WO2021024358A1 - 極板製造装置及び極板製造方法 - Google Patents

極板製造装置及び極板製造方法 Download PDF

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Publication number
WO2021024358A1
WO2021024358A1 PCT/JP2019/030747 JP2019030747W WO2021024358A1 WO 2021024358 A1 WO2021024358 A1 WO 2021024358A1 JP 2019030747 W JP2019030747 W JP 2019030747W WO 2021024358 A1 WO2021024358 A1 WO 2021024358A1
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WO
WIPO (PCT)
Prior art keywords
sheet body
electrode plate
strip
width direction
shaped
Prior art date
Application number
PCT/JP2019/030747
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
博雅 上田
茂孝 北森
俊和 畠中
大輔 角田
幸正 山田
Original Assignee
昭和電工マテリアルズ株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 昭和電工マテリアルズ株式会社 filed Critical 昭和電工マテリアルズ株式会社
Priority to PCT/JP2019/030747 priority Critical patent/WO2021024358A1/ja
Priority to JP2021538572A priority patent/JP7316359B2/ja
Publication of WO2021024358A1 publication Critical patent/WO2021024358A1/ja

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
    • B26D1/04—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D3/00—Cutting work characterised by the nature of the cut made; Apparatus therefor
    • 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
    • H01M10/06—Lead-acid accumulators
    • H01M10/12—Construction or manufacture
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/14—Electrodes for lead-acid accumulators
    • H01M4/16—Processes of manufacture
    • 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

  • One aspect of the present invention relates to a plate manufacturing apparatus and a plate manufacturing method.
  • Lead-acid batteries are widely used as secondary batteries for industrial or consumer use, and in particular, lead-acid batteries for electric vehicles (so-called batteries), UPS (Uninterruptible Power Supply), disaster prevention (emergency) radio, telephones, etc. There is a lot of demand for lead-acid batteries for backup.
  • a bag-shaped separator that houses the electrode plate (positive electrode plate or negative electrode plate) may be used.
  • the method of manufacturing the electrode plate housed in such a bag-shaped separator first, the supplied strip-shaped sheet body is cut to obtain a sheet body having a predetermined length. Then, the sheet body is bent to sandwich the electrode plate, and the sheet body is sealed.
  • a technique of this kind for example, in Patent Document 1, in a bent portion of a separator (sheet body), only both side portions excluding the central portion of the separator are pressed to form a pressurized portion, and a paste type electrode plate is sandwiched.
  • a method of manufacturing by sealing with a gear in a bent state and making a notch in the central part of the bent part to form a notch part is described.
  • One aspect of the present invention is to provide a plate manufacturing apparatus and a plate manufacturing method capable of improving manufacturability.
  • the electrode plate manufacturing apparatus is an apparatus for producing an electrode plate housed in a bag-shaped separator, in which the downstream side of the supplied strip-shaped sheet body is cut in a hanging state to form a strip-shaped sheet. A part of the downstream side of the body is received with the cut drop part that drops as the sheet body constituting the separator and the dropped sheet body standing upright, and the electrode plate intersects the sheet body in the vertical direction. It is placed outside the width direction of the sheet body received by the sandwiching part and the sandwiching part that bends the sheet body so that the electrode plate is sandwiched between the sheet bodies, and is movable in the width direction of the sheet body.
  • the guide regulates the position in the width direction of the seat body by moving to a position closer to the seat body when the electrode plate is inserted into the seat body than when the seat body is dropped. ..
  • the sheet body that has been cut and dropped is received, the electrode plate is inserted into the sheet body, and the sheet body is bent so that the electrode plate is sandwiched between the sheet bodies.
  • the position of the sheet body in the width direction is regulated by the guide. Therefore, it is possible to prevent the sheet body and the electrode plate from being displaced from each other, and to accurately sandwich the electrode plate between the sheet bodies. It is possible to improve the manufacturability.
  • the guide is arranged outside in the width direction of the strip-shaped sheet body in a state of hanging at the cutting drop portion, and the drop of the sheet body due to the cutting drop portion is not detected. May be moved so as to reciprocate in the width direction. In this configuration, by moving the guide so as to reciprocate in the width direction, it is possible to promote the fall of the seat body which has not fallen to the sandwiching portion for some reason, for example.
  • the cutting drop portion has a vertical surface facing the sheet body, and the vertical surface may be provided with ribs extending in the vertical direction.
