CN210052801U - Lamination device - Google Patents

Abstract

The utility model discloses a lamination device, which comprises a first conveying mechanism, a second conveying mechanism and a laminating mechanism, wherein the first conveying mechanism can provide a first pole piece unit with a preset size; the packaging mechanism is used for clamping the first pole piece unit between the isolation films; the cutting mechanism is arranged at the downstream of the packaging mechanism, can be connected with the isolating film and is used for cutting the isolating film into isolating film units with preset sizes; the second conveying mechanism is arranged at the upstream of the cutting mechanism and can provide a second pole piece unit with a preset size; the composite mechanism is arranged at the downstream of the second conveying mechanism, can penetrate through the composite mechanism to the cutting mechanism and can connect the second pole piece unit to the surface of the isolating film, which is far away from the first pole piece unit; and the lamination mechanism is arranged at the downstream of the cutting mechanism and can be used for laminating the isolating membrane units, wherein each isolating membrane unit is connected with the first pole piece unit and the second pole piece unit. The utility model provides a lamination equipment can improve lamination efficiency, and area is little, is favorable to the manufacturing of lamination electricity core.

Description

Lamination device

Technical Field

The utility model relates to an energy storage production facility technical field especially relates to a lamination equipment.

Background

At present, laminated cells have the advantages of high rate and high energy density relative to winding cells, and can be manufactured into various special-shaped batteries according to different requirements, so that the laminated cells are generally adopted in the industry to manufacture the batteries.

Traditional lamination equipment, the die-cut shaping of pole piece is earlier with pole piece die-cut machine and adorn on the magazine, transfer the pole piece to the lamination machine after filling up a magazine on, carry out the lamination through the lamination platform, the lamination platform adopts linear motion mode superpose pole piece usually, specifically, in the production process of lamination electricity core, with the position that the lamination platform translation was to positive pole piece place earlier, in order to carry out the superpose of positive pole piece, after positive pole piece finished the stack, with the position that the lamination platform linear motion was to negative pole piece place again, carry out the superpose of negative pole piece again, such lamination mode has the defect such as lamination inefficiency and area is big, be unfavorable for the production manufacturing of lamination electricity core.

Therefore, a new lamination device is needed.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a lamination equipment can improve lamination efficiency, reduces area, is favorable to the manufacturing of lamination electricity core.

In one aspect, according to the embodiment of the utility model provides a lamination equipment is proposed, include: the first conveying mechanism can provide a first pole piece unit with a preset size; the packaging mechanism is arranged at the downstream of the first conveying mechanism and used for clamping the first pole piece unit between the isolation films; the cutting mechanism is arranged at the downstream of the packaging mechanism and can be connected with the isolating film, and the cutting mechanism is used for cutting the isolating film into isolating film units with preset sizes; the second conveying mechanism is arranged at the upstream of the cutting mechanism and can provide a second diode unit with a preset size; the composite mechanism is arranged at the downstream of the second conveying mechanism, the isolating film can penetrate through the composite mechanism to the cutting mechanism, and the composite mechanism can connect the second pole piece unit to the surface of the isolating film, which is far away from the first pole piece unit; and the lamination mechanism is arranged at the downstream of the cutting mechanism and can be used for laminating the isolating membrane units, wherein each isolating membrane unit is connected with the first pole piece unit and the second pole piece unit.

According to the utility model discloses an aspect, lamination equipment further includes laminating mechanism, and laminating mechanism sets up in packaging mechanism upper reaches, and laminating mechanism can make first pole piece unit connection in barrier film.

According to the utility model discloses an aspect, laminating mechanism includes static electricity device or rubber coating device.

According to an aspect of an embodiment of the present invention, the lamination device further comprises a dust removal mechanism; a dust removal mechanism is arranged between the first conveying mechanism and the packaging mechanism to clean the first pole piece unit; and/or a dust removal mechanism is arranged between the second conveying mechanism and the compound mechanism to clean the second pole piece unit.

According to the utility model discloses an aspect, dust removal mechanism includes belt brush and dust extraction, and first pole piece unit or second pole piece unit can be carried to the belt brush to the dust on first pole piece unit or the second pole piece unit can be peeled off to the belt brush, and dust extraction suction and recovery dust.

According to an aspect of the embodiment of the present invention, the first conveying mechanism includes: a first unwinding device; the first cutting device is arranged at the downstream of the first unreeling device; the first deviation correcting device is positioned between the first unreeling device and the first cutting device; and first deviation correcting device can adjust first pole piece and be located first cutting device's cutting range, and first cutting device can cut into a plurality of first pole piece units with first pole piece.

According to an aspect of the embodiment of the present invention, the second conveying mechanism includes: a second unwinding device; the second cutting device is arranged at the downstream of the second unreeling device; the second deviation correcting device is positioned between the second unreeling device and the second cutting device; and the second deviation correcting device can adjust that the second diode is located the cutting scope of second cutting device, and second cutting device can cut the second diode into a plurality of second diode units.

According to an aspect of the embodiment of the present invention, the number of the second conveying mechanisms is two or more, and any two second conveying mechanisms are oppositely disposed at two sides of the packaging mechanism; and/or the number of the first conveying mechanisms is more than two, and any two first conveying mechanisms are arranged oppositely.

According to the utility model discloses an aspect, lamination equipment further includes barrier film conveying mechanism, and barrier film conveying mechanism sets up between first conveying mechanism and packaging mechanism, and barrier film conveying mechanism includes at least a set of barrier film conveyor who uses in pairs.

