[go: up one dir, main page]

WO2022203122A1 - Dispositif de maintien de tension de séparateur pour la fabrication d'une batterie secondaire - Google Patents

Dispositif de maintien de tension de séparateur pour la fabrication d'une batterie secondaire Download PDF

Info

Publication number
WO2022203122A1
WO2022203122A1 PCT/KR2021/007861 KR2021007861W WO2022203122A1 WO 2022203122 A1 WO2022203122 A1 WO 2022203122A1 KR 2021007861 W KR2021007861 W KR 2021007861W WO 2022203122 A1 WO2022203122 A1 WO 2022203122A1
Authority
WO
WIPO (PCT)
Prior art keywords
separator
roll
tension
separation membrane
stack table
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/KR2021/007861
Other languages
English (en)
Korean (ko)
Inventor
강전영
김경호
강상원
이정구
장영덕
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Datechnology Co Ltd
Original Assignee
Datechnology Co Ltd
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 Datechnology Co Ltd filed Critical Datechnology Co Ltd
Publication of WO2022203122A1 publication Critical patent/WO2022203122A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
    • 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
    • H01M50/403—Manufacturing processes of separators, membranes or diaphragms

Definitions

  • the present invention relates to an apparatus for manufacturing a secondary battery, and more particularly, to a secondary battery manufacturing device capable of maintaining a constant tension of the separator in the process of stacking a plurality of electrodes on the separator while continuously transferring the separator of the secondary battery at a predetermined pitch It relates to a separation membrane tension maintaining device.
  • a chemical cell is a battery composed of a pair of electrodes and an electrolyte of a positive electrode plate and a negative electrode plate, and the amount of energy that can be stored varies according to materials constituting the electrode and the electrolyte.
  • These chemical batteries have a very slow charging reaction, so they are divided into primary batteries used only for one-time discharge and secondary batteries that can be reused through repeated charging and discharging. is in an increasing trend.
  • the secondary battery is applied to various technical fields throughout the industry due to its advantages, and is widely used as an energy source for advanced electronic devices such as wireless mobile devices, as well as conventional gasoline using fossil fuels. And it is attracting attention as an energy source for hybrid electric vehicles, which are being proposed as a way to solve air pollution of diesel internal combustion engines.
  • Such a secondary battery is formed in a form in which a positive electrode plate, a separator, and a negative electrode plate are sequentially stacked and dipped in an electrolyte solution.
  • a method of placing a negative plate and a positive plate on a separator and winding them to form a jelly-roll is widely used.
  • a method of stacking a negative plate, a positive plate, and a separator in an appropriate order is widely used.
  • the separator is supplied in a zigzag folded form on a stack table, and the zigzag folded separator This is a method in which a negative electrode plate and a positive electrode plate are alternately inserted therebetween and stacked.
  • the separator is also made in a long-width type with a long left and right length.
  • the present invention is to achieve the above object, and an object of the present invention is a separator for manufacturing a secondary battery capable of maintaining a constant tension of the separator when it is supplied to be folded in a zigzag on a stack table while transporting a long-width separator at a predetermined pitch. To provide a tension retainer.
  • a separator tension maintaining device for manufacturing a secondary battery according to the present invention for achieving the above object includes a separator supply unit for supplying a separator; a plurality of centering rolls arranged in pairs above the center of the stack table for stacking electrodes on the separator and supported while passing the separator transferred from the separator supply unit to the stack table; a lamination unit installed to reciprocate in a lateral direction between the centering roll and the stack table and stacking a separator on the stack table in a zigzag manner; and a fixed roll disposed between the separation membrane supply unit and the centering roll and in close contact with one surface of the separation membrane, and disposed at a location spaced apart from the fixed roll by a predetermined distance to closely contact the other side of the separation membrane and interlock with the movement of the lamination unit
  • a tension compensating unit comprising a rotating roll for laterally moving the separation membrane while rotating at a predetermined angle with respect to the fixed roll in the lateral direction, and a rotating means for rotating the rotating roll in a
  • the rotating roll rotates in one direction with respect to the fixed roll to increase the transport distance of the separator, and when the lamination unit moves from the center of the stack table to both ends of the stack table, the rotating roll
  • the operation of the rotating means may be controlled to reduce the transport distance of the separation membrane while returning to the initial position of the ting roll.
  • the separator tension maintaining device is disposed between the separator supply unit and the tension compensation unit, and linearly reciprocates up and down a certain distance in connection with the stacking operation of the separator by the stacking unit and the separator supply of the separator supply unit. It may further include a buffer roll for moving the separation membrane up and down.