  • the electrode plate manufacturing apparatus may include a seam of the strip-shaped sheet body supplied to the cutting drop part or a detection part for detecting a mark related to the seam.
  • the sheet body including the seam can be discarded to the outside based on the detection result of the detection unit.
  • the sandwiching portion has an insertion port through which the electrode plate to be inserted into the sheet body is inserted, and the length of the insertion port in the width direction of the sheet body is the width of the sheet body. May be smaller than. With this configuration, it is possible to prevent the seat body from entering the insertion slot.
  • the electrode plate manufacturing method is a method of manufacturing an electrode plate housed in a bag-shaped separator, in which the downstream side of the supplied strip-shaped sheet body is cut in a hanging state to form a strip-shaped sheet.
  • a cutting and dropping process in which a part of the downstream side of the body is dropped as a sheet body constituting a separator, and the dropped sheet body is received in an upright position, and the electrode plate intersects the sheet body in the vertical direction. It is provided with a sandwiching step of inserting from the direction of the sheet and bending the sheet body so that the electrode plate is sandwiched between the sheet bodies.
  • a guide arranged outside the width direction of the received sheet body is inserted into the sheet.
  • the sheet body that has been cut and dropped is received, the electrode plate is inserted into the sheet body, and the sheet body is bent so that the electrode plate is sandwiched between the sheet bodies.
  • the position of the sheet body in the width direction is regulated by the guide. Therefore, it is possible to prevent the sheet body and the electrode plate from being displaced from each other, and to accurately sandwich the electrode plate between the sheet bodies. It is possible to improve the manufacturability.
  • the guide is arranged outside in the width direction of the strip-shaped sheet body in the hanging state, and when the drop of the sheet body due to the cutting drop step is not detected, the width thereof.
  • a reciprocating movement step of moving the guide so as to reciprocate in the direction may be provided. In this case, by moving the guide so as to reciprocate in the width direction, it is possible to promote the fall of the sheet body which has not fallen to the sandwiching portion for some reason, for example.
  • the electrode plate manufacturing method may include a detection step for detecting a seam of a strip-shaped sheet body or a mark related to the seam. In this case, based on the detection result of the detection step, for example, the sheet body including the seam can be discarded to the outside.
  • FIG. 1 is a perspective view showing the overall structure and internal structure of the lead storage battery according to the embodiment.
  • FIG. 2 is a perspective view showing a group of plates in the lead-acid battery of FIG.
  • FIG. 3 is a block diagram showing a schematic configuration of the electrode plate manufacturing apparatus according to the embodiment.
  • FIG. 4 is a perspective view showing a base of the electrode plate manufacturing apparatus of FIG.
  • FIG. 5 is a perspective view showing a seam of the strip-shaped sheet body of FIG.
  • FIG. 6 is a schematic front view showing the base of the electrode plate manufacturing apparatus of FIG.
  • FIG. 7 is a schematic side view showing an insertion port of the electrode plate manufacturing apparatus of FIG.
  • FIG. 8A is a front view illustrating an example of a plate manufacturing method.
  • FIG. 8A is a front view illustrating an example of a plate manufacturing method.
  • FIG. 8B is a front view illustrating the continuation of FIG. 8A.
  • FIG. 9 is a front view illustrating the continuation of FIG. 8 (b).
  • FIG. 10A is a side view illustrating the continuation of FIG.
  • FIG. 10B is a side view illustrating the continuation of FIG. 10A.
  • FIG. 11A is a side view illustrating the continuation of FIG. 10B.
  • FIG. 11B is a side view illustrating the continuation of FIG. 11A.
  • FIG. 12 is a front view illustrating an operation example when the seat body includes a seam.
  • the electrode plate housed in the bag-shaped separator is manufactured in the lead storage battery. Therefore, first, the lead storage battery will be described.
  • FIG. 1 is a perspective view showing the overall structure and internal structure of the lead storage battery 1.
  • FIG. 2 is a perspective view showing the electrode plate group 7 in the lead storage battery 1 of FIG.
  • the lead-acid battery 1 includes an electric tank 2 having an opening on the upper surface and a lid 3 having an opening on the electric tank 2.
  • the battery case 2 and the lid 3 are made of polypropylene, for example.
  • the lid 3 is provided with a positive electrode terminal 4, a negative electrode terminal 5, and a liquid port plug 6 for closing the liquid injection port provided in the lid 3.
