CN114982033A - 一种电极组件、电池和电子设备 - Google Patents

一种电极组件、电池和电子设备 Download PDF

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Publication number
CN114982033A
CN114982033A CN202080085524.9A CN202080085524A CN114982033A CN 114982033 A CN114982033 A CN 114982033A CN 202080085524 A CN202080085524 A CN 202080085524A CN 114982033 A CN114982033 A CN 114982033A
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CN
China
Prior art keywords
electrode assembly
layer
pole piece
expandable
electrically
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Pending
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CN202080085524.9A
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English (en)
Inventor
刘凯
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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 CN114982033A publication Critical patent/CN114982033A/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
    • 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

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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)
  • Cell Separators (AREA)

Abstract

一种电极组件(100)，电池和电子设备。所述电极组件(100)由第一极片(a)、第二极片(c)和隔膜(b)卷绕而成，其中，所述隔膜(b)设置于所述第一极片(a)和所述第二极片(c)之间；所述电极组件(100)包括平面区域(10)和位于所述平面区域(10)两侧的弯折区域(20)，所述弯折区域(20)层间设置有膨胀材料层，所述膨胀材料层包含可膨胀材料。在弯折区域(20)层间设置含可膨胀材料的膨胀材料层。可以通过一定的诱发行为，使膨胀材料层中的可膨胀材料膨胀，从而填充弯折区域(20)极片间的间隙，以提高电池界面的一致性。

Description

PCT国内申请，说明书已公开。

Claims (18)

  1. PCT国内申请，权利要求书已公开。
CN202080085524.9A 2020-09-30 2020-09-30 一种电极组件、电池和电子设备 Pending CN114982033A (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2020/119706 WO2022067789A1 (zh) 2020-09-30 2020-09-30 一种电极组件、电池和电子设备

Publications (1)

Publication Number Publication Date
CN114982033A true CN114982033A (zh) 2022-08-30

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ID=80949416

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CN202080085524.9A Pending CN114982033A (zh) 2020-09-30 2020-09-30 一种电极组件、电池和电子设备

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CN (1) CN114982033A (zh)
WO (1) WO2022067789A1 (zh)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI246791B (en) * 2003-07-15 2006-01-01 Sony Corp Anode and battery using the same
JP2006278182A (ja) * 2005-03-30 2006-10-12 Sanyo Electric Co Ltd 非水電解質二次電池とその製造方法
KR20080095166A (ko) * 2006-02-21 2008-10-28 파나소닉 주식회사 각형 편평 2차 전지의 제조방법
CN202384439U (zh) * 2011-12-29 2012-08-15 宁德新能源科技有限公司 锂离子电池卷绕结构
CN111725569B (zh) * 2020-06-24 2022-05-13 珠海冠宇电池股份有限公司 一种卷芯和电池

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WO2022067789A1 (zh) 2022-04-07

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