CN114467211A - 电极组件及其相关电池、装置、制造方法和制造装置 - Google Patents

电极组件及其相关电池、装置、制造方法和制造装置 Download PDF

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CN114467211A
CN114467211A CN202080069573.3A CN202080069573A CN114467211A CN 114467211 A CN114467211 A CN 114467211A CN 202080069573 A CN202080069573 A CN 202080069573A CN 114467211 A CN114467211 A CN 114467211A
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negative
positive
winding
negative electrode
positive electrode
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梁成都
许虎
金海族
曾毓群
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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
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  • Manufacturing & Machinery (AREA)
  • Secondary Cells (AREA)
  • Materials Engineering (AREA)
  • Connection Of Batteries Or Terminals (AREA)
  • Primary Cells (AREA)

Abstract

一种电极组件(10)及其相关电池(400)、装置、制造方法和制造装置(500)，其中，电极组件(10)包括：至少一片正极片(1)和至少一片负极片(2)，所有正极片(1)和所有负极片(2)的数量之和大于等于3；至少一片正极片(1)和至少一片负极片(2)绕卷绕轴线(K)卷绕形成卷绕结构，其中，在卷绕结构中，至少一片正极片(1)的正极片(1)和至少一片负极片(2)中的负极片(2)沿垂直于卷绕轴线(K)的方向叠加设置；其中，至少一片正极片(1)中的每个正极片(1)包括正电极主体部(11)，正极主体部(11)的叠加面的至少部分区域为正极活性物质区(111)，至少一片负极片(2)中的每个负极片(2)包括负极主体部(21)，负极主体部(21)的叠加面的至少部分区域为负极活性物质区(211)，负极活性物质区(211)沿卷绕轴线(K)的两端均超出相邻的正极活性物质区(111)的对应端。

Description

PCT国内申请，说明书已公开。

Claims (17)

  1. PCT国内申请，权利要求书已公开。
CN202080069573.3A 2020-06-02 2020-06-02 电极组件及其相关电池、装置、制造方法和制造装置 Pending CN114467211A (zh)

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CN218602515U (zh) * 2022-08-23 2023-03-10 珠海冠宇电池股份有限公司 一种卷芯和电池

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CN102084533A (zh) * 2008-07-02 2011-06-01 丰田自动车株式会社 电池
CN201408811Y (zh) * 2009-05-27 2010-02-17 佛山市实达科技有限公司 一种大功率锂离子电池的改良结构
JP2011233408A (ja) * 2010-04-28 2011-11-17 Sanyo Electric Co Ltd 非水電解質二次電池
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CN108886128A (zh) * 2016-04-08 2018-11-23 锂能源和电力有限责任两合公司 能量储存装置

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US11978844B2 (en) 2024-05-07
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WO2021243581A1 (zh) 2021-12-09
US20210376372A1 (en) 2021-12-02
KR20220116385A (ko) 2022-08-23
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