  • the electrode plate group 7 is configured by laminating a plurality of positive electrode plates 9 and a plurality of negative electrode plates 10 via a separator 11.
  • the positive electrode plate 9 has a positive electrode lattice body (positive electrode current collector) 12 and a positive electrode active material (positive electrode material) 13.
  • the positive electrode lattice body 12 is a lattice body of the positive electrode plate 9.
  • the positive electrode lattice body 12 has a lattice portion 12a and an ear portion 12b that is integrally formed with the lattice portion 12a and protrudes from one end of the lattice portion 12a.
  • the positive electrode active material 13 is an active material of the positive electrode plate 9, and is held by the positive electrode lattice body 12.
  • the negative electrode plate 10 has a negative electrode lattice body (negative electrode current collector) 14 and a negative electrode active material (negative electrode material) 15.
  • the negative electrode lattice body 14 is a lattice body of the negative electrode plate 10.
  • the negative electrode lattice body 14 has a lattice portion 14a and an ear portion 14b that is integrally formed with the lattice portion 14a and protrudes from one end of the lattice portion 14a.
  • the negative electrode active material 15 is an active material of the negative electrode plate 10 and is held by the negative electrode lattice body 14.
  • the positive electrode lattice body 12 and the negative electrode lattice body 14 are formed of, for example, a lead alloy.
  • the electrode plate group 7 has a structure in which a plurality of positive electrode plates 9 and a plurality of negative electrode plates 10 are alternately laminated in a direction substantially parallel to the opening surface of the electric tank 2 via a separator 11. That is, the positive electrode plate 9 and the negative electrode plate 10 are arranged so that their main surfaces extend in the direction perpendicular to the opening surface of the battery case 2.
  • the ears 12b of each of the positive electrode lattices 12 of the plurality of positive electrode plates 9 are collectively welded by the positive electrode side strap 16.
  • the ears 14b of each of the negative electrode lattices 14 of the plurality of negative electrode plates 10 are collectively welded by the negative electrode side strap 17.
  • the positive electrode side strap 16 and the negative electrode side strap 17 are connected to the positive electrode terminal 4 and the negative electrode terminal 5 via the positive electrode column and the negative electrode column 8, respectively.
  • the separator 11 has a function of separating the positive electrode plate 9 and the negative electrode plate 10.
  • the separator 11 has microporous nature so that the electrolytic solution (dilute sulfuric acid) can pass through.
  • the separator 11 is made of a microporous resin sheet. Examples of the resin used for the separator 11 include polyolefin.
  • the separators 11 adjacent to each other via the target electrode plate, which is at least one of the positive electrode plate 9 and the negative electrode plate 10, are formed in a bag shape and accommodate the target electrode plate.
  • the target electrode plate may be a positive electrode plate 9, a negative electrode plate 10, or both a positive electrode plate 9 and a negative electrode plate 10.
  • the negative electrode plate 10 will be described as a target electrode plate housed in the bag-shaped separator 11.
  • the separator 11 includes a bag-shaped base 21, a plurality of ribs 22, and a plurality of mini ribs 23.
  • the plurality of ribs 22 are arranged side by side on the outer surface of the base 21 so as to extend in the longitudinal direction (vertical direction in the drawing).
  • the plurality of mini ribs 23 are formed so as to extend in the longitudinal direction on both sides of the plurality of ribs 22 on the outer surface of the base 21.
  • joint portions 24 for joining the overlapped base portions 21 are formed.
  • the joints 24 are formed on both sides of the plurality of mini ribs 23.
  • Such a separator 11 is manufactured from the sheet body 30 as described later. That is, the sheet body 30 cut to an appropriate length is folded in half so that the surfaces provided with the ribs 22 and the mini ribs 23 are on the outside and overlapped, and the negative electrode plate 10 is arranged between them. .. Both side portions of the sheet body 30 are joined by mechanical sealing, crimping, heat welding, or the like. As a result, a bag-shaped separator 11 containing the negative electrode plate 10 can be obtained.
  • the separator 11 may be a sheet body 30 simply folded in half and overlapped, and both side portions thereof may not be joined.
  • the electric tank 2 is a container for accommodating the electrode plate group 7.
  • the inside of the electric tank 2 is divided into a plurality of sections by a plurality of partition walls (not shown), and a plurality of cell chambers (not shown) are formed.
