WO2013128930A1 - 電極体を製造する装置および方法 - Google Patents
電極体を製造する装置および方法 Download PDFInfo
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- WO2013128930A1 WO2013128930A1 PCT/JP2013/001221 JP2013001221W WO2013128930A1 WO 2013128930 A1 WO2013128930 A1 WO 2013128930A1 JP 2013001221 W JP2013001221 W JP 2013001221W WO 2013128930 A1 WO2013128930 A1 WO 2013128930A1
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- wall surface
- separator
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- continuum
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/16—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for manufacturing contact members, e.g. by punching and by bending
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/04—Construction or manufacture in general
- H01M10/0404—Machines for assembling batteries
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/04—Construction or manufacture in general
- H01M10/0459—Cells or batteries with folded separator between plate-like electrodes
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
- H01M10/0583—Construction or manufacture of accumulators with folded construction elements except wound ones, i.e. folded positive or negative electrodes or separators, e.g. with "Z"-shaped electrodes or separators
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49117—Conductor or circuit manufacturing
- Y10T29/49204—Contact or terminal manufacturing
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/53—Means to assemble or disassemble
- Y10T29/5313—Means to assemble electrical device
- Y10T29/532—Conductor
- Y10T29/53204—Electrode
Definitions
- the present invention relates to an apparatus and a method for manufacturing an electrode body in which a positive electrode sheet and a negative electrode sheet are laminated with a separator interposed therebetween.
- Japanese Patent Application Laid-Open No. 2002-329530 discloses a sheet-type battery that aims to reduce the size of the battery or increase the electric capacity by effectively using a separator or a solid electrolyte layer and effectively using a space inside the battery. It is disclosed.
- this sheet type battery a plurality of positive electrode sheets and a plurality of negative electrode sheets are laminated so as to be alternately arranged with separators interposed therebetween, and the separators are formed by continuous sheets, and the adjacent positive electrode sheets and negative electrode sheets It is bent in a zigzag so as to sew between the two.
- An electrode body used for a lithium battery or the like is manufactured by laminating a plurality of positive electrode sheets (positive electrode plates) and negative electrode sheets (negative electrode plates) with a separator interposed therebetween. For this reason, there is a demand for an apparatus capable of accurately laminating a separator, a positive electrode sheet, and a negative electrode sheet with a simple configuration.
- One embodiment of the present invention is an apparatus for manufacturing an electrode body in which a positive electrode sheet and a negative electrode sheet are stacked with a separator interposed therebetween.
- the apparatus includes a first unit for folding a continuous body of separators in a first region, and a positive electrode sheet and a negative electrode sheet in the first region in synchronization with the first unit folding a continuous body of separators.
- a device having a second unit that alternately supplies The first unit is a first wall surface and a second wall surface having a length substantially equal to the length of the folding, and the first wall surface is folded in the first region in a state where the separator continuous body is alternately adsorbed. Includes a second wall.
- the separator By alternately supporting the separator continuous body (hereinafter referred to as the separator) by the first and second wall surfaces, the tension in the vicinity of the first region can be maintained when the continuous separator is folded. For this reason, it is possible to suppress fluctuations in tension when the separator is folded (folded) in the first region. Therefore, it is possible to manufacture a laminate (electrode body) in which the separator, the positive electrode sheet, and the negative electrode sheet are laminated with high accuracy using a continuous separator.
- first wall surface and the second wall surface are disposed on both sides of the first region, and fall over and reverse each other with respect to the first region.
- These wall surfaces can be alternately stacked on the first region by a simple operation of falling the wall surfaces.
- the first wall surface and the second wall surface are arranged on both sides of the first region, and fall over and stand up with respect to the first region.
- the movable range of the wall surface can be narrowed, and the moving range of the separator can also be narrowed. For this reason, it is easy to provide a compact device with a short tact time.