According to the utility model discloses an aspect, packaging mechanism includes guiding device and sealing device, and two barrier films can be received to guiding device, and sealing device has the heat-seal head, and the heat-seal head can be according to presetting interval heat-seal barrier film to make the fixed centre gripping of first pole piece unit between two barrier films.

According to the utility model discloses an aspect, sealing device is provided with the heat-seal head including the heat-seal roller that uses in pairs on the outer peripheral face of heat-seal roller, and two heat-seal rollers that use in pairs can rotate in step and respective heat-seal head can dock each other along with heat-seal roller pivoted in-process.

According to an aspect of the embodiment of the present invention, the guiding device is disposed between the first conveying mechanism and the second conveying mechanism, the guiding device includes a plurality of sets of guiding rollers, the plurality of sets of guiding rollers are disposed along the interval, each set of guiding rollers includes a pair of clamping rollers, the clamping rollers are used for clamping the transportation isolation film, and the heat sealing device is disposed at the upstream, downstream, or between any two sets of guiding rollers of the guiding device; or the guide device comprises transmission assemblies used in pairs, each transmission assembly comprises a transmission wheel and a transmission belt in transmission fit with the transmission wheel, the transmission belts of the two transmission assemblies in the same pair are at least partially arranged in parallel and can jointly clamp and convey the isolating film, and the heat sealing device is arranged at the upstream or the downstream of the guide device.

According to the utility model discloses an aspect, compound mechanism includes hot pressing plate group, and hot pressing plate group is including relative first hot pressing plate and the second hot pressing plate that sets up, and is gapped between first hot pressing plate and the second hot pressing plate to the barrier film that supplies to be connected with first pole piece unit and second pole piece unit passes through.

According to the utility model discloses an aspect, compound mechanism further includes protective assembly, and first hot pressboard and second hot pressboard correspond respectively and are provided with protective assembly, protective assembly include the protecting band and with protecting band drive fit's guide pulley, every protective assembly's protecting band at least part extend into the clearance.

According to the utility model discloses an aspect, lamination mechanism includes interconnect's transfer device and adsorption equipment, and adsorption equipment can adsorb or release the barrier film unit, and transfer device can drive adsorption equipment according to predetermined orbit reciprocating motion.

According to the laminating device provided by the embodiment of the utility model, the first pole piece unit can be provided through the first conveying mechanism, the first pole piece unit can be clamped between the isolating films through the packaging mechanism, the second conveying mechanism can provide the second pole piece unit with the preset size to the surface of the isolating film far away from the first pole piece unit, the composite mechanism is arranged at the downstream of the second conveying mechanism, the isolating membrane passes through the composite mechanism to the lamination mechanism, so that the compound mechanism can receive the second pole piece unit and connect the second pole piece unit to the surface of the isolating film far away from the first pole piece unit, the tail end of the isolating film is connected to the cutting mechanism, the release film is cut into release film units of a predetermined size by a cutting mechanism, a lamination mechanism is disposed downstream of the cutting mechanism, a plurality of isolating membrane units with preset sizes and connected with the first pole piece unit and the second pole piece unit are overlapped through a lamination mechanism, and then a laminated battery core can be formed. The lamination mechanism can meet the lamination requirement without reciprocating transfer, the lamination efficiency is high, the occupied area of the whole lamination equipment is small, the production and the manufacture of a lamination battery cell are facilitated, and the lamination mechanism can effectively avoid the situation that a plurality of pole pieces are stacked between two isolation films by stacking a single isolation film unit.

Drawings

Features, advantages and technical effects of exemplary embodiments of the present invention will be described below with reference to the accompanying drawings.

Fig. 1 is a schematic structural view of a lamination apparatus according to an embodiment of the present invention;

fig. 2 is a schematic diagram of a lamination apparatus according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a first conveying mechanism according to an embodiment of the present invention;

fig. 4 is a schematic structural view of a packaging mechanism according to an embodiment of the present invention;

fig. 5 is a schematic structural view of a second conveying mechanism according to an embodiment of the present invention;

fig. 6 is a schematic diagram of a lamination apparatus according to another embodiment of the present invention;

fig. 7 is a schematic structural diagram of a compound mechanism according to an embodiment of the present invention;

fig. 8 is a schematic structural view of a lamination apparatus according to yet another embodiment of the present invention;

fig. 9 is a schematic structural view of a lamination apparatus according to yet another embodiment of the present invention;

fig. 10 is a schematic view of the structure of the guide device of fig. 9.

Wherein:

1-a first conveying mechanism; 11-a first unwinding device; 12-a first cutting device; 13-a first deviation rectification device; 14-a first drive wheel; 15-a first guide roller;

2-a packaging mechanism; 21-a heat sealing device; 211-heat sealing roller; 212-heat sealing; 22-a guide device; 221-a guide roller set; 23-a transmission assembly; 231-a transmission wheel; 232-a transmission belt;

3-an isolating membrane conveying mechanism; 31-an isolating membrane conveying device;

4-a dust removal mechanism; 41-belt brush; 42-a dust extraction device;

5, a fitting mechanism; 51-a static electric device; 52-a gluing device;

6-a second conveying mechanism; 61-a second unwinding device; 62-a second cutting device; 63-a second deviation correcting device; 64-a second drive wheel; 65-a second guide roller;

7-a compound mechanism; 71-hot pressing plate group; 711-first hot press plate; 712-a second hot press plate; 713-gap; 72-a guard assembly; 721-protective tape; 722-a guide wheel; 73-a clamping guide; 731-a pulling roll; 732-a traction belt;

8-a cutting mechanism;

9-a lamination mechanism; 91-a transfer device; 92-an adsorption device;

20-a barrier film; 201-input terminal; 202-end;

30-a first pole piece; 301-a first pole piece unit;

40-a second pole piece; 401-second pole piece unit;

50a, 50b, 50 c-lamination unit.

