linking arms and a plurality of motors, and is connected through the pivot between the adjacent linking arms, and the output of a plurality of motors links together with the pivot that corresponds respectively, rotates through the motor drive pivot, makes a plurality of linking arms realize driving seventh adsorption portion 2731 and goes up and down and the purpose of flexible.

Preferably, the sixth gripping device 271 includes an eighth suction part, a ninth movement driving device that drives the eighth suction part to move along a predetermined trajectory, and an eighth rotation driving device that drives the ninth movement driving device to rotate. The eighth adsorption part is driven to rotate between the first conveying device 22 and the fourth conveying device 272 by the eighth rotating driving device, and the ninth moving driving device drives the eighth adsorption part to place the shells on the fourth conveying device 272 one by one; specifically, ninth mobile driving device includes revolving cylinder, a plurality of linking arms and a plurality of motor, connect through the pivot between the adjacent linking arm, the output of a plurality of motors links together with the pivot that corresponds respectively, rotate through the motor drive pivot, make a plurality of linking arms realize driving eighth adsorption portion and go up and down and flexible purpose, revolving cylinder's output and eighth adsorption portion link together, revolving cylinder drive eighth adsorption portion rotates and rotates the shell from the horizontality to vertical state and place on fourth conveyor 272, eighth rotary driving device includes revolving cylinder.

Preferably, in order to improve the working efficiency, the pole piece cutting device further comprises a cutting device 3 for cutting the pole pieces.

Preferably, the slitting device 3 comprises a first feeding mechanism 31 for supplying pole pieces, a slitting mechanism 32 for slitting the pole pieces to form pole piece monomers, and a winding mechanism 33 for winding the pole piece monomers. The pole pieces are conveyed by the first feeding mechanism 31, the pole pieces are equally divided and cut by the dividing and cutting mechanism 32, and then the pole piece monomers are wound by the winding mechanism 33.

Preferably, the slitting mechanism 32 includes a plurality of slitting devices 34 for slitting the pole pieces to form a plurality of positive pole pieces or a plurality of negative pole pieces, and the plurality of slitting devices 34 are arranged at equal intervals along the width direction of the pole pieces. The pole pieces are cut into individual pole piece halves by a plurality of cutting devices 34.

Preferably, the cutting device 34 comprises a first cut portion 341 and a second cut portion 342; the axis of the first cut portion 341 and the axis of the second cut portion 342 are obliquely arranged. The axis of the first cutting part 341 and the axis of the second cutting part 342 are obliquely arranged, so that the first cutting part 341 and the second cutting part 342 have openings larger than the width of the single pole piece, and the single pole piece cannot interfere with the first cutting part 341 and the second cutting part 342 when moving upwards or downwards.

Preferably, in order to make the cut surface more flat, the first cutting portion 341 includes a first circular saw blade; the second cutting portion 342 includes a second circular saw blade.

Preferably, in order to make the upward opening and the downward opening equal in size, the axis of the first circular saw blade is inclined at an angle of 45 °; the axis of the second circular saw blade is inclined at an angle of 135 deg..

Preferably, to improve cutting efficiency, the cutting device 34 further includes a first rotary drive device for driving the first circular saw blade to rotate, and a second rotary drive device for driving the second circular saw blade to rotate. In particular, the first and second rotary drives are both motor-driven.

Preferably, the winding mechanism 33 comprises a tensioning device 35 for tensioning the slit pole pieces and a winding device 36 for winding up the slit pole pieces. The tensioning device 35 is used for tensioning the anode single sheet or the cathode single sheet, so that the problem of wrinkling after the winding device 36 winds the anode single sheet or the cathode single sheet is avoided.

Preferably, in order to facilitate the winding of the negative electrode single piece or the positive electrode single piece, the tensioning device 35 includes a first tensioning portion 351 for tensioning the plurality of negative electrode single pieces or the plurality of positive electrode single pieces.