  • the cell chamber is a space in which the electrode plate group 7 is inserted.
  • the electrode plate group 7 is also referred to as a cell.
  • FIG. 3 is a block diagram showing a schematic configuration of the electrode plate manufacturing apparatus 50.
  • the terms “above” and “below” correspond vertically above and below.
  • the Z direction corresponds to the vertical direction (vertical direction)
  • the X direction corresponds to the horizontal direction orthogonal to the Z direction
  • the Y direction corresponds to the horizontal direction orthogonal to the Z direction and orthogonal to the X direction.
  • the electrode plate manufacturing apparatus 50 is an apparatus for manufacturing a negative electrode plate 10 housed in a bag-shaped separator 11. As shown in FIG. 3, the electrode plate manufacturing apparatus 50 includes a base 61, a seat roller 62, a cutter 63, a cutter drive mechanism 64, and a seam detection sensor (detection unit) 65.
  • FIG. 4 is a perspective view showing the base 61 of the electrode plate manufacturing apparatus 50.
  • FIG. 5 is a perspective view showing a seam of the strip-shaped sheet body 52.
  • the base 61 constitutes a housing having various configurations of the electrode plate manufacturing apparatus 50.
  • the strip-shaped sheet body 52 supplied from the roll 51 is delivered above the strip-shaped sheet body 52 along the X direction.
  • the downstream side of the strip-shaped sheet body 52 that has passed above is held so as to hang down facing the vertical surface 61a, which is one side surface of the base 61.
  • the vertical surface 61a is a YZ surface and faces the back surface (the surface on which the ribs 22 and the mini ribs 23 are not provided) of the strip-shaped sheet body 52.
  • the roll 51 is formed by winding a strip-shaped sheet body 52, which is a material of the separator 11 (FIG. 2). As shown in FIG. 5, when the used roll 51 is replaced with a new roll 51, for example, the end of the strip-shaped sheet body 52o of the used roll 51 is set to the start end of the strip-shaped sheet body 52n of the new roll 51. Connect with color tape 53.
  • the color tape 53 is a tape having a color (for example, blue, green, or red) that can be recognized by the seam detection sensor 65.
  • the color tape 53 constitutes a seam of the strip-shaped sheet body 52.
  • a plurality of ribs 67 extending along the Z direction are provided on the vertical plane 61a at intervals in the Y direction.
  • the rib 67 is a ridge provided on the vertical plane 61a.
  • the top surface of the rib 67 is mirror-finished, and the surface roughness of the top surface of the rib 67 is smaller than the surface roughness of the vertical plane 61a.
  • the seat roller 62 is a drive source that realizes the delivery of the strip-shaped sheet body 52.
  • a servomotor is used as the seat roller 62.
  • the seat roller 62 is fixed to the base 61.
  • the seat roller 62 repeats the operation of feeding the strip-shaped sheet body 52 for a predetermined length and then stopping it.
  • the sheet roller 62 feeds out the strip-shaped sheet body 52 so that the length from the downstream end of the strip-shaped sheet body 52 to the cutting position of the cutter 63 becomes a specified length according to the shape of the separator 11.
  • the seat roller 62 is not particularly limited, and various known seat rollers can be used as long as the strip-shaped sheet body 52 can be delivered.
  • FIG. 6 is a schematic front view showing the base 61 of the electrode plate manufacturing apparatus 50.
  • the cutter 63 cuts the downstream side of the strip-shaped sheet body 52 in the hanging state.
  • the cutter 63 is fixed to the base 61.
  • the cutter 63 is arranged, for example, on the downstream side of the seat roller 62 in the transmission path of the strip-shaped sheet body 52.
  • a push-cutting cutter or the like is used as the cutter 63.
  • the cutter 63 has a movable portion 63a and a fixed portion 63b.
  • the movable portion 63a and the fixed portion 63b are arranged so as to face each other via the strip-shaped sheet body 52.
  • the movable portion 63a is arranged on the back surface side (the rib 22 and the mini rib 23 are not provided) side of the strip-shaped sheet body 52, that is, on the base 61 side.
  • the fixing portion 63b is arranged on the side of the strip-shaped sheet body 52 where the ribs 22 and the mini ribs 23 are provided, that is, on the side opposite to the base 61 side.
