WO2012081331A1 - Procédé de fabrication d'un accumulateur secondaire et dispositif de fabrication - Google Patents

Procédé de fabrication d'un accumulateur secondaire et dispositif de fabrication Download PDF

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Publication number
WO2012081331A1
WO2012081331A1 PCT/JP2011/075547 JP2011075547W WO2012081331A1 WO 2012081331 A1 WO2012081331 A1 WO 2012081331A1 JP 2011075547 W JP2011075547 W JP 2011075547W WO 2012081331 A1 WO2012081331 A1 WO 2012081331A1
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WO
WIPO (PCT)
Prior art keywords
electrode sheet
separator
secondary battery
sheet
manufacturing
Prior art date
Application number
PCT/JP2011/075547
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English (en)
Japanese (ja)
Inventor
福永　徹
Original Assignee
東レエンジニアリング株式会社
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Filing date
Publication date
Application filed by 東レエンジニアリング株式会社 filed Critical 東レエンジニアリング株式会社
Publication of WO2012081331A1 publication Critical patent/WO2012081331A1/fr

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/058—Construction or manufacture
    • H01M10/0585—Construction or manufacture of accumulators having only flat construction elements, i.e. flat positive electrodes, flat negative electrodes and flat separators
    • 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
    • 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
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/056—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
    • H01M10/0564—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes the electrolyte being constituted of organic materials only
    • H01M10/0565—Polymeric materials, e.g. gel-type or solid-type
    • 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 method and apparatus for manufacturing a secondary battery with improved productivity.
  • Patent Document 1 describes a method for manufacturing a secondary battery by a twisting method.
  • an electrode plate composed of a plurality of positive and negative electrode plates is disposed on a continuous separator, and another continuous separator is superposed on the continuous separator and adhered by heating.
  • the continuous separator having the electrode plates attached at predetermined intervals is folded in a fold-like manner so that the electrode plates are alternately overlapped to form a laminated structure, and a secondary battery is manufactured.
  • Patent Document 2 describes a method for manufacturing a secondary battery by a stacking method different from the method described in Patent Document 1.
  • porous separators are stacked on both surfaces, and the cutting part is welded together with the cutting by a cutting mechanism using a punching blade with a heater.
  • the secondary battery is manufactured by laminating the electrode sheet integrated with the separator together with the electrode sheet of the other electrode.
  • Patent Document 2 does not mention a specific stacking procedure when the separator and the electrode sheet are integrated, but in the secondary battery, the positional deviation of the electrode sheet or the separator causes performance deterioration or short circuit. Therefore, it is required that the positive electrode sheet and the negative electrode sheet are alternately laminated via the separator while preventing the positional deviation.
  • an object of the present invention is to provide a method for manufacturing a secondary battery in which the electrode sheet and separator are prevented from being displaced using a relatively simple mechanism, thereby speeding up the electrode sheet stacking process and improving productivity. It is to provide a manufacturing apparatus.
  • a method for manufacturing a secondary battery according to the present invention includes a separator forming step of forming separators on both surfaces of one electrode sheet, the one electrode sheet on which the separator is formed, and another A placement step of alternately placing electrode sheets; a positioning step of positioning the one and other electrode sheets using a guide; and an electrode sheet sticking step of sticking the positioned other electrode sheet to the separator It consists of the method characterized by having.
  • the separator is fixed to both surfaces of the one electrode sheet in close contact with each other in the separator forming step, the one electrode sheet and the separator can be handled integrally.
  • an operation for preventing the positional deviation between the one electrode sheet and the separator becomes unnecessary, the manufacturing process is simplified and speeded up, and the productivity is improved.
  • the separator can be handled integrally with one electrode sheet by the separator forming process, it is complicated to prevent misalignment, deflection, deformation and the like of the thin and poorly rigid separator. It is not necessary to adopt a simple holding mechanism. As a result, it is possible to quickly position one and other electrode sheets with a simple guide structure, thereby realizing cost reduction and productivity improvement.
  • a guide structure is not particularly limited, but movable walls are arranged on four sides of the placed electrode sheet, and the movable wall moves while contacting the outer peripheral portion of the electrode sheet. The structure which adjusts the position of an electrode sheet is mentioned.
  • the one electrode sheet and the other electrode sheet are alternately laminated via the separator. Structure is formed. That is, in this laminated structure, one electrode sheet and another electrode sheet are alternately laminated, and a separator is disposed between the adjacent one electrode sheet and the other electrode sheet. .
  • the one and other electrode sheets are positioned by the positioning step, and the separator is formed on the surface of the one electrode sheet by the separator forming step, and the other positioned electrode sheet is attached to the electrode sheet.
  • the method of sticking another electrode sheet to the separator is not particularly limited, and examples thereof include methods such as fusion, welding, pressure bonding, adhesion, application, tightening, stitching, and laminating. be able to.
  • the separator forming step includes a coating step of applying a gel electrolyte solution on both surfaces of one electrode sheet, and a fixing step of fixing the applied electrolyte layer on the surface of the one electrode sheet. That is, it is preferable that the separator which consists of an electrolyte solution layer is formed on both surfaces of one electrode sheet by apply
