WO2022045602A1 - Procédé de fabrication de ensemble barre omnibus pour module de batterie, à travers lequel une partie étagée élevée est facilement remplie - Google Patents

Procédé de fabrication de ensemble barre omnibus pour module de batterie, à travers lequel une partie étagée élevée est facilement remplie Download PDF

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Publication number
WO2022045602A1
WO2022045602A1 PCT/KR2021/009845 KR2021009845W WO2022045602A1 WO 2022045602 A1 WO2022045602 A1 WO 2022045602A1 KR 2021009845 W KR2021009845 W KR 2021009845W WO 2022045602 A1 WO2022045602 A1 WO 2022045602A1
Authority
WO
WIPO (PCT)
Prior art keywords
bus bar
jig
manufacturing
battery module
cover film
Prior art date
Application number
PCT/KR2021/009845
Other languages
English (en)
Korean (ko)
Inventor
우상엽
조원선
이광희
김준호
한승호
Original Assignee
한화솔루션 주식회사
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 한화솔루션 주식회사 filed Critical 한화솔루션 주식회사
Publication of WO2022045602A1 publication Critical patent/WO2022045602A1/fr

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Classifications

    • 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
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • 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
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • 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
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • 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
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/20—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for assembling or disassembling contact members with insulating base, case or sleeve
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/20—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for assembling or disassembling contact members with insulating base, case or sleeve
    • H01R43/205—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for assembling or disassembling contact members with insulating base, case or sleeve with a panel or printed circuit board
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
    • 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