In the drawings, like parts are provided with like reference numerals. The figures are not drawn to scale.

Detailed Description

Features and exemplary embodiments of various aspects of the present invention will be described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the invention by illustrating examples of the invention. In the drawings and the following description, at least some well-known structures and techniques have not been shown in detail in order to avoid unnecessarily obscuring the present invention; also, the dimensions of some of the structures may be exaggerated for clarity. Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

The directional terms appearing in the following description are directions as shown in the drawings and are not intended to limit the specific structure of the lamination apparatus of the present invention. In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "mounted" and "connected" are to be interpreted broadly, e.g., as either a fixed connection, a removable connection, or an integral connection; can be directly connected or indirectly connected. The specific meaning of the above terms in the present invention can be understood as the case may be, by those of ordinary skill in the art.

For a better understanding of the present invention, a lamination device according to an embodiment of the present invention will be described in detail below with reference to fig. 1 to 10.

Referring to fig. 1, fig. 1 is a schematic structural diagram of a lamination device according to an embodiment of the present invention, and fig. 2 is a schematic diagram of the lamination device according to an embodiment of the present invention.

The embodiment of the utility model provides a lamination equipment, including first conveying mechanism 1, packaging mechanism 2, cutting mechanism 8, lamination mechanism 9, second conveying mechanism 6 and combined mechanism 7. The first transport mechanism 1 is capable of providing a first pole piece unit 301 of a predetermined size. The encapsulating mechanism 2 is disposed downstream of the first conveying mechanism 1, and the encapsulating mechanism 2 is configured to clamp the first pole piece unit 301 between the isolation films 20 to form a half-encapsulated unit. The cutting mechanism 8 is arranged 8 downstream of the packaging mechanism 2 and can be connected with the isolation film 20, and the cutting mechanism 8 cuts the isolation film 20 into isolation film units with preset sizes.

The second conveyance mechanism 6 is provided upstream of the cutting mechanism 8, and the second conveyance mechanism 6 can provide the second diode unit 401 in a predetermined size. The combining mechanism 7 is arranged at the downstream of the second conveying mechanism 6, the isolation film 20 can penetrate through the combining mechanism 7 to the cutting mechanism 8, and the combining mechanism 7 can connect the second pole piece unit 401 to the surface of the isolation film 20 far away from the first pole piece unit 301. A lamination mechanism 9 is provided downstream of the cutting mechanism 8, the lamination mechanism 9 being capable of laminating a plurality of separator units of a predetermined size, each of which has a first pole piece unit 301 and a second pole piece unit 401 attached thereto.

It should be noted that, in the present invention, the references to "upstream" and "downstream" above and below refer to the sequence of the laminated cell production sequence, and do not limit the spatial position between the components.

In some optional embodiments, when the lamination device provided by the present invention is in use, the input end 201 of the isolation film 20 may be located between the first conveying mechanism 1 and the packaging mechanism 2, so as to facilitate connection between the isolation film 20 and the first pole piece unit 301. Alternatively, the end 202 of the separator 20 may be connected to the cutting mechanism 8 so that the cutting mechanism 8 cuts the separator 20 into separator units of a predetermined size.

It is understood that the first conveying mechanism 1 may be one of an anode conveying mechanism that conveys the anode sheet and a cathode conveying mechanism that conveys the cathode sheet, and the second conveying mechanism 2 may be the other of the anode conveying mechanism and the cathode conveying mechanism. In the embodiment of the present invention, the first conveying mechanism 1 is taken as an anode conveying mechanism, and the second conveying mechanism is taken as a cathode conveying mechanism.

The embodiment of the utility model provides a lamination equipment, carry out the superpose through producing a plurality of predetermined dimension's barrier film unit and through lamination mechanism 9 with barrier film unit and first pole piece unit 301 and the second pole piece unit 401 of connection on the barrier film unit, therefore, lamination mechanism need not reciprocal transfer and can satisfy the lamination requirement, can improve lamination efficiency, reduce area, be favorable to the manufacturing of lamination electricity core, lamination mechanism 9 superposes single barrier film unit simultaneously and can avoid the condition of folding polylith pole piece between two barrier films 20.

Referring to fig. 3, fig. 3 is a schematic structural diagram of the first conveying mechanism 1 according to the embodiment of the present invention. The embodiment of the utility model provides a first conveying mechanism 1 includes first unwinding device 11, first cutting device 12 and first deviation correcting device 13, first unwinding device 11 can release first pole piece 30, first cutting device 12 sets up in first unwinding device 11 downstream, first deviation correcting device 13 is located between first unwinding device 11 and the first cutting device 12, and first deviation correcting device 13 can adjust that first pole piece 30 is located the cutting within range of first cutting device 12, first cutting device 12 can cut first pole piece 30 into a plurality of first pole piece units 301. It should be noted that "the first deviation rectifying device 13 is located between the first unwinding device 11 and the first cutting device 12" means that, in the laminated cell production process, the first pole piece 30 passes through the first unwinding device 11, the first deviation rectifying device 13 and the first cutting device 12 in sequence, and the spatial position between each component is not limited.