  • the cutter 63 moves the movable portion 63a so as to approach the fixed portion 63b, so that a part (of the specified length) of the downstream side of the strip-shaped sheet body 52 in a state of passing through the seat roller 62 and hanging down is formed. Cut so that the part) is separated. As a result, a part of the strip-shaped sheet body 52 on the downstream side freely falls as the sheet body 30.
  • the cutter 63 is not particularly limited, and various known cutters can be used as long as they can cut the strip-shaped sheet body 52.
  • the cutter drive mechanism 64 is a mechanism that drives the movable portion 63a of the cutter 63 so as to approach and separate from the fixed portion 63b.
  • the cutter drive mechanism 64 includes, for example, an air cylinder.
  • the cutter drive mechanism 64 is not particularly limited, and various known drive mechanisms can be used as long as the cutter 63 can be driven.
  • the seam detection sensor 65 is a sensor that detects the color tape 53 as the seam of the strip-shaped sheet body 52.
  • the seam detection sensor 65 is fixed to the base 61.
  • the seam detection sensor 65 is arranged, for example, on the upstream side of the seat roller 62 in the transmission path of the strip-shaped sheet body 52.
  • As the seam detection sensor 65 for example, a color sensor is used.
  • the seam detection sensor 65 is not particularly limited, and various known drive mechanisms can be used as long as it can detect the seam of the strip-shaped sheet body 52.
  • FIG. 7 is a schematic side view showing an insertion port 74 of the electrode plate manufacturing apparatus 50.
  • the electrode plate manufacturing apparatus 50 includes a stopper 71, a stopper drive mechanism 72, an electrode plate pushing mechanism 73, and a sheet body detection sensor 75.
  • the stopper 71 is a part that receives the dropped seat body 30 in an upright position.
  • the stopper 71 is provided so as to freely appear and disappear along the X direction with respect to the vertical surface 61a of the base 61.
  • the stopper 71 receives and supports the sheet body 30 that has fallen along the Z direction with the X direction as the thickness direction in a state of protruding from the vertical surface 61a of the base 61.
  • the stopper 71 has a plate shape with the Z direction as the thickness direction, for example.
  • the stopper drive mechanism 72 is a mechanism for driving the stopper 71 so as to switch between a state of protruding from the vertical surface 61a and a state of being buried in the vertical surface 61a.
  • the stopper drive mechanism 72 is arranged on the base 61.
  • the stopper drive mechanism 72 includes, for example, an air cylinder.
  • the stopper drive mechanism 72 is not particularly limited, and various known drive mechanisms can be used as long as the stopper 71 can be driven.
  • the electrode plate pushing mechanism 73 inserts the negative electrode plate 10 into the sheet body 30 supported by the stopper 71 from the X direction (direction intersecting the vertical direction), and the negative electrode plate 10 is sandwiched between the sheet bodies 30. It is a mechanism for bending 30.
  • the electrode plate pushing mechanism 73 is arranged on the base 61.
  • the electrode plate pushing mechanism 73 includes, for example, a robot cylinder.
  • the electrode plate pushing mechanism 73 is not particularly limited, and various known mechanisms are known as long as the negative electrode plate 10 is inserted into the sheet body 30 and the sheet body 30 can be bent so that the negative electrode plate 10 is sandwiched. A mechanism can be used.
  • the base 61 is provided with an insertion port 74 through which the negative electrode plate 10 to be inserted into the sheet body 30 by the electrode plate pushing mechanism 73 is inserted.
  • the length of the insertion port 74 in the Y direction (the width direction of the seat body 30) is smaller than the width of the seat body 30 (see FIG. 7).
  • the seat body detection sensor 75 is a sensor that detects the fall of the seat body 30.
  • the sheet body detection sensor 75 detects the presence or absence of the sheet body 30 supported by the stopper 71, thereby detecting the sheet body 30 that has been cut by the cutter 63 and dropped.
  • the seat body detection sensor 75 is arranged around the stopper 71.
  • a photoelectric sensor is used as the sheet body detection sensor 75.
  • the sheet body detection sensor 75 is not particularly limited, and various known sensors can be used as long as it can detect the fall of the sheet body 30.
  • the electrode plate manufacturing apparatus 50 includes a guide 81, a guide drive mechanism 83, and a controller 90.
  • a pair of guides 81 are provided.
  • the pair of guides 81 are members of the base 61 extending in the Z direction along the vertical plane 61a with a gap from the vertical plane 61a.
