WO2017175553A1 - シート積層治具、積層製品の製造方法、及びシート状二次電池の製造方法 - Google Patents
シート積層治具、積層製品の製造方法、及びシート状二次電池の製造方法 Download PDFInfo
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- WO2017175553A1 WO2017175553A1 PCT/JP2017/010399 JP2017010399W WO2017175553A1 WO 2017175553 A1 WO2017175553 A1 WO 2017175553A1 JP 2017010399 W JP2017010399 W JP 2017010399W WO 2017175553 A1 WO2017175553 A1 WO 2017175553A1
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- sheet
- holding
- electrode
- sheets
- yoke
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B41/00—Arrangements for controlling or monitoring lamination processes; Safety arrangements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
- B32B37/16—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with all layers existing as coherent layers before laminating
- B32B37/18—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with all layers existing as coherent layers before laminating involving the assembly of discrete sheets or panels only
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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
- H01M10/0436—Small-sized flat cells or batteries for portable equipment
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/46—Separators, membranes or diaphragms characterised by their combination with electrodes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2457/00—Electrical equipment
-
- 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
- H01M10/0413—Large-sized flat cells or batteries for motive or stationary systems with plate-like electrodes
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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
-
- 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
Definitions
- the present invention relates to a technique for manufacturing a laminated product in which components are inserted between a plurality of sheets.
- Patent Document 1 discloses a laminating apparatus that alternately laminates positive foils, negative foils, and separators.
- the lamination apparatus of Patent Document 1 includes a lamination table, a conveyance device that adsorbs and conveys a sheet body such as a positive foil, a negative electrode foil, and a separator to the lamination table, and a holding mechanism that holds the sheet body.
- a positive foil, a negative foil, and a separator are conveyed to a laminating apparatus by a conveying device.
- the transport device transports the separator to the stacking device.
- the separator is stacked by moving the holding mechanism to the retracted position.
- the conveying device sucks and holds the negative electrode foil and conveys it to the laminating device.
- the holding mechanism is moved to the retracted position, and the negative electrode foil is laminated.
- Patent Document 1 there is a problem that it is necessary for the conveying device to convey the sheet body for each lamination process. That is, for each sheet, the sheet body needs to be picked and placed, and the manufacturing time becomes long. In particular, the greater the number of stacked layers, the longer the total time required for conveyance and the lower the productivity.
- the present invention has been made in view of the above problems, and an object of the present invention is to provide a technique capable of easily manufacturing a laminated product in which components are arranged between a plurality of laminated sheets.
- a sheet stacking jig is a sheet stacking jig for manufacturing a stacked product in which components are arranged between a plurality of stacked sheets, and holds a stage and a plurality of sheets.
- a gap is formed between the plurality of sheets by the magnetic force of the magnetic circuit so that one of the plurality of sheets along the sheet holding side surface is tilted toward the work space.
- a sheet gripping member that grips the single sheet may be further provided.
- the magnetic circuit is a plurality of magnets arranged side by side in a first direction, and a plurality of magnets arranged so that the same poles of adjacent magnets face each other, A first yoke disposed on both ends of each magnet; a nonmagnetic material disposed at a position corresponding to each first yoke; a second yoke disposed at a position corresponding to the magnet; You may have.
- the plurality of magnets may be permanent magnets, and the second yoke and the nonmagnetic material may be provided to be movable in the first direction.
- the first direction is a direction along the sheet holding side surface, and three or more permanent magnets are arranged side by side in the first direction.
- the magnetic force of the permanent magnet disposed at the center portion of the sheet holding side surface and the other end portion of the sheet holding side surface is weaker than the magnetic force of the permanent magnet disposed at one end portion of the sheet holding side surface. It may be.
- the plurality of magnets may be electromagnets.
- the sheet stacking jig three or more electromagnets are arranged side by side in the first direction, and the first direction is a direction along the sheet holding side surface, and the first direction
- the magnetic force of the electromagnet arranged at the central portion of the sheet holding side surface and the other end of the sheet holding side surface is weaker than the magnetic force of the electromagnet arranged at the end portion of the sheet holding side surface.
- a current may be passed through the electromagnet.
- the sheet stacking jig further includes a component turning member inserted between the plurality of components held along the component holding side surface and the component holding side surface, and the component turning member is inserted in the insertion direction of the component turning member.
- the plurality of components may be arranged side by side, and the component turning member may be configured to tilt the components one by one from the plurality of components toward the workspace.
- the magnetic circuit includes a permanent magnet, a first yoke disposed on one end side of the permanent magnet, a second yoke disposed on the other end side, and the permanent magnet.
- the permanent magnet may be rotatable about a rotation axis along a first direction of the sheet holding side surface.
- the manufacturing method which concerns on 1 aspect of this embodiment is a manufacturing method which manufactures a laminated product using said sheet
- a manufacturing method is a manufacturing method for manufacturing a laminated product using the sheet stacking jig described above, wherein one pole of the permanent magnet is connected to the first non-magnetic body and the other.
- the first step of holding the sheet on the sheet holding side surface, and rotating the permanent magnet along the rotation axis
- a sheet-like secondary battery manufacturing method for manufacturing a sheet-like secondary battery by the above-described manufacturing method wherein the sheet is a unit battery sheet including a charging layer, and the component is connected to the unit battery sheet. It is an electrode.
- FIG. 3 is a perspective view illustrating a configuration of a sheet stacking jig according to the first embodiment.
- FIG. 3 is a perspective view illustrating a configuration of a sheet stacking jig according to the first embodiment. It is a perspective view which shows typically the principal part of a sheet
- FIG. 6 is a diagram illustrating a configuration of a magnetic circuit of a sheet stacking jig in Embodiment 2.
- FIG. 4 is a diagram schematically showing a basic configuration of a different magnetic circuit. It is a figure for demonstrating the 1st process in the magnetic circuit shown in FIG. It is a figure for demonstrating the 2nd process in the magnetic circuit shown in FIG.
- FIG. 1 is a plan view showing a configuration of a sheet-like secondary battery 500.
- FIG. 2 is a side sectional view of the sheet-like secondary battery 500.
- the sheet-like secondary battery 500 has a plurality of sheets 50 and a plurality of electrodes 30. As shown in FIG. 2, the plurality of sheets 50 are stacked on each other. Each sheet 50 is a unit battery sheet including a charging layer and the like, as will be described later.
- the electrode 30 is inserted between the two adjacent sheets 50. That is, the sheets 50 and the electrodes 30 are alternately arranged in the thickness direction (vertical direction in FIG. 2).
- the electrode 30 is a belt-like sheet electrode whose longitudinal direction is the left-right direction in FIG.
- the plurality of electrodes 30 are arranged so as to be shifted from each other, and constitute a comb electrode. That is, the plurality of electrodes 30 are arranged so as not to overlap in a plan view. As shown in FIG. 1, a part of each electrode 30 protrudes from the sheet 50 in plan view. A portion of the electrode 30 that protrudes from the sheet 50 is a tab portion 31. Then, by connecting the tab portions 31 of the plurality of electrodes 30 with tab leads (not shown) or the like, the sheets 50 that are unit battery sheets are connected in parallel or in series.
- Each sheet 50 has, for example, a size of 100 mm ⁇ 100 mm and a thickness of 10 ⁇ m.
- six sheets 50 are stacked, but the number of stacked sheets 50 is not particularly limited. For example, ten sheets 50 can be stacked.
- the sheet 50 is a magnetic sheet such as a SUS sheet, for example.
- the number of electrodes 30 disposed between the sheets 50 may be two or more. Good. That is, two or more electrodes 30 may be disposed between the sheets 50. Furthermore, it is not necessary to arrange the electrodes 30 between all the sheets 50. For example, the electrodes 30 may be arranged every two sheets or every three sheets. Further, the parts arranged between the sheets 50 are not limited to the electrodes 30. For example, sheet-like components such as an insulating material and an adhesive material may be disposed between the sheets 50.
- FIG. 3 is a cross-sectional view showing a battery structure formed on one sheet 50.
- the sheet 50 has a stacked structure in which an n-type metal oxide semiconductor layer 512, a charge layer 513 for charging energy, a p-type metal oxide semiconductor layer 514, and a second electrode 515 are stacked in this order on a substrate 511. have.
- the base material 511 is formed of a conductive material such as metal and functions as a first electrode.
- the base material 511 is a negative electrode.
- a metal foil sheet such as a SUS sheet can be used.