Definitions

  • the present invention relates to a method of manufacturing a busbar assembly for a battery module that can easily be filled with a high level difference, and more particularly, the shapes of the surfaces of the lower jig and the upper jig are complementary to the shapes of the lower and upper surfaces of the busbar assembly. Formed to be coupled, it is possible to improve the filling properties of the film of the stepped portion.
  • a battery In order to drive an electric car, a battery is required, and a plurality of battery cells are connected to provide a high-output, large-capacity battery in the electric car. In addition, a plurality of battery cells are connected in series and in parallel.
  • a plurality of connected batteries is commonly referred to as a battery module.
  • a battery module A plurality of connected batteries is commonly referred to as a battery module.
  • a device for sensing the voltage and temperature of a battery cell is called various types, and is generally referred to as a battery sensing module.
  • the battery sensing module is provided with a flexible printed circuit board (FPCB), a busbar, a connector, a frame, and the like. These parts are electrically connected to each other.
  • the flexible printed circuit board (FPCB) serves to sense the voltage and temperature of the cell and transmit a signal to the BMS (Battery Management System).
  • the battery sensing module is provided with a plurality of films (Film) for insulation, circuit protection, and the like.
  • the film is generally positioned to cover both sides of a flexible printed circuit board (FPCB), a busbar, or the like.
  • the film is laminated and attached together with a flexible printed circuit board (FPCB), a busbar, etc., and is pressurized through a jig to produce a battery sensing module.
  • the part 1 is an enlarged actual photograph of the vicinity of a component in a conventional battery sensing module.
  • a film 2 is attached to the component 1 .
  • the part 1 has a protruding portion as shown in FIG. 1 , and in some cases, a non-protruding portion and a step 3 are formed.
  • the present invention relates to a method of manufacturing a busbar assembly for a battery module that can easily be filled with a high level difference, and more particularly, the shapes of the surfaces of the lower jig and the upper jig are complementary to the shapes of the lower and upper surfaces of the busbar assembly. Formed to be coupled, it is possible to improve the filling properties of the film of the stepped portion.
  • a method of manufacturing a bus bar assembly for a battery module comprising: disposing a lower jig; disposing a bus bar assembly on the upper surface of the lower jig: pressing the upper jig toward the bus bar assembly, wherein the shapes of the surfaces of the lower jig and the upper jig are respectively the lower surfaces of the bus bar assembly And characterized in that it is formed to be complementary to the shape of the upper surface.
  • the busbar assembly of the method for manufacturing a busbar assembly for a battery module that can easily be filled with a high level difference according to the present invention is characterized in that it includes a cover film, a busbar, a substrate and a sheet.
  • the cover film of the method for manufacturing a bus bar assembly for a battery module that is easily filled with a high step according to the present invention comprises a lower cover film and an upper cover film respectively coupled to the lower surface and upper surface of the sheet. do.
  • the bus bar of the method for manufacturing a bus bar assembly for a battery module that can easily be filled with a high step according to the present invention includes: a lower bus bar disposed between a lower surface of the sheet and the lower cover film; and an upper bus bar disposed between the upper surface of the sheet and the upper cover film.
  • the substrate of the method for manufacturing a bus bar assembly for a battery module that is easily filled with a high step according to the present invention is disposed between the upper surface of the sheet and the upper cover film and is electrically connected to the bus bar. .
  • the substrate of the method for manufacturing a busbar assembly for a battery module that is easily filled with a high step according to the present invention is characterized in that it is a flexible printed circuit board (FPCB).
  • FPCB flexible printed circuit board
  • the sheet of the method for manufacturing a bus bar assembly for a battery module that is easily filled with a high step difference is characterized in that it includes an insulating film.
  • the method of manufacturing a bus bar assembly for a battery module that is easily filled with a high step difference further includes the step of laminating a rubber between the bus bar assembly and the upper jig or the lower jig.
  • the method for manufacturing a busbar assembly for a battery module that is easily filled with a high level difference further includes laminating a release film between the busbar assembly and the upper jig or the lower jig.
  • the present invention it is possible to improve the filling properties of the film in the high-step difference portion between the protruding part and the film formed in the battery sensing module.
  • 1 is an enlarged actual photograph of the vicinity of a component in a conventional battery sensing module.
  • 15 is an exploded perspective view of a bus bar assembly according to the present invention.
  • a method of manufacturing a battery sensing module that can be easily filled with a high level difference will be described.
  • an assembly excluding the frame in the battery sensing module is referred to as a 'bus bar assembly (A)', and a method of manufacturing the 'bus bar assembly (A)' will be described below.
  • FIG. 14 is an assembled busbar assembly
  • FIG. 15 is a busbar assembly according to the present invention. It is an exploded perspective view.
  • FIG. 2 Please refer to FIG. 2 .
  • the lower jig 100 is disposed.
  • the lower jig 100 has a plate shape, and protruding and recessed portions are formed so that a cover film, a sheet, a flexible printed circuit board, rubber, a release film, etc. to be described later are disposed in the shape of the designed bus bar assembly (A).
  • A designed bus bar assembly
  • the surfaces of the lower jig 100 and the upper jig 1400 to be described later are formed to be complementary to the shapes of the lower and upper surfaces of the bus bar assembly A.
  • the surface of the pressing jig has a flat shape, there is a problem in that when the bus bar assembly A is pressed, the filling property is inevitably reduced in the portion where the step is formed due to the bus bar or the like.
  • the lower jig 100 and the upper jig 1400 can coincide with the surface of the bus bar assembly A to be manufactured, there is an advantage that the cover film can be filled even in the portion where the step is formed.
  • both the rubber and the release film laminated on the lower jig 100 are formed to correspond to the shape of the lower jig 100 , and similarly to the effect of the lower jig 100 , the filling property of the cover film is improved.
  • the lower jig 100 may include, for example, a lower jig frame 110 , a bus bar seating groove 120 , and a plurality of guide pins 130 .