  • the electrolytic solution layer applied to the surface of one electrode sheet may be fixed by means of drying, heating, injection of a curing agent, or may be fixed by natural drying. .
  • the permeation time is shortened, liquid leakage is prevented, the electrode sheet is protected by the gel layer, and the amount of electrolyte in each layer is made uniform. It becomes possible to manufacture a secondary battery having high quality and stable battery performance.
  • the gel layer fixed on both surfaces of one electrode sheet by drying etc. can be handled integrally with one electrode sheet, and positional displacement does not occur, so the manufacturing process by applying electrolyte solution is complicated It can be minimized, and the processing and cutting of one electrode sheet can be easily performed.
  • the separator forming step may be an attaching step for attaching the separator sheet to both surfaces of one electrode sheet.
  • the separator is fixed to both surfaces of one electrode sheet while being fixed to prevent displacement, so that the separator can be handled integrally with one electrode sheet, simplifying the manufacturing process and improving productivity. Improvement is realized.
  • the method for attaching the separator sheet to one electrode sheet is not particularly limited, and examples thereof include fusion, welding, pressure bonding, adhesion, tightening, stitching, and laminating methods.
  • the one electrode sheet and the separator sheet are pasted in a state of being pulled out from the roller.
  • the roller By using the roller, it becomes possible to precisely control the conveyance of each sheet, and the separator sheet can be uniformly attached to both surfaces of one electrode sheet.
  • the conveyance of the one electrode sheet and the separator sheet is controlled so that the one electrode sheet does not protrude from the separator sheet in the width direction.
  • the method for producing a secondary battery in the present invention preferably includes a separator cutting step of cutting the separator sheet in a state where the separator sheet is attached to one electrode sheet after the separator sheet is attached.
  • the separator sheet can be processed into a desired size and shape in a state where the separator sheet and the one electrode sheet are integrated, and the degree of freedom in designing the secondary battery is increased.
  • the separator sheet is affixed to one electrode sheet, there is no need to use a pressing mechanism or welding means for fixing the position of the separator sheet to the one electrode sheet at the time of cutting, simplifying the cutting process Is realized.
  • the polarity and size of one and other electrode sheets are not particularly limited.
  • one electrode sheet may be a negative electrode sheet, and the other electrode sheet may be a positive electrode sheet, or vice versa.
  • the size of one and other electrode sheets is not particularly limited, but the size of the separator sheet is the same as or larger than that of the negative electrode sheet in order to prevent short circuit due to contact between the positive electrode sheet and the negative electrode sheet.
  • the size of the negative electrode sheet is the same as or larger than that of the positive electrode sheet.
  • the terminal attached to the positive electrode sheet may protrude from the negative electrode sheet, the positive electrode sheet itself is preferably laminated so as not to protrude from the negative electrode sheet.
  • the method for producing a secondary battery in the present invention preferably includes a permeation step for permeating an electrolytic solution between the laminated one electrode sheet and the other electrode sheet. By infiltrating the electrolytic solution in this way, the amount of the electrolytic solution between the electrodes can be made uniform to prevent uneven injection, and a secondary battery having stable battery performance can be provided.
  • a secondary battery manufacturing apparatus includes separator forming means for forming a separator on both surfaces of one electrode sheet, and the separator is formed on the surface of the one electrode sheet.
  • Separator cutting means for cutting in a state in which the separator is formed, mounting means for alternately stacking the one electrode sheet on which the separator is formed and another electrode sheet, and positioning the one and other electrode sheets using a guide And an electrode sheet sticking means for sticking the other electrode sheet positioned to the separator.
  • the separator can be integrally handled with the one electrode sheet by forming the separator on both surfaces of the one electrode sheet by the separator forming means. Therefore, a complicated pressing mechanism is not required, and cost reduction and speedup of the manufacturing process are realized.
  • the separator sheet is affixed to one electrode sheet, a pressing mechanism and welding means for fixing the position of the separator sheet to the one electrode sheet at the time of cutting become unnecessary, and the separator cutting means can be simplified. Realized.
  • the applied electrolyte layer it is preferable that a separator is formed by fixing.
  • the separator forming means may form a separator by sticking a separator sheet on both surfaces of one electrode sheet. If it does in this way, it will become possible to handle a separator and one electrode sheet integrally by sticking, and simplification of a manufacturing process and improvement of productivity will be realized.
  • the polarities of the one and other electrode sheets are not particularly limited.
  • one electrode sheet may be a negative electrode sheet, and the other electrode sheet may be a positive electrode sheet, or vice versa.
  • the separator can be handled integrally with the one electrode sheet. Therefore, a complicated pressing mechanism is not required, and cost reduction and speedup of the manufacturing process are realized.
  • FIG. 1A and 1B show a separator forming step, a separator cutting step, and a placing step in a method for manufacturing a secondary battery according to an embodiment of the present invention.
  • FIG. 1A is a schematic plan view
  • FIG. FIG. In this embodiment, one electrode sheet is the negative electrode sheet 2 and the other electrode sheet is the positive electrode sheet 8.
  • the negative electrode sheet 2 wound around the outer periphery of the roller 1 a is pulled out from the roller 1 a, and the terminal 3 is formed at one end in the width direction of the negative electrode sheet 2 using the terminal forming means 4.
  • a pair of separator sheets 5 a pulled out from the roller 1 b are pasted on both surfaces of the negative electrode sheet 2 by the separator pasting means 6 as separator forming means, and the separators 5 are formed on both surfaces of the negative electrode sheet 2.