Preferably, in order to facilitate the winding of the negative or positive electrode sheets, the first tensioning portion 351 includes a first tensioning roller 3511, a second tensioning roller 3512 and a third tensioning roller 3513; the first tensioning roller 3511 and the third tensioning roller 3513 are connected with the lower surface of the single positive pole piece or the single negative pole piece in a rolling mode, the second tensioning roller 3512 is connected with the upper surface of the single positive pole piece or the single negative pole piece in a rolling mode, and the second tensioning roller 3512 is located between the first tensioning roller 3511 and the third tensioning roller 3513.

Preferably, the furling device 36 comprises a first furling part 361 and a second furling part 362. The positive single pieces or the negative single pieces are respectively collected through the first furling part 361 and the second furling part 362, so that the friction between the positive single pieces or the negative single pieces and the disc saw blade is avoided.

Preferably, in order to facilitate winding of each positive electrode sheet or each negative electrode sheet, the first winding part 361 includes a first guide roller 3611 and a plurality of first winding trays 3612; the second take-up section 362 includes a second guide roller 3621 and a plurality of second take-up disks 3622; the second guide roller 3621 is positioned below the first guide roller 3611. Part of the pole pieces are guided by a first guide roller 3611, a first winding disc 3612 winds the pole pieces on the first guide roller 3611, the other part of the pole pieces are guided by a second guide roller 3621, and a second winding disc 3622 winds the pole pieces on the second guide roller 3621.

Preferably, in order to stabilize the winding of the positive electrode single sheet or the negative electrode single sheet, the first winding portion 361 further includes a third rotation driving device for driving the plurality of first winding disks 3612 to rotate; the second take-up portion 362 further includes fourth rotation driving means for driving the plurality of second take-up disks 3622 to rotate. In particular, the third and fourth rotary drives are both motor-driven.

Preferably, the slitting device 3 further comprises a second baking mechanism 37 for baking the wound positive and negative electrode sheets in order to make the coating adhere to the foil better.

Preferably, the second toasting mechanism 37 comprises a second toasting portion and a heating element; a second accommodating cavity for accommodating the plurality of first winding disks 3612 and the second winding disk 3622 is formed in the second baking part, and the heating element is arranged in the second accommodating cavity. The second accommodating cavity in the baking part is heated by the heating element, and the positive electrode single sheet or the negative electrode single sheet on the first rolling disc 3612 and the second rolling disc 3622 in the second accommodating cavity is baked, so that the coating is better attached to the foil.

Preferably, in order to improve the working efficiency, the device further comprises a coating device 4 for coating the foil to form the pole piece.

Preferably, the coating device 4 includes a glue making mechanism 41 for making a positive coating or a negative coating, a coating mechanism 42 for coating the foil, a drying mechanism 43 for drying the pole pieces, and a rolling mechanism 44 for rolling the pole pieces. After the glue making mechanism 41 makes the positive coating or the negative coating, the coating mechanism 42 coats the positive coating or the negative coating on the foil to form a positive pole piece and a negative pole piece, and the drying mechanism 43 and the rolling mechanism 44 make the coating better adhere to the foil.

Preferably, the gum-making mechanism 41 includes a first homogenizing device 411, a second homogenizing device 412, and a third homogenizing device 413. When the anode coating is needed, introducing a part of the anode raw materials into a first homogenizing device 411 to be mixed to form a first anode mixture, introducing the other part of the anode raw materials into a second homogenizing device 412 to be mixed to form a second anode mixture, and introducing the first anode mixture and the second anode mixture into a third homogenizing device 413 to form the anode coating; when the negative electrode coating material is required, a part of the negative electrode raw material is introduced into the first homogenizing device 411 and mixed to form a first negative electrode mixture, the other part of the negative electrode raw material is introduced into the second homogenizing device 412 and mixed to form a second negative electrode mixture, and the first negative electrode mixture and the second negative electrode mixture are introduced into the third homogenizing device 413 to form the negative electrode coating material.