- An n-type metal oxide semiconductor layer 512 is formed over the base material 511.
- a material of the n-type metal oxide semiconductor layer 512 for example, titanium dioxide (TiO 2 ) can be used.
- the material of the charging layer 513 it is possible to use a fine particle n-type metal oxide semiconductor.
- the n-type metal oxide semiconductor becomes a layer having a charging function when irradiated with ultraviolet rays.
- the charge layer 513 is made of a material containing an n-type metal oxide semiconductor and an insulating material.
- the n-type metal oxide semiconductor material that can be used in the charge layer 513 titanium dioxide, tin oxide, and zinc oxide are suitable. It is possible to use a material combining any two of titanium dioxide, tin oxide, and zinc oxide, or a material combining three.
- NiO nickel oxide
- CuAlO 2 copper aluminum oxide
- a second electrode 515 is formed on the p-type metal oxide semiconductor layer 514.
- the second electrode 515 is a positive electrode.
- a conductive film such as a metal film is used for the second electrode 515.
- a film that can reduce the resistance such as a laminated film of Cr and Pd, or an Al film is formed.
- a metal electrode such as chromium (Cr) or copper (Cu) can be used as the second electrode.
- other metal electrodes include a silver (Ag) alloy film containing aluminum (Al).
- the forming method include vapor phase film forming methods such as sputtering, ion plating, electron beam evaporation, vacuum evaporation, and chemical vapor deposition.
- the metal electrode can be formed by an electrolytic plating method, an electroless plating method, or the like. In general, copper, copper alloy, nickel, aluminum, silver, gold, zinc, tin or the like can be used as a metal used for plating.
- the stacking order on the substrate 511 in this embodiment may be reversed.
- the base material 511 may be formed using a conductive material that serves as a positive electrode, and the second electrode 515 may be used as a negative electrode.
- the positions of the n-type metal oxide semiconductor layer 512 and the p-type metal oxide semiconductor layer 514 may be interchanged. That is, a p-type metal oxide semiconductor layer may be disposed under the charging layer 513, and an n-type metal oxide semiconductor layer may be disposed thereon.
- the charge layer 513 a material in which an insulating material and an n-type metal oxide semiconductor are mixed is used.
- the charge layer 513 will be described in detail.
- the charge layer 513 uses silicone oil as a material for the insulating substance.
- titanium dioxide is used as a material for the n-type metal oxide semiconductor.
- n-type metal oxide semiconductor As a material for the n-type metal oxide semiconductor used for the charge layer 513, titanium dioxide, tin oxide, or zinc oxide can be used.
- the n-type metal oxide semiconductor is produced by decomposition from an aliphatic acid salt of these metals in the manufacturing process. For this reason, as a metal aliphatic acid salt, what can be decomposed
- aliphatic acid salts are easy to decompose or burn by heating, have high solvent solubility, have a dense film composition after decomposition or combustion, are easy to handle and inexpensive, and are easy to synthesize salts with metals.
- a salt of an aliphatic acid and a metal is preferred.
- the sheet-like secondary battery 500 can be increased in capacity by stacking the sheets 50 using the sheet 50 shown in FIG. 3 as a unit battery sheet.
- the sheet 50 shown in FIG. 3 as a unit battery sheet.
- two sheets 50 are stacked so that the second electrodes 515 face each other, and the electrode 30 is inserted between the sheets 50.
- two sheets 50 may be laminated so that the base materials 511 face each other, and a plurality of sheets 50 may be connected in parallel. By doing in this way, since the same polarity of the two sheets 50 is connected by the electrode 30, a plurality of sheets 50 can be connected in parallel.
- the two sheets 50 are laminated so that the second electrode 515 and the base material 511 face each other, and the electrode 30 is inserted between the sheets 50.
- the electrode 30 is inserted between the sheets 50.
- the n-type metal oxide semiconductor layer 512, the charge layer 513 for charging energy, the p-type metal oxide semiconductor layer 514, and the second electrode 515 are formed only on one surface of the base material 511. However, the n-type metal oxide semiconductor layer 512, the charge layer 513, the p-type metal oxide semiconductor layer 514, and the second electrode 515 may be formed on both surfaces of the base material 511.
- a plurality of sheets 50 are stacked, and the electrode 30 is disposed between the sheets 50. And the tab part 31 of the electrode 30 is connected by a tab lead. By doing so, a large number of sheets 50 can be connected in parallel or in series. Therefore, the capacity of the sheet-like secondary battery 500 in which the plurality of sheets 50 are stacked can be increased.
- a sheet stacking jig for arranging the electrodes 30 between the stacked sheets 50 is used in the manufacturing process of the sheet-like secondary battery 500. Further, the sheet separating jig is provided with a magnetic circuit for separating the sheets.
- the basic configuration of the magnetic circuit will be described before describing the sheet separating jig.
- FIG. 4 is a diagram showing a basic configuration of the magnetic circuit 20.
- the magnetic circuit 20 is arranged so as to generate a magnetic force for separating the plurality of sheets 50.
- a plurality of sheets 50 are arranged on the magnetic circuit 20.
- the clearance gap between the sheets 50 becomes large in the edge part of the some sheet
- the magnetic circuit 20 includes a permanent magnet 21, a first yoke 22, a second yoke 23, and a nonmagnetic material 24.
- a permanent magnet 21 is arranged side by side in the Z direction.
- the two permanent magnets 21 are arranged so that the same poles face each other.
- the S poles of the two permanent magnets 21 are arranged to face each other.
- the magnetic circuit 20 has two first yokes 22.
- the two first yokes 22 are arranged at both ends of the left permanent magnet 21. Therefore, the first yoke 22 on the right side is disposed between the two permanent magnets 21.
- the two first yokes 22 control the direction of the lines of magnetic force from the right permanent magnet 21 to the left permanent magnet 21.
- the magnetic circuit 20 has three nonmagnetic materials 24.
- the right nonmagnetic material 24 and the middle nonmagnetic material 24 are disposed at positions corresponding to the permanent magnet 21.
- the two nonmagnetic materials 24 are arranged at a central position between the north pole and the south pole of the permanent magnet 21 in the Z direction (dotted line between the north pole and the south pole in FIG. 4). . That is, the nonmagnetic material 24 is disposed at the center position of the permanent magnet 21 in the Z direction.
- the second yoke 23 is arranged at a position corresponding to the first yoke 22.
- the size of the second yoke 23 in the Z direction is larger than that of the first yoke 22. Therefore, the right second yoke 23 extends from a position corresponding to the right first yoke 22 to a position corresponding to the left permanent magnet 21.
- each of the second yokes 23 is not disposed at a position corresponding to both poles of the permanent magnet 21.
- the right second yoke 23 is disposed only at a position corresponding to the right first yoke 22 and a position corresponding to the S pole of the left and right permanent magnets 21. Thereby, the magnetic force of the permanent magnet 21 arranged at both ends of the right first yoke 22 is concentrated on the right first yoke 22, and this concentrated magnetic force is in contact with the right first yoke 22. Concentrate on the right second yoke 23.
- the magnetic force generated in the magnetic circuit 20 when the magnetic force generated in the magnetic circuit 20 is concentrated in a specific direction, the magnetic force lines in the X direction increase, and reach the sheet 50 through the surface of the second yoke 23.
- the plurality of sheets 50 can be warped by the magnetic force generated by the magnetic circuit 20.
- the shape of the magnetic lines of force B generated by the magnetic circuit 20 is a parabola, and the sheet 50 can be warped along the parabola.
- FIGS. 5 and 6 are perspective views showing the configuration of the sheet stacking jig 100.
- FIG. FIG. 7 is a perspective view in which a part of the configuration of the sheet stacking jig 100 is omitted.
- a plurality of stacked sheets 50 are illustrated as a stacked body 51. 5 to 7, description will be made using an XYZ orthogonal coordinate system in which the vertical direction is the Z direction and the horizontal plane is the XY plane.
- the sheet stacking jig 100 includes a stage 101, an electrode holding unit 102, an electrode holding guide 103, an electrode pallet 104, an electrode turning bar 105, a sheet holding guide 106, a sheet pallet 107, tweezers 108, and a positioning block 109. And a sheet holding unit 160.
- a certain area on the stage 101 is a work space A for stacking a plurality of sheets 50 to manufacture the sheet-like secondary battery 500. That is, in the work space A, the step of arranging the electrode 30 on the sheet 50 and the step of arranging the sheet 50 on the electrode 30 are alternately and repeatedly performed. Thereby, the sheet-like secondary battery 500 as shown in FIG. 2 is manufactured. Note that the end sides of the rectangular sheet 50 are parallel to the X direction and the Y direction.