  • the pair of guides 81 have a plate shape with the Y direction as the thickness direction.
  • the pair of guides 81 are provided in at least a partial region between the upper end of the vertical plane 61a and the stopper 71.
  • the pair of guides 81 are located at the respective positions on the outer side of the strip-shaped sheet body 52 in the hanging state in the Y direction, and are arranged at the respective positions on the outer side of the sheet body 30 received by the stopper 71 in the Y direction.
  • the pair of guides 81 are provided so as to be movable in the Y direction. Specifically, when the sheet body 30 is dropped, the pair of guides 81 have a first interval D1 (see FIG. 10A). When the negative electrode plate 10 is inserted into the sheet body 30 by the electrode plate pushing mechanism 73, the pair of guides 81 have a second distance D2 (see FIG. 10B). The second interval D2 is narrower than the first interval D1. For example, the second interval D2 is the width of the sheet body 30 or an interval slightly larger than that. That is, when the negative electrode plate 10 is inserted into the sheet body 30, the pair of guides 81 move to a position closer to the sheet body 30 than when the sheet body 30 is dropped.
  • the configuration in which the pair of guides 81 are movable is not particularly limited, and various known configurations can be used.
  • Such a guide 81 can guide the fall of the seat body 30. Further, the guide 81 is movable to a position close to the seat body 30 to regulate the position or misalignment of the seat body 30 in the Y direction when the negative electrode plate 10 is inserted into the seat body 30. Further, when the sheet body detection sensor 75 does not detect the fall of the sheet body 30, the guide 81 repeatedly moves back and forth in the Y direction.
  • a first regulating plate 85 that regulates the approach of the sheet body 30 to the vertical surface 61a is connected to the pair of guides 81. It is provided as follows.
  • the first regulation plate 85 has a plate shape with the X direction as the thickness direction, and is integrally formed with the pair of guides 81.
  • a second regulation plate 86 that regulates the separation of the seat body 30 from the vertical surface 61a is provided.
  • the second regulation plate 86 has a plate shape with the X direction as the thickness direction, and faces the first regulation plate 85 with a gap.
  • a transmission path for the seat body 30 is defined between the first regulation plate 85 and the second regulation plate 86.
  • the shape and the like of at least one of the first regulation plate 85 and the second regulation plate 86 is not particularly limited, and may not be provided.
  • the guide drive mechanism 83 is a mechanism for moving the pair of guides 81 so that the distance between the pair of guides 81 changes in the Y direction.
  • the guide drive mechanism 83 is arranged on the base 61.
  • the guide drive mechanism 83 includes, for example, a robot cylinder.
  • the guide drive mechanism 83 is not particularly limited, and various known mechanisms can be used as long as the pair of guides 81 can be driven.
  • the controller 90 is an electronic control unit including a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), and the like.
  • the controller 90 can be configured as software in which a program stored in the ROM is loaded on the RAM and executed by the CPU.
  • the controller 90 may be configured as hardware such as an electronic circuit.
  • the controller 90 may be composed of one device or a plurality of devices. When composed of a plurality of devices, one controller 90 is logically constructed by connecting them via a communication network such as the Internet or an intranet.
  • the controller 90 controls various operations of the electrode plate manufacturing apparatus 50.
  • the detection results of the seam detection sensor 65 and the seat body detection sensor 75 are input to the controller 90.
  • the controller 90 controls the seat roller 62, the cutter drive mechanism 64, the stopper drive mechanism 72, the electrode plate pushing mechanism 73, and the guide drive mechanism 83.
  • the controller 90 may include, for example, an HMI (Human Machine Interface), which is an interface for inputting / outputting information to / from an operator.
  • the controller 90 may communicate with at least one of a smart device, a server (cloud server), and the like.
  • the negative electrode plate 10 housed in the bag-shaped separator 11 is manufactured.
  • the strip-shaped sheet body 52 supplied from the roll 51 is sent out by driving the seat roller 62, and the downstream side of the strip-shaped sheet body 52 is hung down.
  • the length from the downstream end of the strip-shaped sheet body 52 to the cutting position of the cutter 63 is set to the specified length according to the shape of the separator 11.
  • the movable portion 63a of the cutter 63 is moved to cut the downstream side of the hanging strip-shaped sheet body 52.
  • a part of the downstream side of the strip-shaped sheet body 52 is freely dropped as the sheet body 30 (cutting and dropping step).
