CN115699398A - 电极组件及其制造方法和制造系统、电池单体、电池及用电装置 - Google Patents

电极组件及其制造方法和制造系统、电池单体、电池及用电装置 Download PDF

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CN115699398A
CN115699398A CN202080102169.1A CN202080102169A CN115699398A CN 115699398 A CN115699398 A CN 115699398A CN 202080102169 A CN202080102169 A CN 202080102169A CN 115699398 A CN115699398 A CN 115699398A
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China
Prior art keywords
bending
section
pole piece
sections
electrode assembly
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CN202080102169.1A
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English (en)
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王红
刘江
刘晓梅
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Contemporary Amperex Technology Co Ltd
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Contemporary Amperex Technology Co Ltd
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Publication of CN115699398A publication Critical patent/CN115699398A/zh
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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
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
    • H01M50/209—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular 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
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/058—Construction or manufacture
    • H01M10/0583—Construction or manufacture of accumulators with folded construction elements except wound ones, i.e. folded positive or negative electrodes or separators, e.g. with "Z"-shaped electrodes or 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
    • H01M10/045—Cells or batteries with folded plate-like electrodes
    • 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
    • H01M10/0459—Cells or batteries with folded separator between plate-like electrodes
    • 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
    • H01M10/052—Li-accumulators
    • 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
    • H01M50/409—Separators, membranes or diaphragms characterised by the material
    • H01M50/411—Organic material
    • H01M50/414—Synthetic resins, e.g. thermoplastics or thermosetting resins
    • 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
    • H01M50/463—Separators, membranes or diaphragms characterised by their shape
    • H01M50/466—U-shaped, bag-shaped or folded
    • 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
    • H01M50/531—Electrode connections inside a battery casing
    • H01M50/533—Electrode connections inside a battery casing characterised by the shape of the leads or tabs
    • 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
    • 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
    • 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

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Secondary Cells (AREA)
  • Connection Of Batteries Or Terminals (AREA)

Abstract

一种电极组件(50)及其制造方法和制造系统、电池单体(40)、电池(10)及用电装置。电极组件(50)包括：第一极片(51)，包括多个折弯段(511)和多个层叠设置的第一层叠段(512)，每个折弯段(511)用于连接两个相邻的第一层叠段(512)，折弯段(511)具有引导部(514)，引导部(514)用于在生产时引导折弯段(511)折弯；多个第二极片(52)，第二极片(52)与第一极片(51)极性相反且包括第二层叠段(522)，每个第二极片(52)的第二层叠段(522)设置于相邻两个第一层叠段(512)之间；隔离膜(53)，用于将第一极片(51)和第二极片(52)隔开，隔离膜(53)包括多个隔离段(531)，每个隔离段(531)设置于相邻的第一层叠段(512)和第二层叠段(522)之间。引导部(514)能够引导第一极片(51)在预定区域折弯，降低第一极片(51)和第二极片(52)偏离预定位置的风险，减少析锂。

Description

PCT国内申请，说明书已公开。

Claims (21)

  1. PCT国内申请，权利要求书已公开。
CN202080102169.1A 2020-12-18 2020-12-18 电极组件及其制造方法和制造系统、电池单体、电池及用电装置 Pending CN115699398A (zh)

Applications Claiming Priority (1)

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PCT/CN2020/137717 WO2022126634A1 (zh) 2020-12-18 2020-12-18 电极组件及其制造方法和制造系统、电池单体、电池及用电装置

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CN115699398A true CN115699398A (zh) 2023-02-03

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US (1) US20220407118A1 (zh)
EP (1) EP4075561B1 (zh)
CN (1) CN115699398A (zh)
WO (1) WO2022126634A1 (zh)

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EP1065743A2 (en) * 1999-06-30 2001-01-03 Mitsubishi Materials Corporation Lithium ion polymer secondary battery and gelatinous polymer electrolyte for sheet battery
CN101150184A (zh) * 2006-09-19 2008-03-26 深圳市比克电池有限公司 一种卷绕式锂二次电池
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CN102637906A (zh) * 2012-04-06 2012-08-15 宁德新能源科技有限公司 卷绕结构锂离子电池的制备方法
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JP2018045902A (ja) * 2016-09-15 2018-03-22 三洋化成工業株式会社 リチウムイオン電池及びその製造方法
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CN110380136A (zh) * 2019-08-29 2019-10-25 东莞塔菲尔新能源科技有限公司 一种卷绕电芯、制备工艺以及锂离子电池

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JP3709495B2 (ja) * 1999-07-15 2005-10-26 三菱マテリアル株式会社 リチウムイオンポリマー二次電池
KR101084075B1 (ko) * 2009-11-03 2011-11-16 삼성에스디아이 주식회사 이차전지 및 그 제조방법
ITPD20120167A1 (it) * 2012-05-24 2013-11-25 Sovema Spa Macchina e procedimento per la realizzazione di celle per accumulatori elettrici e cella per accumulatore elettrico
KR101590217B1 (ko) * 2012-11-23 2016-01-29 주식회사 엘지화학 전극조립체의 제조 방법 및 이를 이용하여 제조된 전극조립체
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Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1065743A2 (en) * 1999-06-30 2001-01-03 Mitsubishi Materials Corporation Lithium ion polymer secondary battery and gelatinous polymer electrolyte for sheet battery
CN101150184A (zh) * 2006-09-19 2008-03-26 深圳市比克电池有限公司 一种卷绕式锂二次电池
CN101150185A (zh) * 2006-09-19 2008-03-26 深圳市比克电池有限公司 一种卷绕式锂二次电池
CN102637906A (zh) * 2012-04-06 2012-08-15 宁德新能源科技有限公司 卷绕结构锂离子电池的制备方法
CN103579684A (zh) * 2012-07-31 2014-02-12 华为技术有限公司 锂离子电池及其电池芯
JP2018045902A (ja) * 2016-09-15 2018-03-22 三洋化成工業株式会社 リチウムイオン電池及びその製造方法
CN110071331A (zh) * 2019-04-25 2019-07-30 四川福来威新能源科技有限公司 一种锂电池及其制备方法
CN110380136A (zh) * 2019-08-29 2019-10-25 东莞塔菲尔新能源科技有限公司 一种卷绕电芯、制备工艺以及锂离子电池

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EP4075561A1 (en) 2022-10-19
US20220407118A1 (en) 2022-12-22
WO2022126634A1 (zh) 2022-06-23
EP4075561A4 (en) 2023-04-26
EP4075561B1 (en) 2023-12-13

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