- an electrode holding unit 102 and a sheet holding unit 160 are attached on the stage 101.
- the electrode holding unit 102 and the sheet holding unit 160 are disposed to face each other with the work space A interposed therebetween.
- the electrode holding unit 102 is arranged on the ⁇ X side of the work space A
- the sheet holding unit 160 is arranged on the + X side of the work space A.
- the electrode holding unit 102 and the sheet holding guide 106 are arranged to be separated from each other in the X direction.
- the electrode holding unit 102 has an electrode holding side surface 102 a that holds the plurality of electrodes 30.
- the electrode holding portion 102 is attached so that the electrode holding side surface 102a faces the work space A. That is, the side surface on the work space A side of the electrode holding portion 102 becomes the electrode holding side surface 102a.
- the electrode 30 held on the electrode holding side surface 102a is indicated by a broken line as an electrode 30a.
- the electrodes 30 a held on the electrode holding side surface 102 a are brought down one by one on the sheet 50 disposed in the work space A. By doing so, the electrode 30 is disposed on the sheet 50.
- the holding operation of the electrode 30 by the electrode holding unit 102 will be described later.
- the sheet holding unit 160 has a sheet holding side surface 160 a that holds a plurality of sheets 50.
- the sheet holding unit 160 is attached so that the sheet holding side surface 160a is disposed to face the electrode holding side surface 102a with the work space A interposed therebetween. That is, the side surface of the sheet holding unit 160 on the side of the work space A becomes the sheet holding side surface 160a. 5 and 6, the sheet 50 held on the sheet holding side surface 160a is shown as a sheet 50a.
- the sheets 50 a held on the sheet holding side surface 160 a are brought down one by one on the electrode 30 disposed in the work space A. By doing so, the sheet 50 is disposed on the electrode 30.
- the holding operation of the sheet 50 by the sheet holding unit 160 will be described later.
- the electrode holding side surface 102a and the sheet holding side surface 160a are arranged so as to face each other across the work space A.
- the work space A is an area disposed between the electrode holding side surface 102a and the sheet holding side surface 160a.
- the electrode holding side surface 102a and the sheet holding side surface 160a are curved so as to be separated from each other toward the upper side.
- the electrode holding side surface 102a is curved so as to be positioned on the ⁇ X side as it goes upward (+ Z direction side).
- the sheet holding side surface 160a is curved so as to be positioned on the + X side as it goes upward.
- a sheet pallet 107 is disposed between the stage 101 and the sheet holding unit 160.
- the sheet pallet 107 is a plate-like member having a size corresponding to the sheet 50.
- a plurality of stacked sheets 50 are placed on the sheet pallet 107.
- a sheet holding unit 160 is disposed on the sheet 50 placed on the sheet pallet 107.
- the sheet holding unit 160 is disposed on the + X side end of the sheet 50. That is, the sheet 50 and the sheet pallet 107 are arranged so as to protrude from the sheet holding unit 160 to the ⁇ X side.
- One end of the plurality of sheets 50 is held between the sheet pallet 107 and the sheet holding unit 160.
- the sheet pallet 107 is a rectangular plate-like member, and positioning blocks 109 are arranged near its four corners. As shown in FIG. 7, the laminated body 51 and the corners of the sheet pallet 107 are arranged so as to contact the positioning block 109. By doing in this way, the laminated body 51 is arrange
- a sheet holding guide 106 is attached to the stage 101 via a rotating shaft 106a.
- the sheet holding guide 106 is formed of a rod-shaped metal or resin bent into a desired shape.
- the sheet holding guide 106 rotates around the rotation shaft 106a.
- the rotation shaft 106 a is disposed on the + X side of the sheet holding unit 160.
- the sheet holding guide 106 extends from the rotation shaft 106 a to the ⁇ X side of the sheet holding unit 160.
- a part of the sheet holding guide 106 is disposed on the sheet holding side surface 160 a side of the sheet holding unit 160.
- the sheet holding guide 106 lifts the sheet 50 arranged on the sheet pallet 107, whereby the plurality of sheets 50 are held along the sheet holding side surface 160a. Since the sheet holding side surface 160a is curved, the sheet 50 is held curved.
- FIG. 8 is a side sectional view schematically showing a state before the sheet holding guide 106 holds the sheet 50 (hereinafter referred to as a sheet placement state). That is, in the sheet placement state, the stacked body 51 is placed on the sheet pallet 107.
- FIG. 9 is a side cross-sectional view schematically showing a state after the sheet holding unit 160 and the sheet holding guide 106 hold the sheet 50 (hereinafter referred to as a sheet holding state).
- a plurality of stacked sheets 50 are shown as a stacked body 51. Further, in the state shown in FIGS. 8 and 9, the electrode holding portion 102 or the like is not attached to the stage 101.
- the entire laminate 51 is placed on the sheet pallet 107. Then, the + X side end of the laminate 51 is disposed between the sheet pallet 107 and the sheet holding unit 160.
- a sheet holding guide 106 is disposed under the stacked body 51. That is, in the work space A, the sheet holding guide 106 is disposed between the sheet pallet 107 and the stacked body 51. The laminated body 51 is placed on a sheet pallet 107 so as to get over the sheet holding guide 106. Then, the sheet holding guide 106 is rotated around the rotation shaft 106a. In FIG. 8, the sheet holding guide 106 rotates around the rotation axis 106a along the Y direction. In the work space A, the sheet holding guide 106 is flipped up in the direction of arrow B.
- the sheet holding guide 106 moves upward, and the sheet holding state shown in FIG. 9 is obtained.
- the sheet holding guide 106 is disposed below the stacked body 51.
- the sheet holding guide 106 lifts the stacked body 51.
- the sheet holding guide 106 moves to the vicinity of the sheet holding side surface 160a.
- the stacked body 51 is held in a state along the sheet holding side surface 160 a of the sheet holding unit 160. That is, the stacked body 51 is in a state along the sheet holding side surface 160 a and is held between the sheet holding side surface 160 a and the sheet holding guide 106.
- the sheet placement state and the sheet holding state are switched. That is, by rotating the sheet holding guide 106 around the rotation shaft 106 a, the stacked body 51 can be held in a state where it is lifted from the sheet pallet 107.
- the laminated body 51 is held in a state along the sheet holding side surface 160a. That is, the laminated body 51 is sandwiched between the sheet holding side surface 160 a and the sheet holding guide 106. In this way, the sheet holding guide 106 holds the laminated body 51 along the sheet holding side surface 160a by lifting the laminated body 51 arranged in the work space A.
- An electrode pallet 104 is disposed between the stage 101 and the electrode holder 102.
- On the electrode pallet 104 is a plate-like member on which the end portion on the ⁇ X side of the electrode 30 is placed (see FIG. 7).
- the tab portion 31 (see FIGS. 1 and 2) of the electrode 30 is placed on the electrode pallet 104. That is, the electrode 30 protrudes from the electrode holding portion 102 to the + X side.
- An electrode holding unit 102 is disposed on the electrode 30. Therefore, the electrode pallet 104 and the electrode holding portion 102 sandwich one end of the electrode 30.
- the electrode 30 extends from the top of the electrode pallet 104 to the top of the sheet pallet 107.
- the electrode pallet 104 is provided with a through hole 104a.
- a slide pin 101 a is attached to the stage 101.
- the stage 101 is provided with a long hole 101b along the X direction. The slide pin 101a is inserted into the long hole 101b and the through hole 104a. Therefore, by sliding the slide pin 101a along the long hole 101b, the sheet pallet 107 slides along the X direction. The sliding movement of the sheet pallet 107 will be described later.
- the electrode holding portion 102 has the electrode holding side surface 102a arranged toward the work space A.
- the electrode 30a is held along the electrode holding side surface 102a.
- the electrode holding side surface 102a has a groove 102b.
- the groove 102b is formed along the Y direction.
- An electrode turning rod 105 described later is inserted into the groove 102b. Therefore, the electrode turning bar 105 is inserted between the electrode 30a and the electrode holding side surface 102a.
- the electrode holding guide 103 is attached to the stage 101 via a rotating shaft 103a.
- the electrode holding guide 103 rotates around the rotation shaft 103a.
- the rotation shaft 103 a is disposed on the ⁇ X side of the electrode holding unit 102.