  • the stopper 71 receives and supports the dropped seat body 30 in an upright position.
  • the pair of guides 81 have a wide first interval D1. Due to the presence of the guide 81, the seat body 30 can be aligned with the pair of guides 81, and the seat body 30 can be smoothly dropped straight downward while suppressing the deviation in the Y direction.
  • the guide drive mechanism 83 moves the pair of guides 81 in the Y direction so as to approach each other, and the distance between the pair of guides 81 is set to the narrow second distance D2. That is, the pair of guides 81 are moved to a position closer to the seat body 30 (a position closer to the Y direction) than when the seat body 30 is dropped.
  • the pair of guides 81 are positioned so as to be applied to both sides of the seat body 30 arranged upright. This regulates the position of the seat body 30 in the Y direction.
  • the negative electrode plate 10 is moved from the insertion port 74 in the X direction by the electrode plate pushing mechanism 73 in a state where the pair of guides 81 are positioned so as to be applied to both sides of the sheet body 30.
  • the negative electrode plate 10 is pressed against the negative electrode plate 10 in the center of the sheet body 30 in the Z direction, and the negative electrode plate 10 is inserted into the sheet body 30 from the X direction.
  • the sheet body 30 is folded in half so that the negative electrode plate 10 is sandwiched between the sheet bodies 30 (sandwiching step). After that, both side portions of the sheet body 30 are sealed by the sealing device 59 (see FIG. 3), and then the sheet body 30 is supplied to the subsequent device.
  • the sheet body detection sensor 75 detects the drop of the sheet body 30 due to cutting by the cutter 63.
  • the pair of guides 81 are moved so as to reciprocate in the Y direction before the above-mentioned sandwiching step (reciprocating movement step).
  • the pair of guides 81 may be moved so that the distance in the Y direction changes, or both of the pair of guides 81 may be moved in the same direction in the Y direction while keeping the distance constant.
  • the reciprocating movement step is not performed, or if the fall is detected during the reciprocating movement step, the reciprocating movement is performed. End the moving process.
  • the presence of the color tape 53 in the strip-shaped sheet body 52 supplied from the roll 51 is detected by the seam detection sensor 65 (detection step). Then, when it is determined from the detection result of the seam detection sensor 65 that the falling sheet body 30 contains the color tape 53, the stopper 71 is buried in the vertical surface 61a by the stopper drive mechanism 72 (the stopper 71 is buried in the vertical surface 61a). See FIG. 12). As a result, the sheet body 30 including the color tape 53 is discharged (discarded) to, for example, a disposal box arranged below without being received by the stopper 71.
  • the sheet body 30 that has been cut and dropped is received, the negative electrode plate 10 is inserted into the sheet body 30, and the electrode plate is sandwiched between the sheet bodies 30.
  • the sheet body 30 is bent.
  • the seat body 30 by aligning the seat body 30 with the guide 81, the seat body 30 can be accurately dropped and received.
  • the position of the sheet body 30 in the width direction is regulated by the guide 81. Therefore, it is possible to prevent the sheet body 30 and the negative electrode plate 10 from being displaced from each other, and to accurately sandwich the negative electrode plate 10 between the sheet bodies 30. It is possible to improve the manufacturability.
  • the guide 81 is also located outside the strip-shaped sheet body 52 in the hanging state in the width direction. If the seat body detection sensor 75 does not detect the fall of the seat body 30, the guide 81 is moved so as to reciprocate in the Y direction. As a result, by moving the guide 81 so as to reciprocate in the Y direction, it is possible to promote the fall of the seat body 30 which has not fallen because it is clogged for some reason, for example.
  • the base 61 has a vertical surface 61a facing the sheet body 30.
  • the vertical surface 61a is provided with a rib 67 extending along the Z direction.
  • the rib 67 makes it possible to prevent the sheet body 30 from sticking to the vertical surface 61a due to, for example, static electricity when the sheet body 30 falls.
  • the sheet body 30 has a curl of the roll 51 or the like, such an effect becomes remarkable.
  • the electrode plate manufacturing apparatus 50 includes a seam detection sensor 65 that detects a seam (color tape 53) of the strip-shaped sheet body 52 supplied from the roll 51.
  • the sheet body 30 including the seam can be discarded to the outside by controlling the appearance of the stopper 71 based on the detection result of the seam detection sensor 65, for example.