- the first unit adsorbs the separator continuum with the first wall surface when the second wall surface falls, and causes the first wall surface to fall over the first region with the separator continuum adsorbed,
- the first subunit that reverses the first wall surface in a state in which the separator continuous body is released, and the separator continuous body is adsorbed by the second wall surface when the first wall surface falls, and the separator continuous body is It is desirable to include a second subunit that inverts the second wall surface in a state where the second wall surface is overturned in the first region in an adsorbed state and in which the second wall surface is inverted in a state where the continuous body of the separator is released.
- the first wall surface includes a distal end that guides the separator continuum to the proximal end of the second wall surface when it falls, and the second wall surface causes the separator continuum to be proximal to the first wall surface when it falls. It is effective to include a tip leading to The operation of overturning the wall surface can be combined with the operation of transferring and supporting the continuous body of the separator to the other wall surface.
- the first unit includes a third wall surface that presses the separator continuum against the second wall surface when the first wall surface falls, and the separator continuum when the second wall surface falls. It is desirable to include the 4th wall surface pressed against. From the first wall surface to the second wall surface, and conversely, from the second wall surface to the first wall surface, it is possible to more reliably adsorb and support the continuous body of separators.
- this apparatus further includes a supply unit that supplies a continuous body of separators with tension applied to the first wall surface and the second wall surface. Since the separator is supported by the wall surface in the vicinity of the first region, the occurrence of distortion and deflection of the separator can be suppressed with a small tension when folded. For this reason, the tension
- this apparatus further includes a position adjustment unit that retreats the stacked body stacked in the first region with respect to the first wall surface and the second wall surface.
- the position adjustment unit may raise the wall surface and may retract (lower) the stacked body.
- Another aspect of the present invention is a method comprising producing an electrode body in which a positive electrode sheet and a negative electrode sheet are laminated with a separator interposed therebetween, and typically a method for producing a laminated body (electrode body)
- a method for producing a battery including an electrode body includes the following steps. 1. The first wall and the second wall having a length approximately equal to the length to be folded are stacked on the first region in a state where the separator continuum is alternately adsorbed, and the separator continuum is placed on the first region. Fold up. 2. In synchronization with folding the separator continuous body, the positive electrode sheet and the negative electrode sheet are alternately supplied and laminated in the first region.
- Folding means that the first wall surface and the second wall surface arranged on both sides of the first region overturn and invert each other to the first region, and the separator supplied from above to the first region It is desirable to include folding the continuum into the first region. Further, folding means that the first wall surface falls over to the first region while adsorbing the separator continuum, and the first wall surface falls over when the separator continuum is released and the first wall surface falls.
- the second wall surface preferably includes adsorbing the separator continuum. Similarly, folding means that the second wall surface has fallen into the first region while adsorbing the separator continuum, the second wall surface has been reversed, and the second wall surface has fallen. Sometimes it is desirable for the first wall surface to include adsorbing a separator continuum.
- One of further different aspects of the present invention is a method for controlling an apparatus having a first unit and a second unit.
- This apparatus includes a first unit for causing a first wall and a second wall having a length substantially equal to a length to be folded to fall in a first area and folding a continuous body of separators in the first area. And a second unit that alternately supplies the positive electrode sheet and the negative electrode sheet to the first region in synchronization with folding of the separator continuous body.
- the control method includes the following steps, and is provided by being recorded on an appropriate medium (such as a CD-ROM) as a computer having a computer resource such as a CPU and memory or a program (program product) for operating the computer.
- the first wall surface is overturned to the first region with the separator continuum adsorbed, and the first wall surface is raised with the separator continuum released.
- the second wall surface is caused to fall over in the first region while adsorbing the separator continuum, and the second wall surface is raised while the separator continuum is released.
- FIGS. 5A to 5E are views showing a process of assembling a cell by a laminated unit.