  • a bus bar to be described later may be disposed in the bus bar seating groove 120 , and the guide pin 130 may penetrate the entire bus bar assembly A.
  • the lower rubber 200 is laminated on the upper surface of the lower jig 100 .
  • the lower rubber 200 preferably has a shape corresponding to the surface shape of the lower jig 100 .
  • the rubber Rubber, rubber
  • the rubber has an elastic material.
  • the lower rubber 200 comes into contact with the portion where the step is formed, the lower rubber 200 is bent due to pressure. For this reason, the rubber 200 can press the stepped portion, so that the fillability of the cover film is improved.
  • the lower release film 300 is laminated on the upper surface of the lower rubber 200 .
  • the lower release film 300 preferably has a shape corresponding to the surface shape of the lower jig 100 . For this reason, there is an advantage in that the fillability of the cover film is improved.
  • a release film is a kind of film used for the purpose of product protection. Since the release film is a known technology in the art, a detailed description thereof will be omitted.
  • the lower cover film 400 is laminated on the upper surface of the lower release film 300 .
  • the lower cover film 400 preferably has a shape corresponding to the surface shape of the lower jig 100 . For this reason, there is an advantage in that the fillability of the cover film is improved.
  • a cover film (Cover Film) is also referred to as a coverlay (Coverlay), and performs a protection function and an insulating function of the circuit.
  • the cover film has an adhesive layer, it is possible to adhere and fix components (bus bars, flexible printed circuit boards, etc.) laminated on the upper surface of the cover film.
  • an adhesive layer is formed on the upper surface of the lower cover film 400 , and the worker peels off the protective film protecting the adhesive layer and then laminates the lower cover film 400 on the upper surface of the lower release film 300 .
  • a plurality of lower bus bars 700 are stacked at a previously designed position on the upper surface of the lower cover film 400 .
  • a busbar is a rod-shaped conductor and serves to perform electrical connection. It is connected to a flexible printed circuit board to be described later, and the bus bar is a well-known technology in the relevant field, so a detailed description thereof will be omitted.
  • the sheet 800 is laminated on the upper surface of the lower cover film 400 and the lower bus bar 700 .
  • the sheet 800 serves as a bonding sheet, and is composed of an insulating film 810, an upper sheet 820 and a lower sheet 830 laminated on the upper and lower surfaces of the insulating film 810. It is preferable
  • the top sheet 820 and the bottom sheet 830 have adhesive layers. For this reason, the lower cover film 400 , the upper cover film 1100 , the flexible printed circuit board 1000 , the lower bus bar 700 , and the upper bus bar 900 can be combined.
  • FIG. 8 Reference is made to FIG. 8 .
  • a plurality of upper bus bars 900 are stacked at a previously designed position on the upper surface of the sheet 800 .
  • the lower bus bar 700 and the lower bus bar 700 are generally disposed so as not to be positioned at the same position in the vertical direction, and the description of the bus bar has been described above, and thus a detailed description thereof will be omitted to avoid overlapping description.
  • the substrate 1000 is laminated at a pre-designed position on the upper surface of the sheet 800 .
  • the substrate 1000 may be, for example, a flexible printed circuit board (FPCB).
  • FPCB flexible printed circuit board
  • a flexible printed circuit board is a circuit board that can be bent, and is a well-known technology in the art, and detailed description thereof will be omitted.
  • the flexible printed circuit board 1000 may be electrically connected to the bus bars 700 and 900 and the bus bar plate 1001 .
  • the bus bars 700 and 900 and the bus bar plate 1001 may be coupled, for example, by laser welding, and the bus bar plate 1001 and the flexible printed circuit board 1001 may be coupled, for example, by soldering. there is.
  • Reference numeral '1002' denotes a soldered paste.
  • an upper cover film 1100 is laminated on the sheet 800 , the upper bus bar 900 , and the upper surface of the substrate 1000 .
  • the upper cover film 1100 preferably has a shape corresponding to the surface shape of the upper jig 1400 . For this reason, there is an advantage in that the fillability of the cover film is improved.
  • the upper cover film 1100 has an adhesive layer to adhere and fix parts (bus bars, flexible printed circuit boards, etc.) stacked on the lower surface of the upper cover film 1100 .
  • an adhesive layer is formed on the lower surface of the upper cover film 1100, and the worker peels off the protective film protecting the adhesive layer and then laminates it.
  • FIG. 11 Reference is made to FIG. 11 .
  • the upper release film 1200 is laminated on the upper surface of the upper cover film 1100 .
  • the upper release film 1200 preferably has a shape corresponding to the surface shape of the upper jig 1400 .
  • FIG. 12 Reference is made to FIG. 12 .
  • the upper rubber 1300 is laminated on the upper surface of the upper release film 1200 .
  • the upper rubber 1300 preferably has a shape corresponding to the surface shape of the upper jig 1400 .
  • the upper rubber 1300 is preferably made of the same material as the lower rubber 200 .
  • the lower rubber 200 may fill the lower cover film 400 near the step portion generated due to the height difference between the seat 800 and the lower bus bar 700 in the vertical direction
  • the upper rubber 1300 fills the upper cover film 1100 near the step portion generated due to the height difference in the vertical direction of the sheet 800, the upper bus bar 900, the substrate 1000, the bus bar plate 1001, etc. be able to As such, there is an advantage that the filling properties can be improved on both surfaces.
  • FIG. 13 Reference is made to FIG. 13 .
  • the upper jig 1400 is pressed toward the upper rubber 1300 .
  • the surface of the upper jig 1400 is preferably formed to be complementary to the shape of the upper surface of the bus bar assembly (A) stacked.
  • the cover film can be filled even in the portion where the step is formed.
  • the upper jig 1400 may include, for example, an upper jig frame 1410 and a plurality of guide grooves 1420 .
  • the upper jig frame 1410 may coincide with the lower jig frame 110 as shown in FIG. 13 , and the guide pin 130 partially penetrates the guide groove 1420 to improve the fixability of the bus bar assembly A.
  • FIG. 1 Compared with FIG. 1 , it can be seen that the film is not floating in the vicinity of the step unlike in the prior art. That is, it can be confirmed that the filling properties are improved.
  • the present invention relates to a method of manufacturing a busbar assembly for a battery module that can easily be filled with a high level difference, and more particularly, the shapes of the surfaces of the lower jig and the upper jig are complementary to the shapes of the lower and upper surfaces of the busbar assembly. Formed to be coupled, it is possible to improve the filling properties of the film of the stepped portion.