  • the lamination unit includes a plurality of interference avoiding rolls installed in pairs on the upper side of the stack table and guiding the separation membrane while horizontally reciprocating in both directions at a predetermined distance based on the center of the stack table;
  • a plurality of swing rolls installed to form a pair on the lower side and stacked on the stack table by transferring the separator in both directions while reciprocating for a certain distance in the same direction as the interference avoidance roll around the swing axis aligned at the center of the stack table.
  • the separation membrane tension maintaining device of the present invention is installed between the buffer roll and the tension compensating unit to rotate at a predetermined angle about a horizontal axis according to the tension of the separation membrane to maintain the tension of the separation membrane.
  • the swing roll of the lamination unit rotates reciprocally in both directions with respect to the stack table, following the change in tension applied to the separator when the separator is stacked on the stack table, so that the rotating roll is rotated in the lateral direction within a certain angle range.
  • the tension of the separation membrane can be adjusted uniformly by rotating it.
  • the tension of the separator can be maintained constant even on the upstream side of the tension compensating unit.
  • FIG. 1 is a view showing the configuration of a separator tension maintaining device for manufacturing a secondary battery according to an embodiment of the present invention.
  • FIG. 2 is a view showing an operation example of the separator tension maintaining device for manufacturing a secondary battery shown in FIG. 1 .
  • FIG. 3 is a view showing another operation example of the separator tension maintaining device for manufacturing a secondary battery shown in FIG. 1 .
  • the separator tension maintaining device for manufacturing a secondary battery includes a separator supply unit 10 , a buffer roll 20 , and a dancer roll for tension maintenance. roll) 30 , a tension compensation unit 40 , a plurality of centering rolls 50 , and a lamination unit 60 .
  • the separation membrane supply unit 10 is a component for supplying the separation membrane S in the required amount to the cell stack, and the separation membrane S is wound in a roll form in the unwinder 11 and the unwinder 11 . It includes a plurality of feeder rolls 12 for transferring the wound separation membrane S at a predetermined pitch. Any one of the plurality of feeder rolls 12 is rotated by a motor (not shown) while transferring the separation membrane S at a constant pitch.
  • the buffer roll 20 is installed to move the separation membrane S while linearly reciprocating a predetermined distance in the vertical direction between the separation membrane supply unit 10 and the tension compensation unit 40, and the separation membrane by the lamination unit 60 It moves up and down in connection with the stacking operation of (S) and supply of the separator (S) from the separator supply unit (10). That is, the swing roll 62 of the stacking unit 60 rotates from one end of the stack table 1 toward the center, so that no tension is applied to the separation membrane S in the swing roll 62 and loosen (see FIG. 3 ). ) When the separation membrane (S) is supplied from the feeder roll 12, the buffer roll 20 moves upward to increase the moving distance of the separation membrane (S).
  • the swing roll 62 of the stacking unit 60 rotates from the center to one end of the stack table 1 so that the separator S is pulled downward (see FIG. 3 ), and the separator S in the feeder roll 12 ) is not supplied, the buffer roll 20 moves downward to reduce the length of the separation membrane S.
  • a plurality of buffer guide rolls 21 for guiding the separation membrane S may be installed on both sides of the buffer roll 20 .
  • the buffer roll 20 On the downstream side of the buffer roll 20, that is, between the buffer roll 20 and the tension compensating unit 40, it is installed to rotate at a predetermined angle about the horizontal axis according to the tension of the separation membrane S to maintain the tension of the separation membrane.
  • a dancer roll 30 for maintenance is installed.
  • the dancer roll 30 for maintaining tension is rotating by the tension applied to the separation membrane (S) by the pneumatic cylinder, and functions to uniformly fine-tune the tension, and can be configured by applying a known dancer roll.
  • the tension compensating unit 40 is disposed in the separation membrane S movement path between the separation membrane supply unit 10 and the centering roll 50 to respond to the change in tension of the separation membrane S by the lamination unit 60, the separation membrane By moving (S) in the lateral direction in a certain range, it is to act to adjust the tension.
  • the tension compensating unit 40 is disposed between the separation membrane supply unit 10 and the centering roll 50 and has a fixed roll 41 that is in close contact with one surface of the separation membrane, and the fixed roll 41 is spaced apart by a predetermined distance.
  • the rotating means includes a motor (not shown) operated by a control device (not shown) of the cell stack system of the secondary battery, and the motor (not shown) is directly connected to the central axis of the rotating roll 42 or is a gear or Power is transmitted through a power transmission member such as a belt to rotate the rotating roll 42 in a predetermined angle range.