- the flowchart which shows the process in which a cell is manufactured with a lamination
- FIG. 1 shows a laminating apparatus for producing an electrode body (cell) by laminating a positive electrode sheet, a negative electrode sheet and a separator.
- the laminating apparatus 1 includes a first supply line 110 that supplies the positive electrode sheet 11, a second supply line 120 that supplies the negative electrode sheet 12, a third supply line 130 that supplies the separator 13, and the separator 13.
- a stack unit 50 that stacks the positive electrode sheet 11 and the negative electrode sheet 12 to generate a cell (laminated body) 10, and a first transport unit 61 that transports the positive electrode sheet 11 from the first supply line 110 to the stack unit 50.
- a second conveyance unit 62 that conveys the negative electrode sheet 12 from the second supply line 120 to the lamination unit 50.
- FIG. 2 shows a more detailed configuration of the laminating apparatus 1.
- the first supply line 110 and the second supply line 120 have a common configuration.
- the second supply line 120 shows only the final alignment unit, and the other configurations are the first supply line 110.
- a first supply line 110 that supplies a positive electrode sheet (electrode sheet) 11 includes a roll 111 in which a continuous electrode sheet 11 is wound in a columnar shape, and a fixed-size feeder 112 that draws a sheet of a certain length from the roll 111. And a cutter 113 for cutting the sheet into a fixed dimension, an alignment unit 115 for adjusting the orientation of the cut electrode sheet 11, and a transport unit 114 for transporting the electrode sheet 11 from the cutter 113 to the alignment unit 115.
- the alignment unit 115 includes a camera 117 that detects the attitude (orientation) of the electrode sheet 11 and an XY ⁇ table 116 that controls the attitude of the electrode sheet 11.
- the electrode sheet 11 adjusted to have a predetermined orientation by the XY ⁇ table 116 is conveyed to the stacking unit 50 by the first conveyance unit 61 (not shown in FIG. 2).
- the third supply line 130 that supplies the separator 13 includes a roll 131 in which the continuous separator 13 is wound in a columnar shape, a tension roller 132 that applies a certain tension to the continuous separator, and the continuous separator 13. And a third transport unit 135 that transports to the stacking unit 50.
- the third transport unit 135 includes a supply roller 136 that changes the supply direction of the continuous separator 13 and a slider 137 that changes the position of the supply roller 136 in the continuous direction (longitudinal direction, X direction). Including.
- the laminated unit (folding unit, electrode assembly unit, first unit) 50 includes a laminated stage 55 that supports the laminated body, and both sides (first areas) of a laminated area (first area) 56 of the laminated stage 55. 56.
- the first wing (first wall body) 71 and the second wing (second wall body) 72 arranged on the opposite side or opposite to each other with the 56 interposed therebetween, and the first wing 71 in the X direction.
- a first drive motor 75 that rotationally drives, a second drive motor 76 that rotationally drives the second wing 72 in the X direction, and a position adjustment unit 59 that controls the position of the stacking stage 55 in the Z direction are included.
- the laminating apparatus 1 further includes a control unit 100 that controls these motors and the like.
- the first wing 71 includes a first wall surface 51 that faces the stacking region (first region) 56 of the stacking stage 55, and falls over and reverses the stacking region 56.
- the second wing 72 includes a second wall surface 52 that faces the laminated region 56 and falls and reverses over the laminated region 56.
- the first wing 71 has a first wall surface 51 that moves (rotates) in an upright state (upright state) and a fallen state with respect to the stacking region 56 of the stacking stage 55 around the base end 51a, and a first wall 51
- the second wing 72 has a second wall surface 52 that moves (rotates) in an upright state and an overturned state with respect to the stacking region 56 of the stacking stage 55 around the base end 52 a, and the tip of the second wall surface 52.
- This is an inverted L-shaped member (unit) including a fourth wall surface 54 extending vertically from 52 b to the opposite side from the laminated region 56.