Preferably, the first homogenizing device 411 comprises a first stirring cylinder and a first stirring device; the first stirring device comprises a first stirring shaft, a plurality of first stirring parts connected to the outer circumferential surface of the first stirring shaft, and a fifth rotation driving device for driving the first stirring shaft to rotate; the plurality of first stirring parts are arranged at equal intervals along the axial direction of the first stirring shaft, the first stirring device is arranged in the first stirring cylinder, the axis of the first stirring cylinder is overlapped with the axis of the first stirring shaft, and the output end of the fifth rotation driving device is connected with the first stirring shaft. And introducing part of the positive electrode raw material or part of the negative electrode raw material into a first stirring cylinder, and stirring the positive electrode raw material or the negative electrode raw material by a first stirring device to form a first positive electrode mixture or a first negative electrode mixture. Specifically, the fifth rotational drive means includes a motor.

Preferably, the second homogenizing device 412 comprises a second mixing drum and a second mixing device; the second stirring device comprises a second stirring shaft, a plurality of second stirring parts connected to the outer circumferential surface of the second stirring shaft and a sixth rotation driving device for driving the second stirring shaft to rotate; the plurality of second stirring parts are arranged at equal intervals along the axial direction of the second stirring shaft, the second stirring devices are arranged in the second stirring barrel, the axis of the second stirring barrel is overlapped with the axis of the second stirring shaft, and the output end of the sixth rotation driving device is connected with the second stirring shaft. And introducing the other part of the positive electrode raw material or the other part of the negative electrode raw material into a second stirring cylinder, and stirring the positive electrode raw material or the negative electrode raw material by a second stirring device to form a second positive electrode mixture or a second negative electrode mixture. Specifically, the sixth rotary drive device includes a motor.

Preferably, the third homogenizing device 413 comprises a third mixing drum and a third mixing device; the third stirring device comprises a third stirring shaft, a plurality of third stirring parts connected with the outer circumferential surface of the third stirring shaft and a seventh rotation driving device for driving the third stirring shaft to rotate; the plurality of third stirring parts are arranged at equal intervals along the axial direction of the third stirring shaft, the third stirring device is arranged in the third stirring cylinder, the axis of the third stirring cylinder is overlapped with the axis of the third stirring shaft, and the output end of the seventh rotation driving device is connected with the third stirring shaft. Introducing the first positive electrode mixture and the second positive electrode mixture into a third stirring cylinder, and stirring the mixture by a third stirring device to form a positive electrode coating, or introducing the first negative electrode mixture and the second negative electrode mixture into the third stirring cylinder, and stirring the mixture by the third stirring device to form a negative electrode coating; specifically, the seventh rotary drive device includes a motor.

Preferably, in order to improve the working efficiency, the first mixing drum is communicated with the third mixing drum through the first material conveying pipe, and the second mixing drum is communicated with the third mixing drum through the second material conveying pipe.

Preferably, the coating mechanism 42 includes a foil feeding device 421 that feeds the foil, and a spraying device 422 that sprays the positive-electrode paint or the negative-electrode paint on the upper surface of the foil. The foil is conveyed by the foil conveying device 421, and the spraying device 422 uniformly coats the positive coating or the negative coating on the upper surface of the foil to form a pole piece, specifically, the pole piece is a positive pole piece or a negative pole piece.

Preferably, the foil conveying device 421 includes a bearing portion 4211 that bears the foil roll, a second tensioning portion 4212 that tensions the foil, a foil conveying portion 4213 that conveys the foil, and a pole piece winding portion 4214 that winds the pole piece. The pole piece winding part 4214 gradually winds up the foil coated with the coating, the foil conveying part 4213 enables the coating to be uniformly sprayed on the foil by the spraying device 422 to form a pole piece in the conveying process of the foil, and the second tensioning part 4212 enables the surface of the foil to be smoother; the pole piece furling part 4214 comprises a pole piece furling roller and a motor for driving the pole piece furling roller to rotate.

Preferably, the spraying device 422 includes a spraying part 4221 that outputs the positive electrode paint or the negative electrode paint, and a paint storage part 4222 that stores the positive electrode paint or the negative electrode paint; the paint reservoir 4222 communicates with the painting portion 4221 via a third delivery pipe, and the painting portion 4222 communicates with the third agitating drum via a first connecting pipe. The coating portion 4221 extracts the coating material in the coating material storage portion 4222 and coats the upper surface of the foil.

