CN115623875A - 电极组件、电池单体、电池以及用电装置 - Google Patents

电极组件、电池单体、电池以及用电装置 Download PDF

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Publication number
CN115623875A
CN115623875A CN202180007973.6A CN202180007973A CN115623875A CN 115623875 A CN115623875 A CN 115623875A CN 202180007973 A CN202180007973 A CN 202180007973A CN 115623875 A CN115623875 A CN 115623875A
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bending
electrode assembly
bent
bending part
blocking
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CN115623875B (zh
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许虎
金海族
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Contemporary Amperex Technology Co Ltd
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Contemporary Amperex Technology Co Ltd
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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
    • H01M10/0587—Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound 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
    • H01M10/05—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
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/052—Li-accumulators
    • H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion 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
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/4235—Safety or regulating additives or arrangements in electrodes, separators or electrolyte
    • 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
    • H01M50/46—Separators, membranes or diaphragms characterised by their combination with electrodes
    • H01M50/461—Separators, membranes or diaphragms characterised by their combination with electrodes with adhesive layers between electrodes and separators
    • 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
    • H01M50/471—Spacing elements inside cells other than separators, membranes or diaphragms; Manufacturing processes thereof
    • 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
    • H01M50/538—Connection of several leads or tabs of wound or folded electrode stacks
    • 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)
  • Materials Engineering (AREA)
  • Secondary Cells (AREA)
  • Cell Separators (AREA)

Abstract

本申请实施例提供一种电极组件、电池单体、电池以及用电装置。本申请实施例的电极组件，包括正极极片和负极极片，正极极片和负极极片沿卷绕方向卷绕并形成卷绕结构，卷绕结构包括弯折区。正极极片和负极极片均包括位于弯折区的多个弯折部，正极极片中的至少一个弯折部为第一弯折部，负极极片中的至少一个弯折部为与第一弯折部相邻的第二弯折部。电极组件设置有第一阻挡件，至少一部分第一阻挡件位于第一弯折部和第二弯折部之间，第一阻挡件用于阻挡从第一弯折部脱出的至少一部分离子嵌入第二弯折部。在第一方向上，第一阻挡件的至少一端超出第一弯折部和第二弯折部，第一方向垂直于卷绕方向。本申请能够提高电池单体的安全性能。

Description

PCT国内申请，说明书已公开。

Claims (23)

  1. PCT国内申请，权利要求书已公开。
CN202180007973.6A 2021-05-12 2021-05-12 电极组件、电池单体、电池以及用电装置 Active CN115623875B (zh)

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PCT/CN2021/093351 WO2022236736A1 (zh) 2021-05-12 2021-05-12 电极组件、电池单体、电池以及用电装置

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CN115623875A true CN115623875A (zh) 2023-01-17
CN115623875B CN115623875B (zh) 2023-12-12

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US (1) US20220367918A1 (zh)
EP (1) EP4117078A4 (zh)
JP (1) JP2023549798A (zh)
KR (1) KR20230084546A (zh)
CN (1) CN115623875B (zh)
WO (1) WO2022236736A1 (zh)