- the electrode holding guide 103 extends from the rotating shaft 103a to the + X side of the electrode holding portion 102.
- a part of the electrode holding guide 103 is disposed on the electrode holding side surface 102 a side of the electrode holding portion 102.
- the electrode holding guide 103 is made of a rod-like metal or resin bent into a desired shape (a U-shape in FIGS. 5 and 6).
- the electrode holding unit 102 lifts the electrode 30 disposed in the work space A, whereby the plurality of electrodes 30 are held along the electrode holding side surface 102a. Since the electrode holding side surface 102a is curved, the electrode 30 is also held curved.
- FIG. 10 is a side sectional view schematically showing a state before the electrode holding guide 103 holds the electrode 30 (hereinafter referred to as an electrode mounting state).
- FIG. 11 is a side sectional view schematically showing a state after the electrode holding guide 103 holds the electrode 30 (hereinafter referred to as an electrode holding state).
- one end of the electrode 30 (the end on the ⁇ X side) is placed on the electrode pallet 104. Furthermore, the other end (the end on the + X side) of the electrode 30 is placed on the sheet pallet 107.
- An electrode holding guide 103 is disposed under the electrode 30. That is, in the work space A, the electrode holding guide 103 is disposed between the stage 101 and the electrode 30. Then, the electrode holding guide 103 is rotated around the rotation axis 103a. In FIG. 10, the electrode holding guide 103 rotates around the rotation axis 103a along the Y direction. In the workspace A, the electrode holding guide 103 is flipped up in the direction of arrow C.
- the electrode holding guide 103 moves upward, and the electrode holding state shown in FIG. 11 is obtained.
- the electrode holding guide 103 is disposed below the electrode 30 in the work space A.
- the electrode holding guide 103 lifts the electrode 30.
- the sheet holding guide 106 moves to the vicinity of the sheet holding side surface 160a.
- the electrode 30 is held in a state along the electrode holding portion 102 of the electrode holding portion 102. That is, the electrode 30 is in a state along the electrode holding portion 102 and is held between the electrode holding portion 102 and the electrode holding guide 103.
- the electrode holding guide 103 by rotating the electrode holding guide 103, the electrode mounting state and the electrode holding state are switched. That is, by rotating the electrode holding guide 103 around the rotation shaft 103a, the electrode 30 can be held in a state where it is lifted from the sheet pallet 107. In the electrode holding state, the electrode 30 is held in a state along the electrode holding side surface 102a. That is, the plurality of electrodes 30 are sandwiched between the electrode holding side surface 102 a and the electrode holding guide 103.
- FIG. 11 shows the configuration of the sheet holding state and the electrode holding state. That is, in FIG. 11, the electrode 30 is in a state of being flipped up by the electrode holding guide 103, and the stacked body 51 is in a state of being lifted up by the sheet holding guide 106. From this state, the sheet 50 and the electrode 30 are alternately tilted. That is, the process of defeating one sheet 50 and the process of depressing one electrode 30 are alternately repeated. By doing in this way, the sheet-like secondary battery 500 shown in FIG. 1, FIG. 2 is manufactured.
- the sheet stacking jig 100 has an electrode turning bar 105 and tweezers 108.
- the tweezers 108 is an example of a sheet gripping member provided for gripping one sheet 50. As shown in FIG. 6, the tweezers 108 grips the end portion of the sheet 50 a held by the sheet holding unit 160. By operating the tweezers 108 holding the end of the sheet 50a toward the work space A, one sheet 50a can be turned. Specifically, as shown by an arrow D in FIG. 12, by pulling out one sheet 50 to the lower side of the sheet holding guide 106 using the tweezers 108, the sheet 50 by the sheet holding unit 160 and the electrode holding guide 103 is used. Is released. As a result, one sheet 50 is brought down on the sheet pallet 107. In this manner, by separating one sheet 50 from the stacked body 51 held by the sheet holding unit 160, the sheets 50 are arranged one by one on the sheet pallet 107 in the work space A.
- the electrode turning bar 105 is inserted into the groove 102b.
- the insertion direction of the electrode turning bar 105 is the Y direction.
- the electrode turning bar 105 is inserted between the electrode 30 a and the electrode holding portion 102.
- the electrode turning bar 105 is operated so as to be separated from the electrode holding side surface 102a.
- the electrode 30 is pulled down on the sheet pallet 107 by pulling one electrode 30 below the electrode holding guide 103 using the electrode turning bar 105. It is. Thereby, the holding of the electrode 30 by the electrode holding part 102 and the electrode holding guide 103 is released. Therefore, the electrode 30 is disposed on the sheet 50 disposed on the work space A.
- the groove 102b into which the electrode turning bar 105 is inserted is formed along the Y direction. Further, as shown in FIG. 5, the plurality of electrodes 30 are shifted from each other in the Y direction. Therefore, the electrode turning bar 105 can turn the electrodes 30 one by one. That is, by deepening the insertion position of the electrode turning bar 105 in the Y direction, the electrode turning bar 105 can turn the electrodes 30 one by one from the ⁇ Y side electrode 30. Specifically, first, the electrode turning bar 105 is inserted to the position of the most -Y side electrode 30 to release the holding of the first electrode 30. Next, the electrode turning bar 105 is inserted from the ⁇ Y side to the position of the second electrode 30 to release the holding of the second electrode 30. Thus, by gradually inserting the electrode turning bar 105 into the groove 102b, the holding of the electrodes 30 can be released one by one in order from the -Y side.
- the sheet-like secondary battery 500 shown in FIGS. 1 and 2 is manufactured by alternately arranging the sheets 50 and the electrodes 30 in the work space A.
- the magnetic circuit 20 is used to separate the sheet 50 from the laminated body 51.
- the gap between the sheets 50 is widened on the sheet holding guide 106 (see the dotted circle in FIG. 12).
- the sheet holding unit 160 has a magnetic circuit 20 for separating one sheet 50 from the laminated body 51. Then, the sheet holding unit 160 separates the sheets 50 one by one from the stacked body 51 using the magnetic force of the magnetic circuit 20.
- FIGS. 14 and 15 the configuration of the magnetic circuit provided in the sheet holding unit 160 will be described with reference to FIGS. 14 and 15.
- FIG. 14 is a side view schematically showing the configuration of the sheet holding unit 160 and the magnetic circuit 20.
- FIG. 15 is a plan view schematically showing the configuration of the sheet holding unit 160 and the magnetic circuit 20 as viewed from the work space A side.
- the state of the laminated body 51 before separating the sheet 50 is referred to as a “non-separated state”.
- the state of the laminated body 51 after the sheet 50 is separated is referred to as a “separated state”.
- the sheet holding unit 160 includes the lever 12 (see FIG. 15) and the magnetic circuit 20. As shown in FIG. 2, the sheet holding unit 160 is provided with a lever 12 on the side surface along the XZ plane on the + Y side. As will be described later, the lever 12 is provided to slide the slide portion 25 of the magnetic circuit 20 along the Z direction.
- the magnetic circuit 20 is accommodated in the sheet holding unit 160.
- the magnetic circuit 20 includes a permanent magnet 21, a first yoke 22, and a slide portion 25.
- the slide portion 25 includes a second yoke 23 and a nonmagnetic material 24.
- the magnetic circuit 20 has a plurality of permanent magnets 21.
- the plurality of permanent magnets 21 are arranged side by side in the first direction in the sheet holding side surface 160a. 14 and 15, the Z direction is set as the first direction, and a plurality of permanent magnets 21 are arranged along the X direction.
- the first direction is not limited to the Z direction.
- a direction along the sheet holding side surface 160a can be set.
- the “direction along the sheet holding side surface 160a” includes, in addition to the Z direction described above, a direction inclined from the Z direction to the + Y side and a direction inclined from the Z direction to the ⁇ Y side.
- the plurality of permanent magnets 21 are arranged so that the same poles of adjacent magnets face each other.
- the S pole is arranged on the + Z side and the N pole is arranged on the ⁇ Z side.
- the N pole is arranged on the + Z side and the S pole is arranged on the ⁇ Z side.
- the first and second permanent magnets 21 from the top are arranged so that the south poles face each other.
- the second and third permanent magnets 21 from the top are arranged so that the N poles face each other.
- the third and fourth permanent magnets 21 are arranged so that the south poles face each other.
- FIG. 14 shows an example in which four permanent magnets 21 are arranged side by side, but the number of permanent magnets 21 is not particularly limited.