  • the separator sheet 2 itself is controlled so as not to protrude from the separator sheet 5a in the width direction.
  • the negative electrode sheet 2 with the separators 5 attached on both sides is cut to a predetermined size by the separator cutting means 7 and then sent to the placing means 10.
  • the positive electrode sheet 8 wound around the outer periphery of the roller 1c is drawn out from the roller 1c, and the terminal 23 is formed at one end in the width direction of the positive electrode sheet 8 from the terminal material 23a using the terminal forming means 4.
  • the positive electrode sheet 8 on which the terminals 23 are formed is cut into a predetermined size by the sheet cutting means 9 and then sent to the placing means 10.
  • the positive electrode sheet 8 is slightly narrower than the negative electrode sheet 2, and the positive electrode sheet 8 cut to a predetermined size by the sheet cutting means 9 is cut to a predetermined size by the separator cutting means 7.
  • the negative electrode sheet 2 has a slightly smaller area.
  • FIG. 2 shows a laminated structure of the secondary battery manufactured by the secondary battery manufacturing method shown in FIG.
  • the negative electrode sheet 2 has a structure in which negative electrode material layers 12 are provided on both front and back surfaces of a copper foil 11
  • the positive electrode sheet 8 has a structure in which positive electrode material layers 14 are provided on both front and back surfaces of an aluminum foil 13. It has become.
  • terminals 3 and 23 are electrically connected to the exposed portion of the copper foil 11 in the negative electrode sheet 2 and the exposed portion of the aluminum foil 13 in the positive electrode sheet 8, respectively.
  • FIG. 3 is a plan view showing a guide as positioning means used in the method of manufacturing the secondary battery shown in FIG.
  • movable planar walls 17 (17a to 17f) are erected so as to face the four sides of the guide 16, and the movable wall 17 abuts on the outer peripheral portion of a substantially rectangular electrode sheet (not shown).
  • the position of the electrode sheet placed in the center of the guide 16 is adjusted by moving while moving.
  • Each movable wall 17 may operate independently, or may operate simultaneously in cooperation.
  • the positive electrode sheet 8 is slightly smaller than the negative electrode sheet 2, the positive electrode sheet 8 protrudes from the negative electrode sheet 2 during lamination because the displacement is prevented by the movable wall 17 provided to face the four sides. There is nothing.
  • the thin separator 5 having low rigidity is formed on both surfaces of the negative electrode sheet 2 in advance, there is no need to worry about the displacement, deflection, or deformation of the separator 5 due to the contact or movement of the movable wall 17. As a result, it is possible to quickly position the negative electrode sheet 2 and the positive electrode sheet 8 by the movable wall 17, and an improvement in productivity is realized.
  • the guide 16 is installed in the vicinity of the mounting means 10 in FIG. 1, and positioning when the negative electrode sheet 2 cut to a predetermined size and the positive electrode sheet 8 cut to a predetermined size are alternately mounted. Used to do.
  • the negative electrode sheet 2 and the positive electrode sheet 8 on which the separators 5 are formed in advance are alternately placed by the placing means 10 and the negative electrode sheet 2 and the positive electrode sheet 8 are positioned by the guide 16, the negative electrode sheet is obtained.
  • 2 and a positive electrode sheet 8 are laminated in a predetermined position via the separator 5 to form a laminated structure 15. In this laminated structure 15, the negative electrode sheet 2 and the positive electrode sheet 8 are alternately laminated, and the separator 5 is disposed between the adjacent negative electrode sheet 2 and positive electrode sheet 8.
  • the separator 5 is pasted on both surfaces of the negative electrode sheet 2 in advance by the separator pasting means 6, the positive electrode sheet 8 positioned by the guide 16 is pasted on the separator 5 by the electrode sheet pasting means (not shown).
  • the adjacent negative electrode sheet 2 and the positive electrode sheet 8 can be stuck through the separator 5, and the entire laminated structure 15 can be handled integrally.
  • the terminals 3 of the laminated negative electrode sheet 2 are joined together, and the terminals 23 of the laminated positive electrode sheet 8 are joined together. According to such a structure, performance deterioration and short circuit due to displacement of the electrode sheet and separator sheet are prevented in advance, so that a secondary battery having stable battery performance can be provided.
  • FIG. 4A and 4B show a separator forming step, a separator cutting step, and a placing step in a method for manufacturing a secondary battery according to another embodiment of the present invention, wherein FIG. 4A is a schematic plan view, and FIG. 4B is a schematic diagram. It is a front view.
  • an electrolytic solution applying means 18 and a fixing means 19 as separator attaching means are arranged between the terminal forming means 4 and the separator cutting means 7.
  • the gel electrolyte layer 20 applied to both surfaces of the negative electrode sheet 2 by the electrolytic solution applying means 18 is fixed on the surface of the negative electrode sheet 2 by the fixing means 19, and becomes the separator 5 in close contact with both surfaces of the negative electrode sheet 2.
  • a method for fixing the gel layer on the surface of the negative electrode sheet 2 is not particularly limited, and examples thereof include drying and injection of a curing agent. Other embodiments are the same as those in the method for manufacturing the secondary battery shown in FIG. Then, the terminals 3 of the laminated negative electrode sheet 2 are joined together, and the terminals 23 of the laminated positive electrode sheet 8 are joined together. In this way, by forming the separator 5 composed of the gel electrolyte layer on both surfaces of the negative electrode sheet 2, a secondary battery having high quality and stable battery performance is produced while minimizing the complexity of the production process. It becomes possible to do.
  • the method and apparatus for manufacturing a secondary battery according to the present invention can be used as a method and apparatus for manufacturing a lithium ion secondary battery or the like.

