CN113826256A - 电芯结构及电池 - Google Patents

电芯结构及电池 Download PDF

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Publication number
CN113826256A
CN113826256A CN202080035737.0A CN202080035737A CN113826256A CN 113826256 A CN113826256 A CN 113826256A CN 202080035737 A CN202080035737 A CN 202080035737A CN 113826256 A CN113826256 A CN 113826256A
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CN
China
Prior art keywords
tab
electrode assembly
pole piece
electrically connected
winding
Prior art date
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Pending
Application number
CN202080035737.0A
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English (en)
Inventor
郭章飞
王茂凤
李魁
何金铧
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Ningde Amperex Technology Ltd
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Ningde Amperex Technology Ltd
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Application filed by Ningde Amperex Technology Ltd filed Critical Ningde Amperex Technology Ltd
Publication of CN113826256A publication Critical patent/CN113826256A/zh
Pending legal-status Critical Current

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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
    • 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
    • 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

Abstract

本申请公开了一种电芯结构及其电池，该电芯结构包括包括由第一极片和第二极片卷绕形成的第一电极组件，及由第三极片和第四极片卷绕形成的第二电极组件。该电芯结构还包括电连接于所述第一极片的第一极耳、电连接于所述第二极片的第二极耳、电连接于所述第三极片的第三极耳及电连接于所述第四极片的第四极耳；其中，所述第一极耳还电连接于所述第三极耳，所述第二极耳还电连接于所述第四极耳。根据本申请的电芯结构，通过两个卷绕型结构的电极组件来组成异性电芯，电芯生产效率高且极片材料利用率高。

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。
CN202080035737.0A 2020-03-31 2020-03-31 电芯结构及电池 Pending CN113826256A (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2020/082314 WO2021195926A1 (zh) 2020-03-31 2020-03-31 电芯结构及电池

Publications (1)

Publication Number Publication Date
CN113826256A true CN113826256A (zh) 2021-12-21

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ID=77927780

Family Applications (1)

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CN202080035737.0A Pending CN113826256A (zh) 2020-03-31 2020-03-31 电芯结构及电池

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CN (1) CN113826256A (zh)
WO (1) WO2021195926A1 (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN218311736U (zh) * 2022-08-31 2023-01-17 无锡先导智能装备股份有限公司 焊接装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201781031U (zh) * 2010-04-29 2011-03-30 上海比亚迪有限公司 一种软包装电池组
CN102983304A (zh) * 2012-12-27 2013-03-20 天津力神电池股份有限公司 聚合物锂离子电池
CN203026608U (zh) * 2013-01-16 2013-06-26 刘志航 一种可弯折使用的锂离子电池
CN103227340A (zh) * 2012-01-31 2013-07-31 三星Sdi株式会社 二次电池
CN206401455U (zh) * 2016-12-27 2017-08-11 宁德新能源科技有限公司 一种卷绕式电芯
CN206401440U (zh) * 2016-12-27 2017-08-11 宁德新能源科技有限公司 一种卷绕式电芯

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201781031U (zh) * 2010-04-29 2011-03-30 上海比亚迪有限公司 一种软包装电池组
CN103227340A (zh) * 2012-01-31 2013-07-31 三星Sdi株式会社 二次电池
CN102983304A (zh) * 2012-12-27 2013-03-20 天津力神电池股份有限公司 聚合物锂离子电池
CN203026608U (zh) * 2013-01-16 2013-06-26 刘志航 一种可弯折使用的锂离子电池
CN206401455U (zh) * 2016-12-27 2017-08-11 宁德新能源科技有限公司 一种卷绕式电芯
CN206401440U (zh) * 2016-12-27 2017-08-11 宁德新能源科技有限公司 一种卷绕式电芯

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