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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)
  • Microelectronics & Electronic Packaging (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

La présente invention concerne un procédé de fabrication d'un ensemble barre omnibus pour un module de batterie, à travers lequel une partie étagée élevée est facilement remplie. Plus spécifiquement, comme les formes des surfaces d'un gabarit inférieur et d'un gabarit supérieur sont formées de manière à être accouplées de manière complémentaire aux formes de la surface inférieure et de la surface supérieure de l'ensemble barre omnibus, il est possible d'améliorer les propriétés de remplissage d'un film sur une partie étagée.
PCT/KR2021/009845 2020-08-26 2021-07-29 Procédé de fabrication de ensemble barre omnibus pour module de batterie, à travers lequel une partie étagée élevée est facilement remplie WO2022045602A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2020-0108117 2020-08-26
KR1020200108117A KR102485174B1 (ko) 2020-08-26 2020-08-26 고단차부 충진이 용이한 배터리 모듈용 버스바 조립체의 제조방법

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WO2022045602A1 true WO2022045602A1 (fr) 2022-03-03

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PCT/KR2021/009845 WO2022045602A1 (fr) 2020-08-26 2021-07-29 Procédé de fabrication de ensemble barre omnibus pour module de batterie, à travers lequel une partie étagée élevée est facilement remplie

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WO (1) WO2022045602A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102542324B1 (ko) * 2021-06-16 2023-06-13 한국단자공업 주식회사 기판조립체의 제조장치 및 이를 이용한 기판조립체의 제조방법

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5877181B2 (ja) * 2013-08-29 2016-03-02 古河電気工業株式会社 バスバー構造体、電池モジュール
KR20180092595A (ko) * 2017-02-10 2018-08-20 주식회사 엘지화학 전지모듈과 회로 부재를 조립하기 위한 지그
KR102023301B1 (ko) * 2019-01-24 2019-09-19 김종규 배터리용 버스바의 제조방법
US20190348720A1 (en) * 2016-12-27 2019-11-14 Yura Corporation Co., Ltd. Flexible circuit board and frame assembly including same
KR20200058207A (ko) * 2018-11-19 2020-05-27 주식회사 엘지화학 센싱 어셈블리 장착용 지그 및 이를 이용한 배터리 모듈의 조립 방법

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101928065B1 (ko) 2016-12-27 2018-12-11 주식회사 유라코퍼레이션 버스바 어셈블리의 연결 구조

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5877181B2 (ja) * 2013-08-29 2016-03-02 古河電気工業株式会社 バスバー構造体、電池モジュール
US20190348720A1 (en) * 2016-12-27 2019-11-14 Yura Corporation Co., Ltd. Flexible circuit board and frame assembly including same
KR20180092595A (ko) * 2017-02-10 2018-08-20 주식회사 엘지화학 전지모듈과 회로 부재를 조립하기 위한 지그
KR20200058207A (ko) * 2018-11-19 2020-05-27 주식회사 엘지화학 센싱 어셈블리 장착용 지그 및 이를 이용한 배터리 모듈의 조립 방법
KR102023301B1 (ko) * 2019-01-24 2019-09-19 김종규 배터리용 버스바의 제조방법

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KR20220026946A (ko) 2022-03-07

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