Preferably, the spraying part 4221 includes a spraying port; the output end of the spraying port faces the upper surface of the foil. And outputting the coating to the upper surface of the foil through the spraying opening.

Preferably, the drying mechanism 43 includes a drying part 431 for drying the pole piece, and a second hot air blower 432 for outputting hot air to the upper surface of the pole piece; one end of the drying section 431 forms an opening through which the pole piece passes. When the pole piece passes through the opening of the drying part 431, the second hot air blower 432 outputs hot air to dry the coating, so that the coating is better attached to the foil.

Preferably, the rolling mechanism 44 includes rolling means for rolling the pole pieces for better adhesion of the coating to the foil.

Preferably, in order to make the coating adhere to the foil better, the laminating part includes a first laminating roller 441 and a second laminating roller 442; the axes of the first rolling roller 441 and the second rolling roller 442 are horizontally arranged and perpendicular to the conveying direction of the pole pieces, a first gap is formed between the first rolling roller 441 and the second rolling roller 442, the pole pieces penetrate through the first gap, the first rolling roller 441 is in rolling connection with the upper surfaces of the pole pieces, and the second rolling roller 442 is in rolling connection with the lower surfaces of the pole pieces.

(2) drying the positive pole piece and the negative pole piece;

(7) assembling the battery cell;

Therefore, by applying hot melt adhesive on the positive pole piece and the negative pole piece, the negative pole single piece and the positive pole single piece are heated when the first diaphragm, the negative pole single piece, the second diaphragm and the positive pole single piece are wound, so that the negative pole single piece, the second diaphragm and the positive pole single piece are more compactly and neatly connected with the diaphragm in the winding process, the conductivity is improved, the performance of manufactured batteries is improved, the service life of the manufactured batteries is prolonged, the structure of the winding device 14 is simple, the failure rate of machinery is reduced, and the production efficiency is improved.

Preferably, hot melt adhesive is applied to the upper surfaces of the positive and negative electrode sheets by a glue applicator 11.

Preferably, in the step (6), during the process of conveying the first diaphragm, the negative single sheet, the second diaphragm and the positive single sheet, the first diaphragm, the negative single sheet, the second diaphragm and the positive single sheet are respectively subjected to electrostatic electret treatment.

Preferably, the first diaphragm, the negative single sheet, the second diaphragm and the positive single sheet are respectively subjected to electrostatic electret treatment by the first electrostatic electret generator 121, the second electrostatic electret generator 122, the third electrostatic electret generator 123 and the fourth electrostatic electret generator 124, so that the first diaphragm, the negative single sheet, the second diaphragm and the positive single sheet are electrostatically charged and mutually repel without interference in the conveying process.

Preferably, the first clamping portion 1411 of the winding device 14 clamps the first separator, the single negative electrode sheet, the second separator and the single positive electrode sheet, the first moving driving device 1414 drives the first clamping portion 1411 to elongate the first separator, the single negative electrode sheet, the second separator and the single positive electrode sheet to a required winding length, the heating device 13 heats the single positive electrode sheet and the single negative electrode sheet to melt the hot melt adhesive during the process of pulling each layer, the second clamping portion 1412 clamps the tail ends of the first separator, the single negative electrode sheet, the second separator and the single positive electrode sheet, the first cutting portion 1413 cuts each layer, the first moving driving device 1414 drives the first clamping portion 1411 to move into the first limiting groove and the second limiting groove of the auxiliary winding member 1421, the first separator, the single negative electrode sheet, the second separator and the single positive electrode sheet are firstly contacted with the auxiliary winding member 1421 to lead out static electricity, the first rotating driving device 1416 drives the first clamping portion 1411 to rotate to wind each layer, the second moving driving device 1417 drives the second clamping portion 1412 to gradually approach the first clamping portion 1411 to match the first clamping portion 1411 to complete the winding operation, the hot melt adhesive on the positive single piece and the negative single piece adheres to the second diaphragm and the first diaphragm during the winding process, so that the connection is more compact and neat, after the winding is completed, the tape supplying portion 1431 outputs a termination adhesive tape, the vacuum suction head of the first suction portion 1432 sucks the termination adhesive tape, the second cutting portion 1433 cuts the termination adhesive tape after the vacuum suction head sucks the termination adhesive tape, the first lifting driving device drives the vacuum suction head to move downwards to match the first rotating driving device 1416, so that the termination adhesive tape is adhered to the tail ends of the first diaphragm, the negative single piece, the second diaphragm and the positive single piece to form a battery cell, the first telescopic driving device 1415 drives the first clamping portion 1411 to move backwards to extend out of the battery cell, and the auxiliary conveyor belt 1422 drives the auxiliary winding member 1421 and the battery cell to convey forwards, the winding device 14 performs a second winding operation.