- the magnetic force of the first permanent magnet from the top is the strongest, and the magnetic forces of the second to fourth permanent magnets from the top are set to be weaker than the first permanent magnet.
- the first yoke 22 is disposed on both ends of each permanent magnet 21. That is, the permanent magnets 21 and the first yokes 22 are alternately arranged in the Z direction. In FIG. 14, five first yokes 22 are arranged along the Z direction. The first yoke 22 controls the direction of the magnetic lines of force from the permanent magnet 21.
- the slide portion 25 is disposed on the ⁇ X side of the permanent magnet 21. That is, the slide portion 25 is disposed between the permanent magnet 21 and the laminated body 51 in the X direction.
- the slide part 25 has a second yoke 23 and a nonmagnetic material 24.
- the second yoke 23 controls the flow of magnetic lines of force from the permanent magnet 21. The lines of magnetic force from the permanent magnet 21 cannot pass through the nonmagnetic material 24.
- the nonmagnetic material 24 is disposed at a position corresponding to the first yoke 22.
- the second yoke 23 is disposed at a position corresponding to each permanent magnet 21. In the Z direction, the nonmagnetic material 24 and the second yoke 23 are alternately arranged.
- the slide portion 25 has five second yokes 23 and five nonmagnetic materials 24.
- the permanent magnet 21 and the second yoke 23 are approximately the same size. In the Z direction, the permanent magnet 21 and the second yoke 23 are arranged at the same position. In the Z direction, the first yoke 22 and the nonmagnetic material 24 have substantially the same size. Moreover, the 1st yoke 22 and the nonmagnetic material 24 are arrange
- the magnetic force from the permanent magnet 21 through the first yoke 22 can be increased. It is possible to prevent the magnetic force from the permanent magnet 21 via the second yoke 23 from reaching the first yoke 22.
- Such an arrangement of the slide part 25 shown in FIG. 14 is referred to as an “initial state” in the following description.
- the second yoke 23 is arranged between the permanent magnet 21 and the laminated body 51 in the X direction. Further, the nonmagnetic material 24 is disposed between the first yoke 22 and the laminated body 51 in the X direction.
- FIG. 16 is a side cross-sectional view schematically showing the configuration in the separated state.
- the slide part 25 is attached to the sheet holding part 160 so as to be movable in the Z direction. That is, the slide unit 25 slides in the Z direction (first direction) within the sheet holding unit 160. Specifically, by operating the lever 12, the slide part 25 slides along the Z direction.
- FIG. 16 shows a state in which the slide unit 25 is slid. Such an arrangement of the slide portion 25 shown in FIG. 16 is referred to as a “slide state” in the following description.
- the relative positions of the second yoke 23 with respect to the permanent magnet 21 and the first yoke 22 and the nonmagnetic material 24 with respect to the permanent magnet 21 and the first yoke 22 change.
- the sliding portion 25 is moved by almost half of the total size of the permanent magnet 21 and the first yoke 22 in the Z direction. Therefore, the nonmagnetic material 24 moves to a position corresponding to the permanent magnet 21. More specifically, the nonmagnetic material 24 moves to a position corresponding to the permanent magnet 21.
- the nonmagnetic material 24 moves in the Z direction to a central position between the north pole and the south pole of the permanent magnet 21 (a dotted line between the north pole and the south pole in FIG. 16).
- the nonmagnetic material 24 is disposed at the center position of the permanent magnet 21 in the Z direction.
- the second yoke 23 moves to a position corresponding to the first yoke 22.
- the size of the second yoke 23 in the Z direction is larger than that of the first yoke 22. Therefore, the second yoke 23 extends from a position corresponding to the first yoke 22 to a position corresponding to the permanent magnet 21.
- each of the second yokes 23 is not disposed at a position corresponding to both poles of the permanent magnet 21.
- the second yoke 23 that is second from the bottom is located only at a position corresponding to the first yoke 22 and the south pole of the permanent magnet 21.
- the third second yoke 23 from the bottom is located only at the position corresponding to the first yoke 22 and the north pole of the permanent magnet 21.
- the second yoke 23 extends from a position corresponding to the first yoke 22 to a position corresponding to one magnetic pole of the permanent magnet 21.
- FIG. 17 is a side view showing a configuration in a non-separated state.
- FIG. 18 is a side view showing the configuration in the separated state. That is, FIG. 17 shows the lines of magnetic force F in the non-separated state shown in FIG. 14, and FIG. 18 shows the lines of magnetic force G in the separated state shown in FIG.
- one second yoke 23 is arranged at a position corresponding to the N pole and S pole of one permanent magnet 21. Accordingly, the magnetic field lines F from the permanent magnet 21 pass through the second yoke 23. That is, the lines of magnetic force F emitted from the north pole of the permanent magnet 21 pass through the second yoke 23 and return to the south pole of the permanent magnet 21. Accordingly, no magnetic force is generated on the ⁇ X side from the slide portion 25. Therefore, no magnetic force is applied to the stacked body 51.
- one second yoke 23 is arranged at a position corresponding to the same polarity of the two permanent magnets 21.
- the third second yoke 23 from the bottom is formed from the N pole of the second permanent magnet 21 from the bottom to the position corresponding to the N pole of the third permanent magnet 21 from the bottom.
- a nonmagnetic material 24 is disposed between two adjacent second yokes 23. The lines of magnetic force G do not pass through the inside of the nonmagnetic material 24. Therefore, the magnetic field lines G extending from the N pole of the permanent magnet 21 pass through the surface of the second yoke 23.
- the magnetic force line G passes through the space on the ⁇ X side of the nonmagnetic material 24 and returns to the S pole of the permanent magnet 21.
- the magnetic field lines G have a trajectory like a parabola. Accordingly, the magnetic lines of force G pass through the slide portion 25 and reach the stacked body 51. Therefore, a magnetic force is applied to the stacked body 51.
- the magnetic circuit 20 three or more permanent magnets 21 are arranged in the Z direction. Then, in the Z direction, the magnetic force of the permanent magnets 21 arranged at the central portion and the lower end portion of the sheet holding side surface 160a is weaker than the magnetic force of the permanent magnet 21 arranged at the upper end portion of the sheet holding side surface 160a. Yes.
- the magnetic force on the upper end portion of the sheet 50 becomes stronger than the magnetic force on the central portion and the lower end portion of the sheet 50. Therefore, the plurality of sheets 50 can be appropriately warped. Thereby, since the gap between the sheets 50 can be widened at the upper end portion of the sheet 50, the sheet 50 can be easily separated from the stacked body 51.
- the sheets 50 can be separated from the laminated body 51 one by one. That is, when turning the sheet 50 with the tweezers 108, two or more sheets 50 are not turned together. It becomes easy to pinch the end of the sheet 50 with the tweezers 108. As described above, the single sheet 50 can be easily separated from the stacked body 51 by the magnetic circuit 20 of the sheet holding unit 160. Therefore, the sheets 50 can be easily taken from the laminated body 51 one by one.
- the amount of warpage of the sheet 50 can be adjusted by changing the strength of the magnetic force of the uppermost permanent magnet 21 (permanent magnet 21 disposed at the upper end portion of the sheet holding side surface 160a).
- the magnetic force can be adjusted depending on the size of the first yoke 22 and the second yoke 23.
- the amount of warpage of the sheet 50 can be adjusted by the amount of slide of the slide portion 25. It is preferable to treat the sheet 50 with a time and magnetic force that do not cause the sheet 50 to be magnetized.
- the magnetic field lines may be strong or weak, but in principle, any magnet can be used regardless of the type.
- the sheet holding unit 160 and the electrode holding unit 102 are disposed opposite to each other on the stage 101. That is, in the present embodiment, since the conveying device that sucks and conveys the sheet 50, the holding mechanism that holds the sheet 50, and the like are not necessary, the entire apparatus can be downsized. In other words, in this embodiment, the installation space of the apparatus can be reduced.
- the laminated product in which the electrode 30 is inserted between the sheets 50 is manufactured by alternately tilting the sheet 50 and the electrode 30 from the sheet holding unit 160 and the electrode holding unit 102 to the work space A. In this way, a mechanism for picking and placing the sheet 50 can be eliminated. Therefore, it can be manufactured with a small number of parts. Thereby, a laminated product can be manufactured easily.
- one sheet 50 is separated from the laminated body 51 using the magnetic circuit 20.