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  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Secondary Cells (AREA)
  • Physics & Mathematics (AREA)
  • Dispersion Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Inorganic Chemistry (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Battery Electrode And Active Subsutance (AREA)

Abstract

L'invention concerne un procédé de fabrication d'un accumulateur secondaire, dans lequel une étape de laminage d'une feuille d'électrode est accélérée et la productivité est améliorée du fait que l'on évite le désalignement des feuilles d'électrode et des séparateurs, ainsi qu'un dispositif de fabrication à cette fin. Plus spécifiquement, l'invention concerne un procédé de fabrication d'accumulateur secondaire comprenant : une étape de formation de séparateurs, consistant à former des séparateurs sur les deux côtés d'une première feuille d'électrode ; une étape de mise en place, consistant à placer alternativement des premières feuilles d'électrode sur lesquelles des séparateurs ont été formés et d'autres feuilles d'électrode ; une étape de détermination de position, qui utilise un guide pour déterminer les positions des premières feuilles d'électrode et des autres feuilles ; et une étape de fixation de feuilles d'électrode, consistant à fixer les autres feuilles d'électrode, dont les positions ont été déterminées, sur les séparateurs.
PCT/JP2011/075547 2010-12-16 2011-11-07 Procédé de fabrication d'un accumulateur secondaire et dispositif de fabrication WO2012081331A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2010-280468 2010-12-16
JP2010280468A JP2012129098A (ja) 2010-12-16 2010-12-16 二次電池の製造方法および製造装置

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WO2012081331A1 true WO2012081331A1 (fr) 2012-06-21