- the length of the first wall surface 51 and the second wall surface 52 is the length of the stacked region (first region) 56 that folds (folds) the continuous separator (separator continuous body) 13.
- the length of the third wall surface 53 and the fourth wall surface 54 is shorter than the length of the first wall surface 51 and the second wall surface 52, and is about 1/3 to 2/3. It is.
- the first wing 71 and the second wing 72 need only include these wall surfaces 51 to 54, and are not limited to the L-shape, and may be a rectangular parallelepiped or a cube, and have a triangular prism shape. There may be.
- the first wing 71 and the second wing 72 are opposed to both sides in the X direction of the stacking region 56 of the stacking stage 55, that is, both sides in the direction in which the continuous separators 13 are continuous (the direction in which the separators are continuously supplied). Are arranged.
- FIG. 3 shows a state in which the laminated unit 50 is viewed from the X direction.
- FIG. 4 shows a state in which the stacked unit 50 is viewed from the Y direction.
- the laminating apparatus 1 supplies a positive electrode sheet 11 and a negative electrode sheet 12 to a laminating unit (first unit) 50 from the Y direction (a direction orthogonal to the direction in which the separator 13 is continuously supplied).
- (Second unit) 60 is included.
- the sheet conveyance unit 60 alternately supplies the positive electrode sheet 11 and the negative electrode sheet 12 to the lamination region (first region) 56 in synchronization with the lamination unit 50 folding the continuous body of the separators 13.
- the sheet conveyance unit (second unit) 60 includes a rail 65 extending in the Y direction, and a first conveyance unit 61 and a second conveyance unit 62 that move the rail 65 in the Y direction.
- the first transport unit 61 transports the positive electrode sheet 11 from the XY ⁇ table 116 of the first supply line 110 to the stack region 56 on the stack stage 55.
- the second transport unit 62 transports the negative electrode sheet 12 from the XY ⁇ table 116 of the second supply unit 120 to the stack region 56 on the stack stage 55.
- Each transport unit 61 and 62 includes a suction head 66 that sucks and supports the respective sheets 11 and 12.
- An example of the positive electrode sheet (positive electrode plate) 11 of the electrode body 10 for a lithium battery is a positive electrode active material of a metal oxide (such as lithium nickelate), a conductive material such as carbon black, and an aqueous disperser of polytetrafluoroethylene.
- a positive electrode active material mixed with an adhesive such as John is applied to both surfaces of a metal foil such as an aluminum foil, dried, rolled, and then cut into a predetermined size.
- An example of the negative electrode sheet (negative electrode plate) 12 is a negative electrode active material that absorbs and releases lithium ions of a positive electrode active material, such as amorphous carbon, which is applied to both surfaces of a metal foil such as a nickel foil or a copper foil and dried. After being rolled, it is cut into a predetermined size.
- the positive electrode sheet 11 and the negative electrode sheet 12 are not limited to a lithium battery, and may be other types of batteries or an electrode body for a fuel cell.
- the stacking unit (first unit) 50 shown in FIG. 4 is a wall surface having a length substantially equal to the length L1 to be folded, and the stacking region (first region) in a state where the continuous bodies of the separators 13 are alternately adsorbed.
- ) 56 includes a first wall surface 51 and a second wall surface 52 that overlap each other.
- the widths of the first and second wall surfaces 51 and 52 are desirably the same as or slightly wider than the width of the separator 13.
- the widths of the first and second wall surfaces 51 and 52 may be narrower than the width of the separator 13, but supporting the entire width of the separator 13 makes it easier to maintain the accuracy of the folded portion when folded.
- the separator 13 prevents a short circuit between the positive electrode sheet (positive electrode plate, positive electrode layer) 11 and the negative electrode sheet (negative electrode plate, negative electrode layer) 12 described above, and may have a function of holding an electrolytic solution.
- the separator 13 is a microporous film made of polyolefin such as polyethylene (PE) or polypropylene (PP), for example, and when an overcurrent flows, the pores of the film are blocked by the heat generation, thereby blocking the current. It also has.