- one sheet 50 can be easily grasped from the outermost surface of the laminate 51 using the tweezers 108, the sheets 50 can be easily brought down to the work space A one by one. Can do.
- the stacked body 51 in which a plurality of sheets 50 are stacked can be conveyed together. Therefore, it is not necessary to perform the pick-and-place operation for each sheet 50, so that productivity can be improved.
- stacked sheets can be manufactured simply.
- a plurality of electrodes 30 can be transported together. Therefore, productivity can be further improved.
- the end of the sheet 50 is sandwiched between the sheet pallet 107 and the sheet holding unit 160.
- the end of the electrode 30 is sandwiched between the electrode pallet 104 and the electrode holding part 102.
- FIG. 19 is a flowchart showing a method for manufacturing a laminated product.
- the laminated body 51 and the sheet holding unit 160 are installed on the stage 101 (S11). That is, as shown in FIG. 8, the sheet pallet 107 on which the laminated body 51 is placed and the sheet holding unit 160 are fixed to the stage 101. Here, the sheet pallet 107 is attached to the stage 101 so as to contact the positioning block 109. Thereby, it will be in a sheet
- the laminated body 51 is held on the sheet holding unit 160 (S12). That is, as indicated by an arrow B in FIG. 8, the sheet holding guide 106 lifts the stacked body 51 arranged in the work space A. By doing so, the sheet is held, and the laminate 51 is held along the sheet holding side surface 160a as shown in FIG.
- the electrode 30 and the electrode holding part 102 are installed on the stage 101 (S13). That is, as shown in FIG. 10, the electrode pallet 104 on which the plurality of electrodes 30 are placed and the electrode holding unit 102 are fixed to the stage 101. Thereby, it will be in an electrode mounting state and a plurality of electrodes 30 will be arranged in work space A.
- the slide pin 101 a shown in FIG. 7 is inserted into the through hole 104 a of the electrode pallet 104.
- the electrode holding guide 103 is used to hold the plurality of electrodes 30 on the electrode holding unit 102 (S14). That is, as indicated by an arrow C in FIG. 10, the electrode holding guide 103 lifts the plurality of electrodes 30 arranged in the work space A. By doing so, the electrode is held, and the plurality of electrodes 30 are held along the electrode holding side surface 102a as shown in FIG.
- one sheet 50 is separated from the plurality of sheets 50 held between the sheet holding unit 160 and the sheet holding guide 106 (S15). That is, the user or motor rotates the lever 12 to move the slide unit 25 from the initial state to the slide state. Thereby, the some sheet
- seat 50 will be in a separation state from a non-separation state.
- the nonmagnetic material 24 is in a position corresponding to the position between the magnetic poles of the permanent magnet 21 and the second yoke 23 is in a position corresponding to the first yoke 22 in the Z direction.
- Magnetic force generated by the magnetic circuit 20 is applied to the stacked body 51. Therefore, a gap is generated between the end portions of the sheets 50 in the stacked body 51. Accordingly, the sheets 50 can be easily separated from the stacked body 51 one by one. Therefore, the plurality of stacked sheets 50 are warped as shown in FIGS. 12 and 16.
- the non-separated state is a state in which each of the sheets 50 of the laminate 51 is substantially parallel and a gap between the sheets 50 is narrowed.
- the separated state is a state in which the sheets 50 of the stacked body 51 are warped at different angles by the magnetic force of the magnetic circuit 20, and the gap between the sheets 50 is widened.
- steps S11 to S15 is not particularly limited.
- step S11 and step S12 may be performed after performing step S13 and S14.
- the separation process of the sheet 50 in step S15 may be performed before the electrode 30 holding process (step S13) as long as the laminated body 51 is held.
- the sheet 50 and the electrode 30 are alternately tilted (S16).
- one electrode 30 is tilted on the sheet 50.
- one sheet 50 and one electrode 30 are tilted toward the work space A using the tweezers 108 and the electrode turning bar 105.
- the sheet 50 is turned in the direction of the arrow D shown in FIG. By doing so, one sheet 50 can be easily separated from the laminate 51.
- one electrode 30 is tilted, one electrode 30 is turned from the plurality of electrodes 30 in the direction of arrow E shown in FIG. By doing so, one electrode 30 can be easily brought down.
- the sheets 50 and the electrodes 30 are alternately arranged in the Z direction. That is, an example in which the sheet 50 and the electrode 30 are alternately tilted is described.
- the number of electrodes 30 arranged between the sheets 50 is not one, and can be changed according to the design.
- the process of defeating two sheets 50 and the process of defeating one electrode 30 may be performed alternately.
- the electrode 30 is not disposed between some sheets 50.
- the step of tilting one sheet 50 and the step of tilting two or more electrodes 30 may be performed alternately.
- two or more electrodes 30 can be disposed between the sheets 50.
- the number of steps for tilting the sheet 50 and the number of steps for tilting the electrode 30 are changed. By doing so, the number of electrodes 30 sandwiched between the sheets 50 can be changed.
- the electrode pallet 104 is moved (S17). Accordingly, the electrode pallet 104 and the electrode holding unit 102 are moved so as to approach the sheet holding unit 160. Specifically, the slide pin 101a is slid along the elongated hole 101b from the state shown in FIG. As a result, the state shown in FIG. 20 is obtained. Since the slide pin 101a is inserted into the electrode pallet 104 and the electrode holding part 102, the electrode pallet 104 and the electrode holding part 102 move along the + X direction. Therefore, the electrode 30 moves in the + X direction. By doing in this way, the electrode 30 pinched
- the electrode holding guide 103 may be moved in advance from the front of the electrode holding side surface 102a so as not to hinder the movement of the electrode pallet 104.
- the positioning pin 104b may be inserted into the positioning hole 33 where the positioning hole 33 may be formed in the electrode 30.
- the positioning pins 104b are provided on the electrode pallet 104. Thereby, the edge part of the electrode 30 is fixed. For this reason, when the electrode pallet 104 is moved, it is possible to prevent displacement of the electrode 30 with respect to the sheet 50 due to friction between the electrode 30 and the sheet 50. Therefore, by moving the electrode pallet 104, the electrode 30 and the sheet 50 can be overlapped by a predetermined area, and the tab portion 31 can be protruded from the sheet 50 by a predetermined area.
- the electrode turning rod 105 is turned over by turning the electrodes 30 arranged side by side in the Y direction one by one.
- the method of turning the electrodes is not limited to this. Absent.
- the electrode 30 may be tilted by disposing an air ejection hole on the ⁇ X side of the electrode holding portion 102. Specifically, an air ejection hole and an air valve are provided corresponding to each electrode 30.
- the electrodes 30 and the air ejection holes may be arranged in a one-to-one correspondence. Alternatively, one air ejection hole may be arranged for the plurality of electrodes 30.
- a plurality of air valves may be controlled so that air is ejected from the air ejection holes corresponding to the electrode 30 to be tilted.
- the electrodes 30 can be brought down toward the work space A one by one or plural by air from the air ejection holes. By doing in this way, the process of defeating the electrode 30 can be easily automated.
- the plurality of electrodes 30 may not be arranged side by side in the Y direction, but the plurality of electrodes 30 may be held in an overlapping manner.
- the magnetic circuit 20 substantially the same as the magnetic circuit 20 accommodated in the sheet holding unit 160 is accommodated in the electrode holding unit 102 along the electrode holding side surface 102a.
- the electrode 30 is formed of a magnetic material.
- the insertion direction of the electrode 30 may be two or more.
- the sheet 50 may be inserted not only from the ⁇ X side but also from at least one of the + Y side and the ⁇ Y side. That is, the tab portion 31 is arranged on the second end side or the third end side of the sheet 50.
- the electrode holding unit 102 may be added to the above-described sheet stacking jig 100 so as to be directed to the work space A from at least one of the + Y side and the ⁇ Y side.
- FIG. 21 is a diagram schematically showing the magnetic circuit 20. Since the basic configuration of the sheet stacking jig 100 is the same as that of the first embodiment, the description thereof is omitted as appropriate.
- the permanent magnet 21 shown in FIG. 18 and the like is replaced with an electromagnet 26. Moreover, since the magnetic lines of force are generated by the electromagnet 26, the slide portion 25 can be omitted.
- a plurality of electromagnets 26 are arranged between the plurality of first yokes 22.
- the plurality of electromagnets 26 are solenoid coils having the Z direction as an axis. Therefore, in the Z direction, one end of the electromagnet 26 is an S pole and the other end is an N pole.