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018021263A1 (fr) * 2016-07-28 2018-02-01 三洋電機株式会社 Procédé de fabrication de batterie rechargeable
WO2018163775A1 (fr) * 2017-03-07 2018-09-13 株式会社村田製作所 Procédé de production de batterie secondaire
JP2019003751A (ja) * 2017-06-13 2019-01-10 三洋電機株式会社 二次電池
JP2020102418A (ja) * 2018-12-25 2020-07-02 プライムアースＥｖエナジー株式会社 二次電池用極板群の製造方法、二次電池用極板群、及び二次電池
CN113574710A (zh) * 2019-03-12 2021-10-29 株式会社Lg新能源 二次电池的层压设备和层压方法
EP4012813A1 (fr) * 2020-12-09 2022-06-15 Enovix Operations Inc. Appareil et procédés de production d'électrodes, piles d'électrodes et batteries
US11495784B2 (en) 2020-09-18 2022-11-08 Enovix Operations Inc. Apparatus, systems and methods for the production of electrodes for use in batteries

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JP5775229B2 (ja) * 2012-11-21 2015-09-09 長野オートメーション株式会社 極板をセパレータで挟む装置
KR101586121B1 (ko) * 2013-09-30 2016-01-22 주식회사 엘지화학 전극 가이드를 포함하는 라미네이션 장치
JP6459767B2 (ja) * 2015-05-13 2019-01-30 トヨタ紡織株式会社 電極シートの積層方法
JP6760193B2 (ja) * 2017-04-20 2020-09-23 トヨタ自動車株式会社 電極積層体の製造装置
EP4131556A4 (fr) * 2020-03-30 2024-04-17 Panasonic Intellectual Property Management Co., Ltd. Procédé de production de batterie stratifiée

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JP2000188115A (ja) * 1998-12-22 2000-07-04 Sony Corp 薄型電池
WO2006095579A1 (fr) * 2005-03-07 2006-09-14 Nec Corporation Électrode multicouche, dispositif électrique utilisant l’électrode multicouche et méthode pour les fabriquer

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JPH10275628A (ja) * 1997-03-28 1998-10-13 Japan Storage Battery Co Ltd 電池の製造方法
JPH11185773A (ja) * 1997-12-18 1999-07-09 Sony Corp ゲル状電解質電池
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Cited By (17)

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Publication number Priority date Publication date Assignee Title
CN109478677B (zh) * 2016-07-28 2022-02-08 三洋电机株式会社 二次电池的制造方法
WO2018021263A1 (fr) * 2016-07-28 2018-02-01 三洋電機株式会社 Procédé de fabrication de batterie rechargeable
CN109478677A (zh) * 2016-07-28 2019-03-15 三洋电机株式会社 二次电池的制造方法
US11189860B2 (en) 2016-07-28 2021-11-30 Sanyo Electric Co., Ltd. Method of manufacturing secondary battery
JPWO2018021263A1 (ja) * 2016-07-28 2019-05-23 三洋電機株式会社 二次電池の製造方法
WO2018163775A1 (fr) * 2017-03-07 2018-09-13 株式会社村田製作所 Procédé de production de batterie secondaire
JP2019003751A (ja) * 2017-06-13 2019-01-10 三洋電機株式会社 二次電池
JP2020102418A (ja) * 2018-12-25 2020-07-02 プライムアースＥｖエナジー株式会社 二次電池用極板群の製造方法、二次電池用極板群、及び二次電池
CN113574710A (zh) * 2019-03-12 2021-10-29 株式会社Lg新能源 二次电池的层压设备和层压方法
EP3902049A4 (fr) * 2019-03-12 2022-03-16 Lg Energy Solution, Ltd. Appareil et procédé de stratification pour batterie secondaire
CN113574710B (zh) * 2019-03-12 2023-11-21 株式会社Lg新能源 二次电池的层压设备和层压方法
US11495784B2 (en) 2020-09-18 2022-11-08 Enovix Operations Inc. Apparatus, systems and methods for the production of electrodes for use in batteries
US11811047B2 (en) 2020-09-18 2023-11-07 Enovix Corporation Apparatus, systems and methods for the production of electrodes for use in batteries
US12095072B2 (en) 2020-09-18 2024-09-17 Enovix Corporation Apparatus, systems and methods for the production of electrodes for use in batteries
EP4012813A1 (fr) * 2020-12-09 2022-06-15 Enovix Operations Inc. Appareil et procédés de production d'électrodes, piles d'électrodes et batteries
WO2022125529A1 (fr) * 2020-12-09 2022-06-16 Enovix Operations Inc. Procédé et appareil pour la fabrication d'ensembles électrodes pour piles rechargeables
US11411253B2 (en) 2020-12-09 2022-08-09 Enovix Operations Inc. Apparatus, systems and methods for the production of electrodes, electrode stacks and batteries

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