- the separator 13 is not limited to a single-layer film such as polyolefin, but a three-layer structure in which a polypropylene layer is sandwiched between polyethylene layers, or a laminate of a polyolefin microporous film and an organic nonwoven fabric can also be used. Note that in this specification, the separator refers to a film-like substance sandwiched between electrodes.
- the first wing 71 of the stacked unit 50 is an inverted L-shaped unit as a whole including a first wall surface 51 and a third wall surface 53 extending in a direction perpendicular to the first wall surface 51.
- the wall surface 51 includes a plurality of suction holes 41 for sucking (suctioning) the separator 13.
- the second wing 72 is a reverse L-shaped unit as a whole, including a second wall surface 52 and a fourth wall surface 54 extending in a direction perpendicular to the second wall surface 52. Is provided with a plurality of suction holes 41 for adsorbing (suctioning) the separator 13.
- the lamination unit 50 includes a first subunit 73 that controls the first wing 71 and a second subunit 74 that controls the second wing 72.
- the first subunit 73 is a motor 75 that drives the first wing 71 around the base end 51a to fall into the stacked region 56 and the inverted state (stand up in the vertical direction); Adsorption that holds the separator 13 by applying suction to the first wall surface 51 by applying a negative pressure to the plurality of suction holes 41 provided in the first wall surface 51 or releasing the separator 13 by breaking the negative pressure.
- a control unit 77 is a control unit 77.
- the first subunit 73 adsorbs the continuum of the separator 13 by the first wall surface 51 when the second wall surface 52 falls, and the laminated region in a state where the continuum of the separator 13 is adsorbed.
- the first wall surface 51 is turned over to the (first region) 56, and the first wall surface 51 is reversed in a state where the continuous body of the separator 13 is released.
- the second subunit 74 includes a motor 76 for driving the second wing 72 around the base end 52a to drive the state into a state where the second wing 72 is turned over to the stacked region 56 and a state where the second wing 72 is turned upside down (standing state).
- a suction control unit 78 for holding the separator 13 by applying suction to the second wall surface 52 by setting a plurality of suction holes 41 provided in the wall surface 52 to a negative pressure, or for releasing the separator 13 by breaking the negative pressure.
- the second subunit 74 adsorbs the continuum of the separator 13 by the second wall surface 52 when the first wall surface 51 falls, and in the state where the continuum of the separator 13 is adsorbed, ) 56, the second wall surface 52 is turned over, and the second wall surface 52 is reversed in a state in which the continuous body of the separator 13 is released.
- the base ends 51 a and 52 a of the respective wall surfaces 51 and 52 are arranged so as to coincide with the sides facing the X direction of the stacked region 56 having the same size as the cross section (plan view) of the stacked body (electrode body) 10.
- the length (height) L1 of the first wall surface 51 is the same as the length (width) L1 of the laminated region 56, that is, the length (width) of the laminated body 10, and the first wing 71 is clockwise.
- the first wall surface 51 overlaps the stacked region 56, the separator 13 adsorbed on the first wall surface 51 is folded and stacked on the stacked region 56, and the electrode body 10 having a length (width) L1 is formed.
- the upper end 51b of the first wall surface 51 reaches very close to the proximal end 52a of the second wall surface 52 facing, and the third wall surface 53 faces the second wall surface 52 at a very short distance ( Facing, facing). Therefore, when the first wing 71 falls toward the stacking region 56, the continuous body of the separator 13 is folded into the stacking region 56, and the continuous body of the separator 13 is changed by the upper end 51b of the first wall surface 51.
- the second wing 72 is guided to the second wall surface 52 and is sandwiched between the third wall surface 53 of the first wing 71 and the second wall surface 52 of the second wing 72.