In specific implementation, the first unwinding device 11 may include a first unwinding roller and a driving component for driving the first unwinding roller to perform a rotation motion, the first pole piece 30 is wound on the first unwinding roller, and the first pole piece 30 is released by rotation of the first unwinding roller. The first deviation correcting device 13 can monitor whether the first pole piece 30 is within a predetermined range of the first deviation correcting device 13 in real time through the detecting device or at a certain time interval, if not, the position of the first pole piece 30 needs to be adjusted, and then the first pole piece 30 is ensured to be within the cutting range of the first cutting device 12 all the time. The first cutting device 12 can be used for laser cutting or metal cutting, and if a metal cutter is used for cutting, a cam mechanism can be designed, so that the cutting efficiency can be ensured through the continuous rotation of the motor.

Meanwhile, in order to facilitate that the first pole piece 30 can be conveyed to the first cutting device 12 at a uniform speed and conveniently, optionally, a first driving wheel 14 is further arranged between the first deviation correcting device 13 and the first cutting device 12, and the first driving wheel 14 can be driven by a motor to provide power for the movement of the first pole piece 30. In addition, in order to enable the first pole piece 30 to be conveyed to the first cutting device 12 according to a preset track, first guide rollers 15 are respectively arranged between the first unwinding device 11 and the first deviation correcting device 13 and between the first deviation correcting device 13 and the first cutting device 12, a traveling route of the first pole piece 30 is changed through the first guide rollers 15, so that the production requirement of the first pole piece unit 301 is met, meanwhile, the first pole piece 30 can be tensioned through the first guide rollers 15, and friction or damage between the first pole pieces 30 is prevented.

Referring to fig. 1 to fig. 3, in an optional embodiment, the lamination apparatus provided in the embodiment of the present invention further includes a bonding mechanism 5, the bonding mechanism 5 is disposed between the input end 201 of the isolation film 20 and the packaging mechanism 2, and the bonding mechanism 5 connects the first pole piece unit 301 to the isolation film 20.

In some optional examples, the attaching mechanism 5 may include the electrostatic device 51, and in this case, the first conveying device 1 may be an anode conveying device, and accordingly, the first pole piece unit 301 is an anode unit. Because the isolating membrane 20 close to one side of the first pole piece 30 is made of the PE material, the electric charges can be carried, and the electric charges are released to the isolating membrane 20 through the electrostatic device 51 to carry the static electricity, so that the purpose of directly adhering the first pole piece unit 301 can be better achieved when the first pole piece unit 301 is sent to the isolating membrane 20.

Of course, in some other examples, the applying mechanism 5 may also include a glue applying device 52, in which case the first conveying device 1 may be either an anode conveying device or a cathode conveying device, and accordingly, the glue applying device 52 applies glue to the surface of the first pole piece unit 301 to adhere the first pole piece unit 301 to the separation film 20, which can also achieve the purpose of connecting the first pole piece unit 301 with the separation film 20.

As an optional implementation manner, the lamination device provided in each of the above embodiments of the present invention further includes a dust removing mechanism 4, and the dust removing mechanism 4 may include a belt brush 41 and a dust suction device 42. In order to facilitate dust removal of the first cut pole piece unit 301, a dust removal mechanism 4 is optionally disposed between the first conveying mechanism 1 and the packaging mechanism 2 to clean the first pole piece unit 301. Specifically, one end of the dust removing mechanism 4 faces the first cutting device 12, and the other end faces the packaging mechanism 2, the dust removing mechanism 4 is specifically located upstream of the input end 201 of the isolation film 20, the first pole piece unit 301 cut by the first cutting device 12 falls to the belt brush 41 of the dust removing mechanism 4, and the first pole piece 30 can be conveyed to the direction of the packaging mechanism 2 through the belt brush 41 and is connected to the isolation film 20. In the conveying process, the dust on the first pole piece unit 301 can be stripped through the belt brush 41 and sucked and recovered through the dust suction device 42, so that the first pole piece unit 301 connected to the isolation film 20 is ensured to be clean, and the produced laminated battery cell can better meet the electrical property requirement.

As an optional implementation manner, the embodiment of the present invention provides a lamination equipment further includes barrier film conveying mechanism 3, barrier film conveying mechanism 3 sets up between first conveying mechanism 1 and packaging mechanism 2, further lies in between first cutting device 12 and the packaging mechanism 2, when lamination equipment includes dust removal mechanism 4 that is used for removing dust to first pole piece unit 301, barrier film conveying mechanism 3 lies in this dust removal mechanism 4's low reaches, barrier film conveying mechanism 3 includes at least a set of barrier film conveying device 31 that uses in pairs. Alternatively, each separator transport device 31 is capable of releasing the separator 20.

In some optional examples, the present invention may provide the barrier film conveying mechanism 3, which may include a set of barrier film conveying devices 31 arranged in pairs, and two barrier film conveying devices 31 in pairs are arranged on two opposite sides of the packaging mechanism 2. Each isolating film conveying device 31 comprises an isolating film unwinding roller and a driving part for driving the isolating film unwinding roller to do rotary motion, the isolating film 20 is wound on the isolating film unwinding roller, and the isolating film 20 is released through the rotation of the isolating film unwinding roller.

In order to enable the first pole piece unit 301 to be attached to the isolation film 20 better, optionally, the attaching device 5 is disposed near the isolation film 20, when the lamination device includes the dust removal mechanism 4 for removing dust from the first pole piece 30, the attaching device 5 may be specifically disposed between the dust removal mechanism 4 and the input end 201 of the isolation film 20, the dust on the surface of the first pole piece 30 is removed through the dust removal mechanism 4, the stability of the attaching mechanism 4 for connecting the first pole piece unit 301 to the isolation film 20 can be improved, and the connection efficiency is improved.