Preferably, in step (7), the battery cells are assembled by the assembling device 2.

Preferably, the first clamping device 21 clamps the electric core on the auxiliary winding part 1421 and places the electric core in the housing of the first conveying device 22, the second clamping device 231 clamps the housing, the first welding device 232 welds the bottom of the housing and the joint of the lower gasket, the welding is continued to convey the electric core forward, the clamping part 241 of the gasket supply device 24 fixes the housing, the gasket output part 243 outputs the upper gasket into the opening at the upper end of the housing, the fourth telescopic driving device of the rolling groove device 25 drives the rolling groove disk 251 to move to contact with the outer circumferential surface of the housing for rolling groove processing, the housing is clamped by the third clamping device 2622 and placed in the bearing disk 2621 one by one, the first conveying belt 2623 conveys the bearing disk 2621, the fourth clamping device 2624 clamps the bearing disk 2621 in the first baking cavity 2612 for baking processing, the third conveying device 263 conveys the housing to the sixth clamping device 271, the sixth gripping device 271 grips the housing inside the carrier tray 2621 and places the housing on the fourth transporting device 272, the seventh adsorption part 2731 adsorbs the housing, and the electrolyte injection part 2734 injects the electrolyte into the housing.

Preferably, the positive electrode coating material and the negative electrode coating material are prepared before step (1).

Preferably, the positive electrode paint or the negative electrode paint is prepared by the glue making mechanism 41; placing part of the positive electrode raw material into a first homogenizing device 411 and stirring to form a first positive electrode mixture, placing the other part of the positive electrode raw material into a second homogenizing device 412 and stirring to form a second positive electrode mixture, and introducing the first positive electrode mixture and the second positive electrode mixture into a third homogenizing device 413 to form a positive electrode coating; or a part of the negative electrode raw material is put into the first homogenizing device 411 and stirred to form a first negative electrode mixture, the other part of the negative electrode raw material is put into the second homogenizing device 412 and stirred to form a second negative electrode mixture, and the first negative electrode mixture and the second negative electrode mixture are led into the third homogenizing device 413 to form the negative electrode coating.

Preferably, in step (1), the positive electrode coating is sprayed on the foil by the spraying device 422 of the coating mechanism 42 to form a positive electrode plate, or the negative electrode coating is sprayed on the foil to form a negative electrode plate.

Preferably, in the step (2), the positive electrode plate or the negative electrode plate is dried by the drying mechanism 43; the positive electrode plate or the negative electrode plate enters from the opening of the drying part 431, and the hot air blower outputs hot air to the upper surface of the positive electrode plate or the negative electrode plate to dry the positive electrode plate or the negative electrode plate.

Preferably, in step (3), the rolling mechanism 44 rolls the positive or negative electrode sheet, and the positive or negative electrode sheet passes through between the first rolling roller 441 and the second rolling roller 442, so that the coating on the foil is better attached to the foil, and the connection between the foil and the coating is tighter.

Preferably, in the step (4), the positive electrode pole piece or the negative electrode pole piece is slit by the slitting mechanism 32 of the slitting device 3, and the slit positive electrode single piece or negative electrode single piece is wound by the winding mechanism 33.

Preferably, the plurality of cutting devices 34 equally cut the pole pieces, the first cutting portion 341 and the second cutting portion 342 of the cutting device 34 cut the pole pieces, the winding device 36 of the winding mechanism 33 winds the negative pole single pieces or the positive pole single pieces, and the first winding disc 3612 and the second winding disc 3622 correspond to the respective negative pole single pieces or the respective positive pole single pieces and wind the negative pole single pieces and the positive pole single pieces.