- the plurality of electromagnets 26 are connected to the power supply 28 on a one-to-one basis via the switch 27. The direction of the flowing current is opposite between the adjacent electromagnets 26. That is, in the two adjacent electromagnets 26, the positive electrode and the negative electrode of the power source 28 are connected oppositely. Therefore, the plurality of electromagnets 26 are magnets arranged so that the same poles face each other.
- the magnetic lines of force G similar to those of the first embodiment can be generated by causing a current to flow from each power supply 28 to each electromagnet 26. Therefore, as in the first embodiment, the sheets 50 can be easily separated from the stacked body 51 one by one. In the present embodiment, the separation state and the non-separation state can be switched only by turning ON / OFF the switch 27. A mechanism for sliding the second yoke 23 and the nonmagnetic material 24 becomes unnecessary. Therefore, the apparatus configuration can be simplified. Further, the amount of warpage of the sheet 50 may be adjusted by the amount of current flowing from the power source 28 to the electromagnet 26.
- three or more electromagnets 26 are arranged in the Z direction. And, in the Z direction, the magnetic force of the permanent magnets 21 arranged at the center portion and the other end portion of the sheet holding side surface 160a is weaker than the magnetic force of the electromagnet 26 arranged at one end portion of the sheet holding side surface 160a.
- a predetermined current is supplied. Specifically, the current flowing through the electromagnet 26 at one end of the sheet holding side surface 160a is higher than the current flowing through the electromagnet 26 at the central portion and the other end portion of the sheet holding side surface 160a.
- the number of turns of the electromagnet 26 at one end portion of the sheet holding side surface 160a is larger than the number of turns of the electromagnet 26 at the center portion and the other end portion of the sheet holding side surface 160a.
- the adjustment is made so that the three or more electromagnets 26 generate an appropriate magnetic force.
- the magnetic force on the upper end portion of the sheet 50 becomes stronger at the central portion and lower end portion of the sheet 50. Therefore, the plurality of sheets 50 can be appropriately warped. Thereby, since the clearance gap between the sheets 50 can be enlarged in the edge part of the sheet
- the combination of the first direction in which the plurality of permanent magnets 21 are arranged, the magnetic force of each permanent magnet 21, and the slide amount of the slide portion 25 is changed in consideration of the material of the sheet 50 and the like. It can also be made.
- the sheet 50 is made of a material having a low magnetic permeability
- the magnetic force of the permanent magnet 21 disposed at the end portion of the sheet holding side surface 160a is set stronger than the case where the sheet 50 is made of a material having a high magnetic permeability
- a large slide amount can be set.
- the sheet 50 when the sheet 50 is made of a material having a high magnetic permeability, the sheet 50 can be set weaker than the case where the sheet 50 is made of a material having a low magnetic permeability, and the sliding amount can be set small.
- the sheet 50 since the maximum magnetic force at which the sheet 50 is not magnetized can be set according to the material of the sheet 50, the sheet 50 can be efficiently separated from the laminate 51.
- the combination of the first direction in which the plurality of electromagnets 26 are arranged, the amount of current flowing through each electromagnet, and the slide amount of the slide portion 25 is considered in consideration of the remaining number of sheets of the stacked body 51 and the like. Can also be changed. For example, as the remaining number of sheets of the laminated body 51 decreases, the current flowing through the electromagnet 26 can be reduced and the sliding amount can also be reduced. With this setting, a strong magnetic field is not applied to the end portion of the stacked body 51 in which the remaining number of sheets is reduced, so that the sheet 50 can be efficiently separated from the stacked body 51.
- Embodiment 3 FIG.
- the configuration of the magnetic circuit is different from that of the first and second embodiments.
- the configuration of the magnetic circuit 20A used in the sheet separating jig according to the third embodiment will be described with reference to FIG.
- FIG. 22 is a diagram showing a magnetic circuit 20A having a basic principle different from that of the magnetic circuit 20 of FIG.
- the magnetic circuit 20A has a permanent magnet 2, a first yoke 3a arranged on the lower end side of the permanent magnet 2, and a second yoke 3b arranged on the upper end side. Further, the magnetic circuit 20A includes a first nonmagnetic body 4a disposed on one end side of the permanent magnet 2 and a second nonmagnetic body 4b disposed on the other end side in the X direction. .
- the first yoke 3a and the second yoke 3b are arranged so as to face each other along the Z direction with the permanent magnet 2 interposed therebetween. That is, the first yoke 3a is arranged on the ⁇ Z side with respect to the permanent magnet 2, and the second yoke 3b is arranged on the + Z side.
- the permanent magnet 2 has a cylindrical shape with the Y direction as the axial direction.
- the lower semicircle side is the N pole and the upper semicircle side is the S pole.
- the permanent magnet 2 is surrounded by the first yoke 3a, the second yoke 3b, the first non-magnetic body 4a, and the second non-magnetic body 4b, on the sheet holding side surface 160a (not shown in FIG. 22). It is accommodated in the main body 1 so as to be rotatable around the rotation axis 6 along the first direction.
- the first direction indicates, for example, a direction parallel to the Y axis or a direction rotated by a predetermined angle in the ⁇ X direction with respect to the Y axis.
- the position corresponding to the first non-magnetic body 4a arranged on the ⁇ X side of the N pole and the second non-magnetic body 4b arranged on the + X side of the S pole are arranged.
- the laminated body 51 is arranged on the sheet holding side surface 160a in a state of being arranged at the corresponding position.
- the permanent magnet 2 is disposed at this position, the magnetic force lines do not reach the outside from the sheet holding unit 160, and no magnetic force lines reach any of the plurality of sheets 50. Therefore, the magnetic lines of force from the north pole to the south pole of the permanent magnet 2 pass through the first yoke 3a or the second yoke 3b. Therefore, the magnetic field lines C do not pass through the iron holding side surface 160a.
- the N pole is arranged on the + X side and the S pole is arranged on the ⁇ X side.
- the N pole and the S pole may be arranged on the left and right sides. That is, the N pole may be arranged on the ⁇ X side and the S pole may be arranged on the + X side. That is, when the sheet 50 is disposed on the seat holding side surface 160a in a state where one pole of the permanent magnet 2 is disposed at a position corresponding to the first nonmagnetic body 4a and the other pole is disposed at the second nonmagnetic body 4b. Good.
- the permanent magnet 2 is rotated counterclockwise by 90 degrees along the rotation axis 6 so that the N pole corresponds to the first yoke 3a and the S pole to the second yoke 3b. It moves to a corresponding position (that is, the permanent magnet 21 is in the state shown in FIG. 22). As a result, the configuration shown in FIG. 24 is obtained.
- the permanent magnet is arranged at this position, the N pole is strengthened by the first yoke 3a, and the S pole is strengthened by the second yoke 3b, so that the magnetic field lines D from the N pole toward the S pole are It reaches the sheet holding side 160a.
- the gap between the plurality of sheets 50 is generated by the magnetic lines of force D.
- one sheet 50 can be separated from the plurality of sheets 50 by rotating the permanent magnet 2.
- the magnitude of the magnetic force reaching the sheet holding side surface 160a can be changed by the angle at which the permanent magnet 2 is rotated.
- the rotation angle of the permanent magnet 2 can be set smaller than when the number of sheets 50 is large, and the magnetic force reaching the sheet holding side surface 160a can be reduced. Therefore, the rotation angle of the permanent magnet 2 is not limited to 90 degrees and can be set to an arbitrary angle.
- the permanent magnet 2 is rotated by 90 degrees clockwise instead of counterclockwise along the rotation axis 6 so that the N pole corresponds to the second yoke 3b, and the S pole May be moved to a position corresponding to the first yoke 3a.
- the N pole is strengthened by the second yoke 3b and the S pole is strengthened by the first yoke 3a, so that the magnetic lines of force from the N pole toward the S pole are maintained.
- the permanent magnet 2 is rotated along the rotation axis 6 so that one pole of the permanent magnet 2 corresponds to the first yoke 3a and the other pole corresponds to the second yoke 3b. Move to the position to be.
- a magnetic circuit 20A having a magnetic circuit 20A shown in FIGS. Can also be applied.
- the rotary shaft 6 is rotated in the Y direction shown in FIGS. 1 and 2 by a predetermined angle in the ⁇ X direction with respect to the Y axis, or the first direction is shown in FIGS.
- the magnetic circuit 20A is accommodated in the sheet holding unit 160 so as to be set to a direction, a direction inclined to the + Y side from the Z direction, or a direction inclined to the -Y side from the Z direction.