- the continuous body of the separators 13 is mutually adsorbed and supported by the first wall surface 51 and the second wall surface 52 when being folded on the stacked region 56. Further, when the support of the separator 13 is inherited from the first wall surface 51 to the second wall surface 52, the separator 13 is folded and pressed by the one wall surface 51 or 52 into the stacked region 56, and the other Is sandwiched between the third wall surface 51 or 52 and the third or fourth wall surface 53 or 54.
- the separator 13 when the support of the separator 13 is transferred from the first wall surface 51 to the second wall surface 52, or vice versa, the separator 13 is not moved or the support is not loosened.
- the separator 13 can be folded over the laminated region 56 with a certain tension and length with high accuracy.
- the tension roller 132 that applies tension to the separator 13 gives the separator 13 the minimum necessary tension that does not loosen when reaching the first wall surface 51 and the second wall surface 52. It suffices if it is adjusted as follows. Therefore, the tension with respect to the separator 13 can be relatively relaxed, and troubles such as the separator 13 being cut or contracted after being folded can be prevented. Further, it is possible to prevent a problem that the tension of the separator 13 is too weak to cause wrinkles or distortion during folding.
- the first wall surface 51 and the second wall surface 52 have the same length L1 as the stacked region 56 in which the separator 13 is folded, and the width is the same or wider. Therefore, the first wall surface 51 and the second wall surface 52 can be sucked and supported with the size and area of folding the separator 13, and troubles such as wrinkles and distortion of the separator 13 occur before folding. Can be prevented.
- a third wall surface 53 is provided at the tip 51b of the first wall surface 51
- a fourth wall surface 54 is provided at the tip 52b of the second wall surface 52, and the portion where the separator 13 is folded back is the third.
- the stacking stage 55 has a suction hole (not shown) for sucking and supporting the separator 13 that is folded first.
- the stacking stage 55 is supported by a stepping motor that moves as a position adjustment unit 59 to support the wings 71 and 72 in rotation. Gradually descends against. Therefore, the position of the stacked region 56 where the separator 13 is folded by the first wall surface 51 and the second wall surface 52 is controlled so as to be always constant on the upper surface of the support base 79.
- the position adjustment unit 59 may control the position of the support base 79 instead of the stacking stage 55, or may control both positions.
- FIG. 5 shows a process in which the laminated body (electrode body) 10 is manufactured in the laminated unit 50.
- the first wing 71 rotates clockwise with the first wall 71 adsorbing the continuum (separator) of the separator 13 to the first wall surface 51 and falls over the stacked region 56.
- the separator 13 is folded and stacked on the stacked region 56 by the first wall surface 51.
- the separator 13 is guided by the third wall surface 53 so as to face the second wall surface 52, and the separator 13 is adsorbed and supported by the second wall surface 52.
- the first wing 71 rotates (inverts) counterclockwise with the separator 13 released, and the first wall surface 51 rises in a direction substantially perpendicular to the stacked region 56.
- the positive electrode sheet 11 is carried into the lamination region 56 by the first transport unit 61, and the positive electrode sheet 11 is stacked on the folded separator 13.
- the second wing 72 rotates (turns over) counterclockwise in a state where the separator 13 is sucked and supported on the second wall surface 52.
- the separator 13 is folded into the laminated region 56 by the second wall surface 52.
- the separator 13 is guided by the fourth wall surface 54 to face the first wall surface 51, and the separator 13 is adsorbed and supported by the first wall surface 51.
- the second wing 72 rotates (inverts) clockwise with the separator 13 released, and the second wall surface 52 rises from the stacked region 56.
- the negative electrode sheet 12 is carried into the lamination region 56 by the second transport unit 62, and the negative electrode sheet 12 is stacked on the folded separator 13.
- the above steps are repeated until a predetermined number of the positive electrode sheets 11 and the negative electrode sheets 12 are stacked with the separator 13 interposed therebetween.