Preferably, in the step (5), the wound positive electrode single pieces and negative electrode single pieces are subjected to baking treatment by the second baking mechanism 37; and placing the positive single pieces or the negative single pieces on the first winding disc 3612 and the second winding disc 3622 into a second baking part for baking.

The product form of the present invention is not limited to the embodiments and examples shown in the present application, and any suitable changes or modifications of the similar ideas should be made without departing from the patent scope of the present invention.

Claims

1. A high-efficiency and high-performance polar plate formation device comprises a forming device for winding a single polar plate and a diaphragm to form a battery cell and an assembling device for assembling the battery cell; the method is characterized in that: the forming device comprises a glue applying device for applying glue to the upper surface of the pole piece, an electrostatic electret device for performing electrostatic electret treatment on each layer of the battery cell, a heating device for heating the positive single piece and the negative single piece, and a winding device for winding the first diaphragm, the negative single piece, the second diaphragm and the positive single piece together to form the battery cell; the winding device comprises a winding part for winding the first diaphragm, the negative single sheet, the second diaphragm and the positive single sheet, an auxiliary part for assisting the winding of the winding part, and a rubberizing part for pasting a stop gum on the wound battery cell.

2. A high efficiency high performance plate polarization equipment according to claim 1, characterized by: the winding part comprises a first clamping part and a second clamping part which clamp the first diaphragm, the negative single sheet, the second diaphragm and the positive single sheet, and a first cutting part which cuts off the first diaphragm, the negative single sheet, the second diaphragm and the positive single sheet.

3. A high efficiency high performance plate polarization equipment according to claim 2, characterized in that: the first clamping part comprises a first clamping rod, a second clamping rod and a first opening and closing driving device for driving the first clamping rod and the second clamping rod to open and close; the second clamping part comprises a third clamping rod, a fourth clamping rod and a second opening and closing driving device for driving the third clamping rod and the fourth clamping rod to open and close.

4. A high efficiency high performance plate polarization equipment according to claim 3, characterized in that: the winding part further comprises a first moving driving device for driving the first clamping part to move, a first telescopic driving device for driving the first clamping part to stretch, a first rotary driving device for driving the first clamping part to rotate, a second moving driving device for driving the second clamping part to move, and a second telescopic driving device for driving the second clamping part to stretch.

5. The efficient high-performance plate polarization equipment of claim 4, wherein: the first cutting part comprises a first upper cutter, a first lower cutter and a third opening and closing driving device for driving the upper cutter and the lower cutter to open and close.

6. The efficient high-performance plate polarization equipment of claim 5, wherein: the auxiliary portion includes an auxiliary winding member; the auxiliary winding piece comprises a first connecting plate, a second connecting plate and a third connecting plate which are sequentially and adjacently arranged; and a first limiting winding groove is formed on one side of the first connecting plate, a second limiting winding groove is formed on one side of the third connecting plate, and the distance between the first connecting plate and the third connecting plate is smaller than the width dimension of the negative pole single piece.

7. The efficient high-performance plate polarization equipment of claim 6, wherein: the first limiting winding groove comprises a first extending section and a first arc-shaped winding section; the second limiting winding groove comprises a second extending section and a second arc-shaped winding section.

8. A high efficiency high performance plate polarization equipment according to claim 7, characterized by: the auxiliary part also comprises an auxiliary conveying belt for conveying the auxiliary winding piece; the auxiliary winding part is fixedly connected to the auxiliary conveying belt.

9. A high efficiency high performance plate polarization equipment according to claim 8, characterized by: the tape attaching part includes a tape supplying part for supplying the termination tape roll, a first adsorbing part for adsorbing the termination tape roll, and a second cutting part for cutting the termination tape roll.

10. A high efficiency high performance plate polarization forming apparatus according to claim 9, wherein: the first adsorption part comprises a vacuum adsorption head for adsorbing the termination adhesive tape roll; and an arc-shaped adsorption groove matched with the outer circumferential surface of the battery core is formed on the lower surface of the vacuum adsorption head.