Referring to fig. 4, fig. 4 is a schematic structural diagram of a packaging mechanism 2 according to an embodiment of the present invention. Optionally, the packaging mechanism 2 comprises a guiding device 22 and a heat sealing device 21, the guiding device 22 can receive the two isolation films 20, and optionally, the two isolation films 20 can be released by any isolation film conveying device 31. The heat sealing device 21 has a heat seal head 212, and the heat seal head 212 can heat seal the two isolation films 20 at a preset interval, so that the first pole piece unit 301 is fixedly clamped between the two isolation films 20.

By arranging the packaging mechanism 2 and limiting the packaging mechanism to comprise the structure, the first pole piece unit 301 can be better sealed inside the two isolation films 20, the purpose that the first pole piece unit 301 does not displace in the movement process is achieved, and the relative position of the first pole piece unit 301 between the two isolation films 20 is further ensured. For example, when the bonding apparatus 5 includes the electrostatic device 51, by providing the packaging mechanism 2 and limiting the packaging mechanism to include the above-described structure, even if static electricity gradually disappears with time, the position of the first pole piece unit 301 can be ensured, and a double insurance is provided for the position assurance of the first pole piece unit 301.

Optionally, the guiding device 22 is disposed between the first conveying mechanism 1 and the second conveying mechanism 6, the guiding device 22 may include a plurality of sets of guiding roller sets 221, the plurality of sets of guiding roller sets 221 are disposed at intervals, in some optional embodiments, the plurality of sets of guiding roller sets 221 may be disposed at intervals along the arrangement direction of the barrier film conveying mechanism 3 and the composite mechanism 7, the number of sets of guiding roller sets 221 may be determined according to the requirement of the production line, as long as the guiding effect during transportation of the barrier film 20 holding the first pole piece unit 301 can be satisfied. Each set of guide rollers 221 includes a pair of nip rollers for nipping and transporting the separator 20, and the heat seal device 21 is disposed between any two sets of guide rollers 221, however, in some other examples, the heat seal device 21 may be disposed upstream of the guide device 22, such as between the input end 101 of the separator and the guide device 22, or the heat seal device 21 may be disposed downstream of the guide device 22, such as between the guide device 22 and the second conveying mechanism 6, or between the combining mechanism 7 and the cutting mechanism 8. Through the arrangement, the transportation of the semi-packaging unit can be better satisfied, and the relative position of the first pole piece unit 301 and the isolation film 20 can be better fixed.

In some optional examples, the heat sealing device 21 includes two heat sealing rollers 211 used in pairs, a heat sealing head 212 is disposed on an outer circumferential surface of the heat sealing roller 211, the two heat sealing rollers 211 used in pairs can rotate synchronously, the respective heat sealing heads 212 can butt against each other in the process of rotating with the heat sealing rollers 211, and the two heat sealing rollers 211 used in pairs can be driven by a servo motor. The heat sealing device 21 in this form has a simple structure, is easy to control, and can meet the requirement for sealing between the first pole piece unit 301 and the isolation film 20.

Referring to fig. 5, fig. 5 is a schematic structural diagram of the second conveying mechanism 6 according to the embodiment of the present invention. The embodiment of the utility model provides a lamination equipment, its second conveying mechanism 6 includes second unwinding device 61, second cutting device 62 and second deviation correcting device 63, second unwinding device 61 can release second pole piece 40, second cutting device 62 sets up in second unwinding device 61 low reaches, second deviation correcting device 63 is located between second unwinding device 61 and the second cutting device 62, and second deviation correcting device 63 can adjust second pole piece 40 and be located second cutting device 62's cutting range, second cutting device 62 can cut second pole piece 40 into a plurality of second pole piece units 401. It should be noted that the phrase "the second deviation rectifying device 63 is located between the second unwinding device 61 and the second cutting device 62" means that, in the process of producing a battery cell, the second pole piece 40 passes through the second unwinding device 61, the second deviation rectifying device 63, and the second cutting device 62 in sequence, and the spatial positions of the components are not limited.

In a specific implementation, the second unwinding device 61 may include a second unwinding roller and a driving component for driving the second unwinding roller to rotate, the second pole piece 40 is wound on the second unwinding roller, and the second pole piece 40 is released by rotation of the second unwinding roller. The second deviation correcting device 63 can monitor in real time or at a certain time interval through the detecting device whether the second pole piece 40 is within a predetermined range of the second deviation correcting device 63, if not, the position of the second pole piece 40 needs to be adjusted, and then the second pole piece 40 is ensured to be within the cutting range of the second cutting device 62 all the time. The second cutting device 62 can also be used for laser cutting or metal cutting, for example, if a metal cutter is used for cutting, a cam mechanism can be designed, and the cutting efficiency can be ensured through the continuous rotation of the motor.

Meanwhile, in order to facilitate the uniform and convenient transportation of the second pole piece 40 to the second cutting device 62, optionally, a second driving wheel 64 is further arranged between the second deviation rectifying device 63 and the second cutting device 62, and the second driving wheel 64 can be driven by a motor to provide power for the movement of the second pole piece 40. In addition, in order to enable the second pole piece 40 to be conveyed to the second cutting device 62 according to a preset track, second guide rollers 65 are respectively arranged between the second unwinding device 61 and the second deviation correcting device 63 and between the second deviation correcting device 63 and the second cutting device 62, the traveling route of the second pole piece 40 is changed through the second guide rollers 65 so as to meet the production requirement of the second pole piece unit 401, and meanwhile, the second pole piece 40 can be tensioned through the second guide rollers 65 so as to prevent friction or damage between the second pole pieces 40.