- the position of the lamination stage 55 is lowered by the position adjustment unit 59 corresponding to the thickness of the separator 13, the positive electrode sheet 11, and the negative electrode sheet 12 to be stacked. Further, the supply position of the separator 13 is set to a position substantially along the first wall surface 51 and the second wall surface 52 as the supply roller 136 of the third transport unit 135 moves in the X direction along the slider 137. Move back and forth in the X direction.
- FIG. 6 shows a process of manufacturing the laminated body (electrode body, cell) 10 for the battery by controlling the laminating apparatus 1 by the control unit 100.
- the control unit 100 is a controller having computer resources such as a CPU and a memory, and controls the stacking apparatus 1 by a program (program product).
- step 81 the motor 75 is controlled, and the first wall surface 51 is overturned in a state where the continuous separator 13 is adsorbed, and the separator 13 is folded over the laminated region 56.
- step 82 the adsorption of the second wall surface 52 is started, and thereafter the adsorption of the first wall surface 51 is released.
- step 83 the first wall surface 51 is inverted, and the first wall surface 51 is raised with the separator 13 released.
- the positive electrode sheet 11 is carried into the lamination region 56 by the first conveyance unit 61 and stacked on the separator 13.
- step 85 the motor 76 is controlled, and the second wall surface 52 is turned over in a state where the continuous separator 13 is adsorbed, and the separator 13 is folded over the laminated region 56.
- step 86 the suction of the first wall surface 51 is started, and then the suction of the second wall surface 52 is released. As a result, the support of the separator 13 is transferred from the second wall surface 52 to the first wall surface 51.
- step 87 the second wall surface 52 is reversed and the second wall surface 52 is raised with the separator 13 released.
- step 88 the negative electrode sheet 12 is carried into the lamination region 56 by the second conveyance unit 62 and stacked on the separator 13.
- Step 89 Steps 81 to 88 are repeated until a predetermined amount (number of times) of folding (stacking) is completed.
- stacking apparatus 1 it laminates
- the device 1 is preferred.
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Abstract
Description
1.第1の領域に、折り重ねる長さとほぼ等しい長さの第1の壁面および第2の壁面を、セパレータの連続体を交互に吸着した状態で重ねて、第1の領域にセパレータの連続体を折り重ねること。
2.セパレータの連続体を折り重ねるのに同期して、第1の領域に正極シートおよび負極シートを交互に供給して積層すること。