  • the base 61 has an insertion port 74 through which the negative electrode plate 10 to be inserted into the sheet body 30 is inserted.
  • the length of the insertion port 74 in the Y direction is smaller than the width (dimension in the Y direction) of the sheet body 30.
  • the electrode plate manufacturing method includes a detection step of detecting a seam of the strip-shaped sheet body 52 supplied from the roll 51.
  • the sheet body 30 including the seam can be discarded to the outside by controlling the appearance of the stopper 71, for example, based on the detection result of the detection step.
  • the base 61, the seat roller 62, the cutter 63, and the cutter drive mechanism 64 form a cutting drop portion.
  • the base 61, the stopper 71, the stopper drive mechanism 72, and the electrode plate pushing mechanism 73 form a sandwiching portion.
  • a color tape 53 is used at the seam of the strip-shaped sheet body 52, and the seam is detected by the seam detection sensor 65, but the present invention is not limited to this.
  • the seam may be detected by another device, or instead of or in addition to connecting with the color tape 53, a mark (mark) relating to the seam is given to the strip-shaped sheet body 52, and this mark is detected. May be good.
  • One aspect of the present invention includes a pair of guides 81, but only one of the pair of guides 81 may be provided.
  • the shape of the guide 81 is not limited and may be various shapes.
  • the electrode plate manufacturing apparatus 50 according to one aspect of the present invention, the negative electrode plate 10 and the lead storage battery 1 which are the targets of the electrode plate manufacturing method can be used for an electric vehicle.
  • electric vehicles include forklifts and golf carts.
  • each configuration of the above-described embodiment and the above-mentioned modification may be appropriately combined.
  • the present invention can be modified in various ways without departing from the gist thereof.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Mechanical Engineering (AREA)
  • Secondary Cells (AREA)
  • Cell Separators (AREA)
  • Battery Electrode And Active Subsutance (AREA)
PCT/JP2019/030747 2019-08-05 2019-08-05 極板製造装置及び極板製造方法 WO2021024358A1 (ja)

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PCT/JP2019/030747 WO2021024358A1 (ja) 2019-08-05 2019-08-05 極板製造装置及び極板製造方法
JP2021538572A JP7316359B2 (ja) 2019-08-05 2019-08-05 極板製造装置及び極板製造方法

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4456304A4 (en) * 2022-06-17 2025-09-03 Contemporary Amperex Technology Hong Kong Ltd SEPARATION MEMBRANE ROLL, ELECTRODE ASSEMBLY, BATTERY CELL, BATTERY AND ELECTRICAL APPLIANCE

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5027039A (enrdf_load_stackoverflow) * 1973-07-11 1975-03-20
JPS5353740A (en) * 1976-10-27 1978-05-16 Yuasa Battery Co Ltd Device for producing enclosed battery plate
JPS5425433A (en) * 1977-07-28 1979-02-26 Yuasa Battery Co Ltd Method and apparatus for making cell
JPS60133654A (ja) * 1983-12-21 1985-07-16 Shin Kobe Electric Mach Co Ltd 蓄電池製造法
JP2000306596A (ja) * 1999-04-16 2000-11-02 Japan Storage Battery Co Ltd 電池極板の製造装置
WO2017131027A1 (ja) * 2016-01-26 2017-08-03 株式会社豊田自動織機 電極積層装置及び電極積層方法

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5027039A (enrdf_load_stackoverflow) * 1973-07-11 1975-03-20
JPS5353740A (en) * 1976-10-27 1978-05-16 Yuasa Battery Co Ltd Device for producing enclosed battery plate
JPS5425433A (en) * 1977-07-28 1979-02-26 Yuasa Battery Co Ltd Method and apparatus for making cell
JPS60133654A (ja) * 1983-12-21 1985-07-16 Shin Kobe Electric Mach Co Ltd 蓄電池製造法
JP2000306596A (ja) * 1999-04-16 2000-11-02 Japan Storage Battery Co Ltd 電池極板の製造装置
WO2017131027A1 (ja) * 2016-01-26 2017-08-03 株式会社豊田自動織機 電極積層装置及び電極積層方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4456304A4 (en) * 2022-06-17 2025-09-03 Contemporary Amperex Technology Hong Kong Ltd SEPARATION MEMBRANE ROLL, ELECTRODE ASSEMBLY, BATTERY CELL, BATTERY AND ELECTRICAL APPLIANCE

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