In order to facilitate dust removal of the cut second pole piece unit 401, in some alternative examples, a dust removal mechanism 4 is provided between the second conveyance mechanism 6 and the combining mechanism 7 to clean the second pole piece unit 401. Specifically, one end of the dust removing mechanism 4 faces the second cutting device 62, and the other end faces the combining mechanism 7, the second pole piece unit 401 cut by the second cutting device 62 falls to the belt brush 41 of the dust removing mechanism 4, and the second pole piece 40 can be conveyed to the direction of the combining mechanism 7 by the belt brush 41 and is connected to the separating film 20. In the conveying process, the dust on the second diode unit 401 can be stripped through the belt brush 41 and sucked and recovered through the dust suction device 42, so that the second diode unit 401 connected to the isolation film 20 is clean, and the produced laminated battery cell can better meet the electrical requirement of the laminated battery cell.

As an alternative embodiment, in order to better satisfy the formation of the laminated battery cell, the second conveying mechanisms 6 may be used in pairs, and in an alternative embodiment, the laminating apparatus may include a pair of second conveying mechanisms 6, that is, two second conveying mechanisms 6, and the two second conveying mechanisms 6 may be arranged oppositely, for example, may be distributed on two sides of the isolating membrane 20 as shown in the above examples, further, referring to fig. 2, the two second conveying mechanisms 6 are staggered from each other in the arrangement direction from the encapsulating mechanism 2 to the cutting mechanism 8, optionally, the two second conveying mechanisms 6 are staggered from each other by a predetermined size corresponding to one first pole piece unit 301, so that the two second pole piece units 401 conveyed to the half encapsulating unit by the two second conveying mechanisms 6 are staggered from each other, at this time, the cutting mechanism 8 cuts the isolating membrane 20 to form the laminated unit 50a, lamination unit 50a includes one first pole piece unit 301, a predetermined-sized separator unit, and a second pole piece unit 401 that are sequentially stacked in the thickness direction of separator 20.

Referring also to fig. 6, fig. 6 is a schematic diagram of a lamination apparatus according to another embodiment of the present invention. As shown in fig. 6, in some other examples, two second conveying mechanisms 6 may also be symmetrically disposed on two sides of the isolation film 20, so that two second pole piece units 401 conveyed to the half-packaging unit by the two second conveying mechanisms 6 are symmetrically disposed to meet the requirement of disposing laminated cells in different structural forms. The speed or time of supplying the second pole piece unit 401 by controlling the two second conveying mechanisms 6 is controlled such that the second pole piece unit 401 is disposed at intervals on the corresponding separator 20 of the first pole piece unit 301 in the direction of moving the half-packaged unit from the packaging mechanism 2 to the cutting mechanism 8, at this time, the separator 20 is cut by the cutting mechanism 8 to form the lamination unit 50b and the lamination unit 50c at intervals, at this time, the lamination unit 50b includes two second pole piece units 401 disposed oppositely and one first pole piece unit 301 and a predetermined size separator unit disposed between the two second pole piece units 401, and the lamination unit 50c includes a predetermined size separator unit and one first pole piece unit 301 packaged between the predetermined size separator units.

Referring to fig. 7, fig. 7 is a schematic structural diagram of a composite mechanism 7 according to an embodiment of the present invention. The embodiment of the utility model provides a compound mechanism 7 is including setting up in the hot pressing board group 71 of second conveying mechanism 6 low reaches, and hot pressing board group 71 is including relative first hot pressing board 711 and the second hot pressing board 712 that sets up, and gapped 713 is between first hot pressing board 711 and the second hot pressing board 712 to the barrier film 20 that supplies to be connected with first pole piece unit 301 and second pole piece unit 401 passes through. When the second pole piece 40 is a cathode piece, the cathode piece carries a polyvinylidene fluoride (PVDF) adhesive, and the corresponding isolation film 20 is also accompanied by the PVDF adhesive, so that the second pole piece unit 401 can be bonded with the isolation film 20 by a heating and rolling principle through the arrangement of the hot pressing plate group 71, and the purpose of making the second pole piece is achieved.

As an alternative embodiment, the compound mechanism 7 further includes a protection assembly 72 disposed downstream of the second conveying mechanism 6, the first hot press plate 711 and the second hot press plate 712 are respectively and correspondingly provided with a protection assembly 72, the protection assembly 72 includes a protection belt 721 and a guide wheel 722 in driving fit with the protection belt 721, and the protection belt 721 of each protection assembly 72 at least partially extends into the gap 713. By arranging the protective assembly 72, the second diode unit 401 can be protected on the basis of ensuring the heat sealing requirement of the hot-pressing plate group 71 between the second diode unit 401 and the isolation film 20, and the damage to the second diode unit 401 caused by the direct contact of the hot-pressing plate group 71 and the second diode unit 401 is avoided.

Further, in order to ensure that the half-packaged unit to which the second pole piece unit 401 is attached can be kept stable in relative position when being transported to the hot platen group 71, the compound mechanism 7 may optionally further include a clamping guide device 73, and the clamping guide device 73 may be located upstream of the hot platen group 71. The clamping and guiding device 22 may comprise a pulling roll 731 and a pulling belt 732 in driving cooperation with the pulling roll 731 to realize the transportation of the second pole piece unit 401 and the semi-encapsulation unit.