・セパレータの連続体を吸着した状態で第1の領域に第1の壁面を転倒させ、セパレータの連続体を解放した状態で第1の壁面を起こすこと。
・第1の壁面が起きたときに、セパレータの連続体を吸着した状態で第1の領域に第2の壁面を転倒させ、セパレータの連続体を解放した状態で第2の壁面を起こすこと。
Claims (12)
- セパレータを挟んで正極シートおよび負極シートが積層された電極体を製造する装置であって、
第1の領域にセパレータの連続体を折り重ねる第1のユニットと、
前記第1のユニットが前記セパレータの連続体を折り重ねるのに同期して、前記第1の領域に正極シートおよび負極シートを交互に供給する第2のユニットとを有し、
前記第1のユニットは、折り重ねる長さとほぼ等しい長さの第1の壁面および第2の壁面であって、前記セパレータの連続体を交互に吸着した状態で前記第1の領域に折り畳む第1の壁面および第2の壁面を含む、装置。 - 請求項1において、前記第1の壁面および前記第2の壁面は、前記第1の領域の両側に配置され、前記第1の領域に対し相互に転倒および反転する、装置。
- 請求項1または2において、前記第1の壁面および前記第2の壁面は、前記第1の領域の両側に配置され、前記第1の領域に対し相互に転倒および起立する、装置。
- 請求項2または3において、
前記第1のユニットは、前記第2の壁面が転倒したときに前記第1の壁面で前記セパレータの連続体を吸着し、前記セパレータの連続体を吸着した状態で前記第1の領域に前記第1の壁面を転倒させ、前記セパレータの連続体を解放した状態で前記第1の壁面を反転する第1のサブユニットと、
前記第1の壁面が転倒したときに第2の壁面で前記セパレータの連続体を吸着し、前記セパレータの連続体を吸着した状態で前記第1の領域に前記第2の壁面を転倒させ、前記セパレータの連続体を解放した状態で前記第2の壁面を反転する第2のサブユニットとを含む、装置。 - 請求項2ないし4のいずれかにおいて、前記第1の壁面は、転倒したときに前記セパレータの連続体を前記第2の壁面の基端に導く先端を含み、
前記第2の壁面は、転倒したときに前記セパレータの連続体を前記第1の壁面の基端に導く先端を含む、装置。 - 請求項2ないし5のいずれかにおいて、さらに、前記第1のユニットは、前記第1の壁面が転倒したときに前記セパレータの連続体を前記第2の壁面に押しつける第3の壁面と、前記第2の壁面が転倒したときに前記セパレータの連続体を前記第1の壁面に押しつける第4の壁面とを含む、装置。
- 請求項1ないし6のいずれかにおいて、前記第1の領域に積層された積層体を前記第1の壁面および前記第2の壁面に対し後退させる位置調整ユニットをさらに有する、装置。
- 請求項1ないし7のいずれかにおいて、前記第1の壁面および前記第2の壁面に対し張力がある状態で前記セパレータの連続体を供給する供給ユニットをさらに有する、装置。
- セパレータを挟んで正極シートおよび負極シートが積層された電極体を製造することを有する方法であって、
前記電極体を製造することは、第1の領域に、折り重ねる長さとほぼ等しい長さの第1の壁面および第2の壁面を、セパレータの連続体を交互に吸着した状態で重ねて、前記第1の領域に前記セパレータの連続体を折り重ねることと、
前記セパレータの連続体を折り重ねるのに同期して、前記第1の領域に正極シートおよび負極シートを交互に供給して積層することとを含む、方法。 - 請求項9において、
前記折り重ねることは、前記第1の領域の両側に配置された前記第1の壁面および前記第2の壁面が前記第1の領域に相互に転倒および反転し、前記第1の領域に対し上方から供給される前記セパレータの連続体を前記第1の領域に折り畳むことを含む、方法。 - 請求項10において、
前記折り畳むことは、前記第1の壁面が前記セパレータの連続体を吸着した状態で前記第1の領域に転倒し、前記セパレータの連続体を解放した状態で反転することと、
前記第1の壁面が転倒したときに、前記第2の壁面が前記セパレータの連続体を吸着することとを含む、方法。 - 第1の領域に、折り重ねる長さとほぼ等しい長さの第1の壁面および第2の壁面を相互に転倒させて前記第1の領域にセパレータの連続体を折り重ねる第1のユニットと、
前記セパレータの連続体を折り重ねるのに同期して、前記第1の領域に正極シートおよび負極シートを交互に供給する第2のユニットとを有する装置の制御方法であって、
前記セパレータの連続体を吸着した状態で前記第1の領域に前記第1の壁面を転倒させ、前記セパレータの連続体を解放した状態で前記第1の壁面を起こすことと、
前記第1の壁面が起きたときに、前記セパレータの連続体を吸着した状態で前記第1の領域に前記第2の壁面を転倒させ、前記セパレータの連続体を解放した状態で前記第2の壁面を起こすこととを有する、制御方法。
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KR102012957B1 (ko) | 2019-08-21 |
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US9401576B2 (en) | 2016-07-26 |
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TW201340436A (zh) | 2013-10-01 |
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HK1197318A1 (en) | 2015-01-09 |
JPWO2013128930A1 (ja) | 2015-07-30 |
KR20140128221A (ko) | 2014-11-05 |
US20140059855A1 (en) | 2014-03-06 |
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