CN115943513A - 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
CN115943513A
CN115943513A CN202180042489.7A CN202180042489A CN115943513A CN 115943513 A CN115943513 A CN 115943513A CN 202180042489 A CN202180042489 A CN 202180042489A CN 115943513 A CN115943513 A CN 115943513A
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China
Prior art keywords
negative electrode
negative
layer
bending
current collector
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Pending
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CN202180042489.7A
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English (en)
Inventor
林明峰
史松君
张海明
喻鸿钢
来佑磊
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Contemporary Amperex Technology Co Ltd
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Contemporary Amperex Technology Co Ltd
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Application filed by Contemporary Amperex Technology Co Ltd filed Critical Contemporary Amperex Technology Co Ltd
Publication of CN115943513A publication Critical patent/CN115943513A/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
    • 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
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
    • 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
    • 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

Abstract

本申请公开了一种电极组件、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，正极极片包括正极集流体和设置于正极集流体两个表面的正极活性物质层，负极极片包括负极集流体和设置于负极集流体两个表面的负极活性物质层。正极极片和负极极片经过卷绕后形成弯折区，正极极片包括位于弯折区的第一正极弯折层，负极极片包括位于弯折区的第一负极弯折层，第一正极弯折层位于第一负极弯折层的外侧并与第一负极弯折层相邻设置。第一负极弯折层具有贯穿负极集流体的开孔。

Description

PCT国内申请，说明书已公开。

Claims (12)

  1. PCT国内申请，权利要求书已公开。
CN202180042489.7A 2020-10-27 2021-08-05 电极组件、电池单体、电池以及用电装置 Pending CN115943513A (zh)

Applications Claiming Priority (2)

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CN202022421832.4U CN213692108U (zh) 2020-10-27 2020-10-27 电极组件、电池单体、电池以及用电装置
PCT/CN2021/110976 WO2022088824A1 (zh) 2020-10-27 2021-08-05 电极组件、电池单体、电池以及用电装置

Publications (1)

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CN115943513A true CN115943513A (zh) 2023-04-07

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CN202180042489.7A Pending CN115943513A (zh) 2020-10-27 2021-08-05 电极组件、电池单体、电池以及用电装置

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JP (1) JP2023517924A (zh)
KR (1) KR20220139383A (zh)
CN (2) CN213692108U (zh)
WO (1) WO2022088824A1 (zh)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN213692108U (zh) * 2020-10-27 2021-07-13 宁德时代新能源科技股份有限公司 电极组件、电池单体、电池以及用电装置
WO2023010479A1 (zh) * 2021-08-05 2023-02-09 宁德时代新能源科技股份有限公司 电极组件及加工方法和装置、电池单体、电池和用电装置
WO2023123186A1 (zh) * 2021-12-30 2023-07-06 宁德时代新能源科技股份有限公司 电极组件、二次电池、电池模块、电池包及用电装置
CN114759270A (zh) * 2022-03-01 2022-07-15 无锡先导智能装备股份有限公司 电芯成型设备、电芯成型工艺及电芯
CN114744147B (zh) * 2022-06-13 2022-10-11 宁德时代新能源科技股份有限公司 正极极片、电极组件、电池单体、电池及用电设备
CN116565128B (zh) * 2023-07-07 2023-11-03 宁德新能源科技有限公司 电化学装置和用电设备

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7297443B2 (en) * 2003-09-12 2007-11-20 Medtronic, Inc. Lithium-limited anode subassembly
US7817403B2 (en) * 2005-08-30 2010-10-19 Fuji Jukogyo Kabushiki Kaisha Lithium ion capacitor
US9257717B2 (en) * 2011-07-22 2016-02-09 Panasonic Intellectual Property Management Co., Ltd. Nonaqueous electrolyte secondary battery
JP5708934B2 (ja) * 2011-09-27 2015-04-30 三菱自動車工業株式会社 二次電池
WO2019017257A1 (ja) * 2017-07-18 2019-01-24 Jsr株式会社 蓄電デバイス
CN208127332U (zh) * 2018-03-19 2018-11-20 宁德时代新能源科技股份有限公司 电极组件和二次电池
JP7086807B2 (ja) * 2018-09-28 2022-06-20 三洋電機株式会社 非水電解質二次電池
CN213692108U (zh) * 2020-10-27 2021-07-13 宁德时代新能源科技股份有限公司 电极组件、电池单体、电池以及用电装置

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WO2022088824A1 (zh) 2022-05-05
KR20220139383A (ko) 2022-10-14
CN213692108U (zh) 2021-07-13
JP2023517924A (ja) 2023-04-27

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