The cutting mechanism 8 can be used for laser cutting or metal cutting, if the metal cutting tool is used for cutting, a cam mechanism can be designed, and the cutting efficiency can be guaranteed through the continuous rotation of the motor.

As an alternative embodiment, the lamination mechanism 9 includes a transfer device 91 and an adsorption device 92 connected to each other, the adsorption device 92 can adsorb or release the lamination units 50a, 50b, and 50c, and the transfer device 91 can drive the adsorption device 92 to reciprocate according to a predetermined track. The plurality of barrier film units are stacked in a reciprocating manner by the lamination mechanism 9, so that the second pole piece units 401 and the first pole piece units 301 connected with the barrier film units are sequentially alternated and separated by the barrier film units to form a laminated battery core.

In some optional examples, the present invention provides a transferring device 91, which may include a mechanical arm and a driving assembly for controlling the mechanical arm to reciprocate along a predetermined trajectory, wherein the mechanical arm is controlled by the driving assembly, so that the mechanical arm transfers the isolated film unit formed by cutting by the cutting mechanism 8. In order to make the barrier film unit move better, the adsorption device 92 comprises a plurality of suckers, the suckers are connected with the air pressure assembly, pressure difference is formed on the suckers by controlling the air pressure assembly to adsorb the barrier film unit, the barrier film unit is convenient to move, and the adsorption device 92 is connected to the transfer device 91, so that the barrier film unit can be effectively protected in the transfer process.

Referring to fig. 8, fig. 8 is a schematic structural diagram of a lamination device according to another embodiment of the present invention. It is understood that the above embodiments are exemplified by the number of the first conveying mechanisms 1, and in some other examples, the number of the first conveying mechanisms 1 may be more than two, wherein two first conveying mechanisms 1 are oppositely arranged. In a specific implementation, two first conveying mechanisms 1 may be included, and the two first conveying mechanisms 1 are oppositely arranged in the thickness direction of the isolation film 20, so as to alternately provide the first pole piece units 30 into the two isolation films 10 of the same group.

Alternatively, when the number of the first conveying mechanisms 1 is more than two, an even number may be used, every two first conveying mechanisms 1 form one group, multiple groups of the first conveying mechanisms 1 may be arranged at intervals in the width direction of the isolation film 20, and each group of the first conveying mechanisms 1 may be used to provide the first pole piece unit 301 for the corresponding isolation film 20. The number of the first conveying mechanisms 1 is set to be more than two, so that the lamination efficiency of the battery cell can be further improved, and when the lamination is specifically implemented, each first conveying mechanism 1 can be correspondingly provided with one dust removal mechanism 4 so as to meet the dust removal requirement of each first pole piece unit 301.

Referring to fig. 9 and 10 together, fig. 9 is a schematic structural view of a lamination apparatus according to still another embodiment of the present invention, and fig. 10 is a schematic structural view of a guiding device in fig. 9. The embodiment of the present invention provides a lamination device, the structural form of the guide device 22 included in the lamination device is not limited to the above embodiments, in some alternative examples, as shown in fig. 9 and 10, the guide device 22 may also include transmission assemblies 23 used in pairs, each transmission assembly 23 includes a transmission wheel 231 and a transmission belt 232 in transmission fit with the transmission wheel 231, and the transmission belts 232 of each pair of transmission assemblies 23 are at least partially arranged in parallel with each other and can jointly clamp and convey the isolation film 20. In the same way, in this example, the heat sealing device 21 mentioned in the above embodiments may be disposed upstream and downstream of the guiding device 22, and the position of the heat sealing device 21 may refer to the description of the above embodiments, and the heat sealing device 21 fixedly clamps the first pole piece unit 301 in the half-sealing unit between the two isolation films 20, and also can meet the requirement for sealing the isolation films 20 and the first pole piece unit 301, which is not repeated herein.

To sum up, the embodiment of the utility model provides a lamination equipment, it can provide first pole piece unit 301 through first conveying mechanism 1, can be with first pole piece unit 301 centre gripping between barrier film 20 through packaging mechanism 2. Second conveyor 6 is capable of providing a predetermined size of second pole piece unit 401 to the surface of the separator away from first pole piece unit 301, and compounding mechanism 7 is disposed downstream of second conveyor 6, with separator 20 passing through compounding mechanism 7 to lamination mechanism 9, such that compounding mechanism 7 is capable of receiving second pole piece unit 401 and attaching second pole piece unit 401 to the surface of separator 20 away from first pole piece unit 301. End 202 of barrier film 20 is connected in cutting mechanism 8, barrier film 20 is cut into predetermined size's barrier film unit through cutting mechanism 8, lamination mechanism 9 sets up in cutting mechanism 8's low reaches, carry out the superpose through lamination mechanism 9 with a plurality of predetermined sizes and the barrier film unit that is connected with first pole piece unit 301 and second pole piece unit 401 and can form the lamination electricity core, lamination mechanism need not reciprocal transfer and can satisfy the lamination requirement, whole production line is more smooth, lamination efficiency is high, and make whole lamination equipment area little, more do benefit to the manufacturing of electricity core, so easily use widely, and lamination mechanism carries out the superpose with single barrier film unit and can effectively avoid folding polylith pole piece condition and produce.

While the invention has been described with reference to a preferred embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict. The present invention is not limited to the particular embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.