  • the fixed roll 41 is fixedly installed on the moving path of the separation membrane S, and the separation membrane S is in close contact with the opposite side of the rotation direction of the rotating roll 42 so that when the rotating roll 42 rotates, the separation membrane (S) acts to support
  • the rotating roll 42 serves to compensate the tension by moving the separation membrane S in the lateral direction while rotating in a predetermined angular range around the fixed roll 41 by a rotating means.
  • the rotating roll 42 is disposed below the fixed roll 41, and when the fixed roll 41 and the rotating roll 42 are arranged in the vertical direction up and down, the initial position of the rotating roll 42 is , as the separation membrane (S) is pulled as it rotates in one direction from this initial position, the tension increases.
  • the centering roll 50 is fixedly installed on the movement path of the separation membrane S between the tension compensation unit 40 and the lamination unit 60 and serves to support the separation membrane S while guiding it downward.
  • the plurality of centering rolls 50 are arranged in pairs in the lateral direction, and the separation membrane S is supported while passing between the plurality of centering rolls 50 arranged in pairs.
  • the lamination unit 60 is installed to reciprocate in the lateral direction between the centering roll 50 and the stack table 1 , and is configured to stack the separator S on the stack table 1 in a zigzag manner.
  • the stacking unit 60 is installed to form a pair on the upper side of the stack table 1 and guides the separator S while horizontally reciprocating at a predetermined distance in both directions based on the center of the stack table 1 .
  • the interference avoidance roll 61 is installed to form a pair on the lower side of the interference avoidance roll 61, and the interference avoidance roll 61 is centered on a swing shaft 63 aligned at the center of the stack table 1 ) and a plurality of swing rolls 62 that are stacked on the stack table 1 by transferring the separation membrane S in both directions while reciprocating a predetermined distance in the same direction.
  • the interference avoidance roll 61 moves in the same direction as the movement direction of the swing roll 62, and when a picker (not shown) transfers an electrode (anode plate or anode plate) onto the stack table 1 and stacks them, the separator (S) ) to prevent interference with the picker (not shown).
  • the interference avoidance roll 61 may reciprocate horizontally by a known linear motion device such as a linear motion device to which a linear motor is applied, or a linear motion device to which a ball screw and a servo motor are applied, or a linear motion device to which a pneumatic cylinder is applied.
  • the swing roll 62 leads and moves the separation membrane S while reciprocating in both directions in a predetermined angular range around the swing shaft 63 by a rotational motion device such as a motor to move the separation membrane S to the stack table 1 ) and laminated on the upper surface in a zigzag manner.
  • a rotational motion device such as a motor to move the separation membrane S to the stack table 1
  • the separation membrane tension maintaining device having the configuration as described above operates as follows.
  • the feeder roll 12 rotates by a certain amount, the separation membrane S wound on the unwinder 11 is unwound and fed at a predetermined pitch.
  • the swing roll 62 of the stacking unit 60 rotates in one side direction of the stack table 1 about the swing axis 63 to lead the separator S to be stacked on the stack table 1 .
  • the rotating roll 42 of the tension compensation unit 40 rotates in the lateral direction and pulls the separation membrane (S) from the upper side of the centering roll 50 in the lateral direction to increase the tension.
  • the feeder roll 12 rotates and the separation membrane S is fed at a constant pitch.
  • the buffer roll 20 moves upward, the movement path of the separation membrane S is increased, thereby compensating for tension with the feeder roll 12.
  • Tension applied to the separation membrane (S) between the units (40) is kept constant.
  • the rotating roll of the tension compensating unit 40 (42) rotates in the opposite direction to the previous one to gradually reduce the tension applied to the separation membrane (S) from the upper side of the centering roll 50 to keep the tension constant.
  • the swing roll 62 of the stacking unit 60 reciprocates in both lateral directions with respect to the stack table 1 to stack the separator S on the stack table 1, which is applied to the separator S.
  • the tension of the separation membrane (S) can be constantly adjusted by rotating the rotating roll 42 in a lateral direction in a predetermined angle range in accordance with the change in tension.
  • the buffer roll 20 moves up and down while tension Even on the upstream side of the compensation unit 40 , the tension of the separation membrane S may be constantly maintained.
  • the separator S is stretched because the tension applied to the separator S can be constantly maintained in the process of stacking the separator S on the stack table 1 in a zigzag manner while transferring the separator S at a constant pitch and stacking the electrodes thereon. or to prevent folding.
  • the present invention relates to an apparatus for manufacturing a secondary battery, in particular, by continuously transferring a separator at a predetermined pitch to supply a separator on a stack table, and sequentially stacking a plurality of electrodes on a separator stacked in a zigzag on the stack table to form a secondary battery It can be applied to the device for manufacturing the cell of