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DE2936202A1 (de) * 1979-09-07 1981-03-19 Varta Batterie Ag, 3000 Hannover Batteriepol fuer hochtemperaturbatterien
JP2001052679A (ja) * 1999-08-03 2001-02-23 Nec Corp 非水電解液二次電池およびその製造方法
KR200289707Y1 (ko) * 2002-06-12 2002-09-19 주식회사 코캄엔지니어링 리튬 2차 전지용 크루드 셀 및 이에 따른 리튬 2차 전지
US20110120529A1 (en) * 2007-08-31 2011-05-26 Moritaka Nakamura Solar cell module
CN103081209A (zh) * 2011-04-11 2013-05-01 松下电器产业株式会社 薄型电池及电池装置
KR20160048698A (ko) * 2014-10-24 2016-05-04 주식회사 아모그린텍 플렉서블 배터리, 이를 포함하는 보조배터리 및 시계줄
CN205992575U (zh) * 2016-07-21 2017-03-01 中航锂电（洛阳）有限公司 正极片和卷绕式锂离子动力电池电芯及锂离子动力电池
CN106848325A (zh) * 2017-02-15 2017-06-13 宁德时代新能源科技股份有限公司 一种二次电池极片，其制备方法，及卷绕式电芯
CN212161994U (zh) * 2020-06-02 2020-12-15 宁德时代新能源科技股份有限公司 电极组件及其制造装置、电池、电池模块、电池组、使用电池的装置
CN112331930A (zh) * 2020-11-10 2021-02-05 珠海冠宇电池股份有限公司 卷芯、电池以及电子产品
CN112467121A (zh) * 2020-12-03 2021-03-09 珠海冠宇电池股份有限公司 一种正极片及其制备方法和应用
CN212810367U (zh) * 2020-08-21 2021-03-26 宁德时代新能源科技股份有限公司 电极组件、电池单体、电池和用电装置

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JP4513125B2 (ja) * 2004-07-22 2010-07-28 Ｔｄｋ株式会社 電気化学デバイス及びその製造方法
JP2018081840A (ja) * 2016-11-17 2018-05-24 株式会社Ｓｏｋｅｎ リチウムイオン二次電池
WO2018155248A1 (ja) * 2017-02-24 2018-08-30 三洋電機株式会社 非水電解質二次電池
CN109473729B (zh) * 2018-11-05 2020-11-13 宁德新能源科技有限公司 电化学装置
CN210006850U (zh) * 2019-08-09 2020-01-31 宁德时代新能源科技股份有限公司 一种电极组件及二次电池
CN111554982B (zh) * 2020-05-11 2021-09-07 珠海冠宇电池股份有限公司 卷绕电芯及其制备方法、电池以及电子产品

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2936202A1 (de) * 1979-09-07 1981-03-19 Varta Batterie Ag, 3000 Hannover Batteriepol fuer hochtemperaturbatterien
JP2001052679A (ja) * 1999-08-03 2001-02-23 Nec Corp 非水電解液二次電池およびその製造方法
KR200289707Y1 (ko) * 2002-06-12 2002-09-19 주식회사 코캄엔지니어링 리튬 2차 전지용 크루드 셀 및 이에 따른 리튬 2차 전지
US20110120529A1 (en) * 2007-08-31 2011-05-26 Moritaka Nakamura Solar cell module
CN103081209A (zh) * 2011-04-11 2013-05-01 松下电器产业株式会社 薄型电池及电池装置
KR20160048698A (ko) * 2014-10-24 2016-05-04 주식회사 아모그린텍 플렉서블 배터리, 이를 포함하는 보조배터리 및 시계줄
CN205992575U (zh) * 2016-07-21 2017-03-01 中航锂电（洛阳）有限公司 正极片和卷绕式锂离子动力电池电芯及锂离子动力电池
CN106848325A (zh) * 2017-02-15 2017-06-13 宁德时代新能源科技股份有限公司 一种二次电池极片，其制备方法，及卷绕式电芯
CN212161994U (zh) * 2020-06-02 2020-12-15 宁德时代新能源科技股份有限公司 电极组件及其制造装置、电池、电池模块、电池组、使用电池的装置
CN212810367U (zh) * 2020-08-21 2021-03-26 宁德时代新能源科技股份有限公司 电极组件、电池单体、电池和用电装置
CN112331930A (zh) * 2020-11-10 2021-02-05 珠海冠宇电池股份有限公司 卷芯、电池以及电子产品
CN112467121A (zh) * 2020-12-03 2021-03-09 珠海冠宇电池股份有限公司 一种正极片及其制备方法和应用

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EP4117078A4 (en) 2024-01-17
KR20230084546A (ko) 2023-06-13
US20220367918A1 (en) 2022-11-17
WO2022236736A1 (zh) 2022-11-17
EP4117078A1 (en) 2023-01-11
CN115623875B (zh) 2023-12-12
JP2023549798A (ja) 2023-11-29

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