Claims (15)

1. A lamination apparatus, comprising:

the first conveying mechanism can provide a first pole piece unit with a preset size;

the packaging mechanism is arranged at the downstream of the first conveying mechanism and used for clamping the first pole piece unit between the isolation films;

the cutting mechanism is arranged at the downstream of the packaging mechanism and can be connected with the isolating film, and the cutting mechanism is used for cutting the isolating film into isolating film units with preset sizes;

a second conveying mechanism disposed upstream of the cutting mechanism, the second conveying mechanism being capable of providing a second diode unit of a predetermined size;

the composite mechanism is arranged at the downstream of the second conveying mechanism, the isolating film can penetrate through the composite mechanism to the cutting mechanism, and the composite mechanism can connect the second pole piece unit to the surface of the isolating film, which is far away from the first pole piece unit;

and the lamination mechanism is arranged at the downstream of the cutting mechanism and can be used for superposing the isolating membrane units, wherein each isolating membrane unit is connected with the first pole piece unit and the second pole piece unit.

2. The lamination apparatus according to claim 1, further comprising a bonding mechanism disposed upstream of the encapsulation mechanism, the bonding mechanism enabling the first pole piece unit to be attached to the barrier film.

3. The lamination apparatus according to claim 2, wherein the conforming mechanism includes an electrostatic device or a glue applicator device.

4. The lamination apparatus according to claim 1, further comprising a dust removal mechanism;

the dust removal mechanism is arranged between the first conveying mechanism and the packaging mechanism so as to clean the first pole piece unit; and/or the dust removal mechanism is arranged between the second conveying mechanism and the compound mechanism so as to clean the second pole piece unit.

5. The lamination apparatus according to claim 4, wherein the dust removing mechanism includes a belt brush capable of conveying the first or second pole piece unit and peeling off dust on the first or second pole piece unit, and a dust suction device that sucks and recovers the dust.

6. The lamination apparatus according to any one of claims 1 to 5, wherein the first conveyance mechanism comprises:

a first unwinding device;

the first cutting device is arranged at the downstream of the first unreeling device;

the first deviation correcting device is positioned between the first unreeling device and the first cutting device;

and the first deviation correcting device can adjust the position of the first pole piece in the cutting range of the first cutting device, and the first cutting device can cut the first pole piece into a plurality of first pole piece units.

7. The lamination apparatus according to any one of claims 1 to 5, wherein the second conveyance mechanism comprises:

a second unwinding device;

the second cutting device is arranged at the downstream of the second unreeling device;

the second deviation correcting device is positioned between the second unreeling device and the second cutting device;

and the second deviation correcting device can adjust the second pole piece to be located in the cutting range of the second cutting device, and the second cutting device can cut the second pole piece into a plurality of second pole piece units.

8. The lamination device according to any one of claims 1 to 5, wherein the number of the second conveying mechanisms is two or more, and any two second conveying mechanisms are oppositely arranged on two sides of the packaging mechanism;

and/or the number of the first conveying mechanisms is more than two, and any two first conveying mechanisms are oppositely arranged.

9. The lamination apparatus according to any one of claims 1 to 5, further comprising a barrier film transfer mechanism disposed between the first transfer mechanism and the encapsulation mechanism, the barrier film transfer mechanism comprising at least one set of barrier film transfer devices used in pairs.

10. The laminating apparatus according to claim 1, wherein said encapsulation mechanism includes a guide device capable of receiving two of said separators and a heat seal device having a heat seal capable of heat sealing said separators at predetermined intervals to fixedly clamp said first pole piece unit between said two separators.

11. The laminating apparatus according to claim 10, wherein said heat-seal device comprises heat-seal rollers which are used in pairs, said heat-seal rollers being provided on outer peripheral surfaces thereof with said heat-seal heads, both said heat-seal rollers which are used in pairs being capable of rotating synchronously and said respective heat-seal heads being capable of abutting each other during rotation with said heat-seal rollers.

12. The lamination apparatus according to claim 10,

the guide device is arranged between the first conveying mechanism and the second conveying mechanism and comprises a plurality of groups of guide roller sets which are arranged at intervals, each group of guide roller sets comprises paired clamping rollers for clamping and conveying the isolating membrane, and the heat sealing device is arranged at the upstream, the downstream or between any two groups of guide roller sets of the guide device;

or the guide device comprises transmission assemblies used in pairs, each transmission assembly comprises a transmission wheel and a transmission belt in transmission fit with the transmission wheel, the transmission belts of the two transmission assemblies in the same pair are at least partially arranged in parallel and can jointly clamp and convey the isolating film, and the heat sealing device is arranged at the upstream or the downstream of the guide device.

13. The lamination device according to any one of claims 1 to 5, wherein the composite mechanism comprises a hot-press plate set, the hot-press plate set comprises a first hot-press plate and a second hot-press plate which are oppositely arranged, and a gap is formed between the first hot-press plate and the second hot-press plate, so that the isolation film connected with the first pole piece unit and the second pole piece unit can pass through the gap.

14. The lamination device according to claim 13, wherein the compound mechanism further comprises a guard assembly, the first and second thermal platens are respectively provided with the guard assembly, the guard assembly comprises a guard belt and a guide wheel in driving fit with the guard belt, and the guard belt of each guard assembly extends at least partially into the gap.

15. The laminating apparatus according to any one of claims 1 to 5, wherein the laminating mechanism includes a transfer device and an adsorption device connected to each other, the adsorption device being capable of adsorbing or releasing the separator units, the transfer device being capable of moving the adsorption device back and forth in accordance with a predetermined trajectory.

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