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Secondary Cells (AREA)

Abstract

La présente invention concerne un dispositif de maintien de tension de séparateur pour fabriquer une batterie secondaire, le dispositif étant apte à maintenir une tension constante d'un séparateur lorsqu'un séparateur de type large est alimenté pour être plié en zigzag sur une table d'empilement tout en étant transféré à un pas prédéterminé. Le dispositif de maintien de tension de séparateur pour fabriquer la batterie secondaire, selon la présente invention, peut comprendre : une unité d'alimentation de séparateur pour alimenter le séparateur ; une pluralité de rouleaux de centrage, qui sont disposés par paires au-dessus de la partie centrale de la table d'empilement, permettant aux électrodes d'être empilées sur le séparateur, de telle sorte que le séparateur transféré de l'unité d'alimentation de séparateur à la table d'empilement est supporté tout en passant à travers celui-ci ; une unité d'empilement, qui effectue un mouvement de va-et-vient dans la direction latérale entre les rouleaux de centrage et la table d'empilement pour empiler le séparateur en zigzag sur la table d'empilement ; et une unité de compensation de tension comprenant un rouleau fixe, qui est disposé entre l'unité d'alimentation de séparateur et les rouleaux de centrage de façon à être en contact étroit avec une surface du séparateur, un rouleau rotatif, qui est disposé à une position espacée d'une distance prédéterminée du rouleau fixe de façon à être en contact étroit avec l'autre surface du séparateur et est relié au mouvement de l'unité d'empilement pour déplacer le séparateur dans la direction latérale tout en tournant à un angle prédéterminé dans la direction latérale par rapport au rouleau fixe, et un moyen de rotation pour faire tourner les rouleaux rotatifs dans la direction latérale à l'intérieur d'une plage angulaire prédéterminée.
PCT/KR2021/007861 2021-03-23 2021-06-23 Dispositif de maintien de tension de séparateur pour la fabrication d'une batterie secondaire Ceased WO2022203122A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR10-2021-0037538 2021-03-23
KR20210037538 2021-03-23
KR1020210081120A KR102426466B1 (ko) 2021-03-23 2021-06-22 이차전지 제조용 분리막 장력유지장치
KR10-2021-0081120 2021-06-22

Publications (1)

Publication Number Publication Date
WO2022203122A1 true WO2022203122A1 (fr) 2022-09-29

Family

ID=82606394

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2021/007861 Ceased WO2022203122A1 (fr) 2021-03-23 2021-06-23 Dispositif de maintien de tension de séparateur pour la fabrication d'une batterie secondaire

Country Status (2)

Country Link
KR (1) KR102426466B1 (fr)
WO (1) WO2022203122A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102565423B1 (ko) * 2023-01-02 2023-08-11 주식회사 지에스아이 전극조립체를 제조하기 위한 장치
DE212024000144U1 (de) * 2023-02-15 2025-09-18 Sk On Co., Ltd. Elektrodenplatten-Stapelvorrichtung
KR102697162B1 (ko) * 2024-05-02 2024-08-21 동진기업(주) 필름의 텐션을 일정하게 유지하는 인슐레이터 필름 공급 댄서유닛
EP4645488A1 (fr) * 2024-05-02 2025-11-05 Grob-Werke GmbH & Co. KG Dispositif et procédé d'alimentation en forme de z d'une bande de séparateur à un processus d'empilement avec commande de tension de bande

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20140015994A (ko) * 2012-07-27 2014-02-07 삼성에스디아이 주식회사 전극 조립체 권취 장치 및 제어 방법
CN206194903U (zh) * 2016-07-30 2017-05-24 深圳科瑞技术股份有限公司 一种锂电池叠片机隔离膜的放卷控制系统
KR20180001324A (ko) * 2016-06-27 2018-01-04 (주)피엔티 이차전지 분리막 제조 방법 및 제조 장치
KR20180061834A (ko) * 2016-11-30 2018-06-08 (주) 피토 2차전지 제조장치의 권취부 장력제어장치
KR20180071550A (ko) * 2016-12-20 2018-06-28 현대자동차주식회사 연료전지용 막전극접합체의 열처리 방법 및 장치