- this invention includes the appropriate deformation
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Abstract
Description
まず、本実施の形態にかかる製造方法による製造される積層製品の一例であるシート状二次電池の構成について、図1、図2を用いて説明する。図1は、シート状二次電池500の構成を示す平面図である。図2はシート状二次電池500の側面断面図である。
本実施の形態では、磁気回路20に永久磁石ではなく、電磁石を用いる。本実施の形態にかかるシート積層治具100に用いられた磁気回路20について、図21を用い説明する。図21は、磁気回路20を模式的に示す図である。なお、シート積層治具100の基本的構成は、実施の形態1と同様であるため、適宜説明を省略する。本実施の形態では、図18等で示した永久磁石21が電磁石26に置き換わっている。また、電磁石26により磁力線を発生させているため、スライド部25を省略することもできる。
例えば、シート50を透磁率の低い材料とする場合、シート保持側面160aの端部に配置される永久磁石21の磁力を、シート50を透磁率の高い材料とする場合と比べて強く設定し、且つ、スライド量を多く設定することもできる。また、シート50が透磁率の高い材料とする場合は、シート50を透磁率の低い材料とする場合と比べて弱く設定し、且つ、スライド量を少なく設定することもできる。
本実施の形態にかかるシート分離治具では、磁気回路の構成が実施の形態1、2と異なっている。ここで、実施の形態3のシート分離治具に用いられる磁気回路20Aの構成について、図22を用いて説明する。図22は、図4の磁気回路20とは異なる基本原理を有する磁気回路20Aを示す図である。
図23に示すように、第1工程では、N極を-X側に配置された第1非磁性体4aに対応した位置、及びS極を+X側に配置された第2非磁性体4bに対応した位置に配置させた状態で、積層体51をシート保持側面160aに配置する。この位置に永久磁石2が配置されている場合、磁力線はシート保持部160から外に達することがなく、複数のシート50の何れにも磁力線が達していない状態である。したがって、永久磁石2のN極からS極に向けての磁力線が、第1継鉄3a、又は第2継鉄3bの内部を通る。よって、磁力線Cはート保持側面160aを通過しない。
第二工程では、回転軸6に沿って、永久磁石2を反時計周りに90度だけ回転させて、N極を第1継鉄3aに対応する位置、及びS極を第2継鉄3bに対応する位置に移動させる(つまり、永久磁石21が図22に示す状態となる)。これにより、図24に示す構成になる。この位置に永久磁石が配置されている場合、N極が第1継鉄3aによって強められ、第S極が第2継鉄3bによって強められるので、N極からS極に向けての磁力線Dがート保持側面160aに達する。
101 ステージ
102 電極保持部
102a 電極保持側面
102b 溝
103 電極保持ガイド
104 電極用パレット
105 電極めくり棒
106 シート保持ガイド
107 シート用パレット
108 ピンセット
109 位置決めブロック
160 シート保持部
160a シート保持側面
30 電極
50 シート
51 積層体
12 レバー
20 磁気回路
21 永久磁石
22 第1継鉄
23 第2継鉄
24 非磁性材
25 スライド部
26 電磁石
27 スイッチ
28 電源
500 シート状二次電池
Claims (13)
- 積層された複数のシート間に部品が配置された積層製品を製造するためのシート積層治具であって、
ステージと、
複数のシートを保持するシート保持側面を有し、前記シート保持側面が前記ステージ上のワークスペースに向かうように前記ステージの上に配置されたシート保持部と、
複数の部品を保持する部品保持側面を有し、前記部品保持側面が前記ワークスペースを介して前記シート保持側面と対向配置されるように、前記ステージの上に配置された部品保持部と、
前記複数のシートを前記シート保持側面に沿って保持するシート保持ガイドと、
前記複数の部品を前記部品保持側面に沿って保持する部品保持ガイドと、
前記シート保持部に設けられ、前記複数のシートの端部において、前記複数のシート間に隙間を生じさせる磁力を発生させる磁気回路と、を備えたシート積層治具。 - 前記シート保持側面に沿った前記複数のシートの内の一枚のシートを前記ワークスペースに向けて倒すよう、前記磁気回路の磁力によって前記複数のシート間に隙間が生じた状態で、前記一枚のシートを把持するシート把持部材をさらに備えた請求項1に記載のシート積層治具。
- 前記磁気回路は、
第1の方向に並んで配置された複数の磁石であって、隣り合う磁石の同極同士が向かうように配置された複数の磁石と、
前記各磁石の両端側に配置された第1継鉄と、
前記各第1継鉄に対応する位置に配置された非磁性材と、
前記磁石に対応する位置に配置された第2継鉄と、を有している請求項1、又は2に記載のシート積層治具。 - 前記複数の磁石が永久磁石であり、
前記第2継鉄と前記非磁性材とが前記第1の方向に移動可能に設けられている請求項3に記載のシート積層治具。 - 前記第1の方向が前記シート保持側面に沿った方向であり、
3つ以上の前記永久磁石が前記第1の方向に並んで配置されており、
前記第1の方向において、前記シート保持側面の一端部に配置された前記永久磁石の磁力より、前記シート保持側面の中央部分、及び前記シート保持側面の他端部に配置された前記永久磁石の磁力が弱い、請求項4記載のシート積層治具。 - 前記複数の磁石が電磁石である請求項3に記載のシート積層治具。
- 3つ以上の前記電磁石が前記第1の方向に並んで配置されており、
前記第1の方向が前記シート保持側面に沿った方向であり、
前記第1の方向において、前記シート保持側面の端部に配置された前記電磁石の磁力より、前記前記シート保持側面の中央部分、及び前記シート保持側面の他端部に配置された前記電磁石の磁力の方が弱くなるように、前記電磁石に電流を流す請求項6に記載のシート積層治具。 - 前記部品保持側面に沿った保持された前記複数の部品と、前記部品保持側面との間に挿入される部品めくり部材をさらに備え、
前記部品めくり部材の挿入方向に沿って、前記複数の部品が並んで配置されており、
前記部品めくり部材が前記複数の部品の中から部品を1つずつ前記ワークスペースに向けて倒していく請求項1~7のいずれか1項に記載のシート積層治具。 - 前記磁気回路は、
永久磁石と、
前記永久磁石の一端部側に配置された第1継鉄と、他端部側に配置された第2継鉄と、
前記永久磁石の上端部側に配置された第1非磁性体と、下端部側に配置された第2非磁性体と、を有している、請求項1、又は2に記載のシート積層治具。 - 前記永久磁石は、前記シート保持側面の第1の方向に沿った回転軸を中心として回転可能である請求項9に記載のシート積層治具。
- 請求項1~8のいずれか1項に記載のシート積層治具を用いて、積層製品を製造する製造方法であって、
前記ステージの上に、前記シート保持部と前記複数のシートとを設置する工程と、
前記ワークスペースに配置された前記複数のシートを持ち上げることで、前記複数のシートを前記シート保持側面に沿って保持する工程と、
前記ステージの上に、前記部品保持部と前記複数の部品とを設置する工程と、
前記ワークスペースに配置された前記複数の部品を持ち上げることで、前記複数の部品を前記部品保持側面に沿って保持する工程と、
前記磁気回路を用いて、前記複数のシートの端部において、前記複数のシート間に隙間を生じさせる工程と、
前記複数のシート間に隙間を生じさせた状態で前記ワークスペースに向けて、前記複数のシートのうちの最表面のシートを倒した後、前記最表面のシートの上に前記複数の部品の内の1つ以上の部品を倒す工程と、を備えた積層製品の製造方法。 - 請求項10に記載のシート積層治具を用いて、積層製品を製造する製造方法であって、
前記永久磁石の一方の極を前記第1非磁性体、及び他方の極を前記第2非磁性体に対応する位置に配置させた状態で、前記シートを前記シート保持側面に保持する第1工程と、
前記永久磁石を前記回転軸に沿って回転させて、前記永久磁石の一方の極を前記第1継鉄に対応する位置、及び他方の極を前記第2継鉄に対応する位置に移動させる第2工程と、を行う積層製品の製造方法。 - 請求項11、又は12に記載の積層製品の製造方法によって、シート状二次電池を製造するシート状二次電池の製造方法であって、
前記シートが充電層を備える単位電池シートであり、
前記部品が前記単位電池シートに接続される電極であるシート状二次電池の製造方法。
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