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100219273B1 (ko) 1996-11-30 1999-09-01 구자홍 플라즈마 디스플레이 제조방법
DE102006010069A1 (de) * 2006-03-04 2007-09-06 Rosink Gmbh + Co Kg Vorrichtung zum Ablegen von Bandmaterial
KR101609420B1 (ko) 2013-08-29 2016-04-05 주식회사 엘지화학 이차전지용 전극시트 이송 장치
KR102256378B1 (ko) 2019-09-11 2021-05-27 주식회사 디에이테크놀로지 이차전지의 셀 스택 제조 시스템 및 방법

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20140015994A (ko) * 2012-07-27 2014-02-07 삼성에스디아이 주식회사 전극 조립체 권취 장치 및 제어 방법
KR20180001324A (ko) * 2016-06-27 2018-01-04 (주)피엔티 이차전지 분리막 제조 방법 및 제조 장치
CN206194903U (zh) * 2016-07-30 2017-05-24 深圳科瑞技术股份有限公司 一种锂电池叠片机隔离膜的放卷控制系统
KR20180061834A (ko) * 2016-11-30 2018-06-08 (주) 피토 2차전지 제조장치의 권취부 장력제어장치
KR20180071550A (ko) * 2016-12-20 2018-06-28 현대자동차주식회사 연료전지용 막전극접합체의 열처리 방법 및 장치

Also Published As

Publication number Publication date
KR102426466B1 (ko) 2022-07-29

Similar Documents

Publication Publication Date Title
WO2022203122A1 (fr) Dispositif de maintien de tension de séparateur pour la fabrication d'une batterie secondaire
KR102256378B1 (ko) 이차전지의 셀 스택 제조 시스템 및 방법
WO2023177062A1 (fr) Dispositif de fabrication d'empilement de cellules de type oscillant de batterie secondaire
KR101933550B1 (ko) 이차전지의 셀 스택 제조 시스템
KR102370758B1 (ko) 이차전지용 셀스택 제조장치의 분리막 공급시스템
WO2019160220A1 (fr) Appareil de fabrication d'empilement à grande vitesse pour batterie secondaire prismatique
WO2020085835A1 (fr) Appareil d'empilement de plaques polaires de batterie secondaire prismatique utilisant un transporteur à bande sous vide, et transporteur à bande sous vide ayant une fonction d'auto-alignement
WO2012074216A2 (fr) Dispositif de pliage pour un ensemble électrodes
KR102324209B1 (ko) 진자운동을 이용한 2차전지스태킹장치
WO2021080101A1 (fr) Appareil et procédé pour améliorer l'aptitude au pliage d'un séparateur dans un équipement de fabrication de cellule de batterie secondaire prismatique
WO2019160305A1 (fr) Appareil de fabrication d'empilement à grande vitesse pour une batterie secondaire
KR20200055404A (ko) 이차전지의 와인딩 방식 셀 스택 제조 장치 및 방법
WO2022270750A1 (fr) Dispositif de séparation et de transfert d'électrodes de batteries secondaires
WO2022080648A1 (fr) Procédé de séchage d'électrode pouvant supprimer le gonflement d'un liant et système de séchage d'électrode l'utilisant
KR101543057B1 (ko) 전극 조립체의 권취 장치
KR20250054038A (ko) 이차전지의 셀 스택 제조장치
WO2023277327A1 (fr) Appareil de manipulation de séparateur pour empilement d'électrodes à un seul côté d'ensemble électrode de batterie secondaire, et procédé de fabrication d'ensemble d'électrode de batterie secondaire l'utilisant
KR102565423B1 (ko) 전극조립체를 제조하기 위한 장치
KR20200113297A (ko) 각형 이차전지용 고속 스택 제조 장치
KR102794963B1 (ko) 이차전지의 셀 스택 제조장치
WO2023068528A1 (fr) Dispositif d'alimentation en film de séparation pour fabrication d'empilement d'éléments
KR102778526B1 (ko) 피봇식 분리막 언와인더를 구비한 극판 적층 장치
WO2024210400A1 (fr) Appareil de fixation de bande et procédé de fixation de bande
KR20200122062A (ko) 이차전지의 셀 스택 및 그 적층 장치 및 방법
KR102882701B1 (ko) 이차전지 제조용 분리막 장력제어장치 및 그 방법

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 21933350

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 21933350

Country of ref document: EP

Kind code of ref document: A1