CN115176372A - 电极组件、电池单体、电池及制造电极组件的方法和设备 - Google Patents

电极组件、电池单体、电池及制造电极组件的方法和设备 Download PDF

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Publication number
CN115176372A
CN115176372A CN202180017077.8A CN202180017077A CN115176372A CN 115176372 A CN115176372 A CN 115176372A CN 202180017077 A CN202180017077 A CN 202180017077A CN 115176372 A CN115176372 A CN 115176372A
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China
Prior art keywords
pole piece
winding
segment
subsection
active material
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Pending
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CN202180017077.8A
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English (en)
Inventor
金海族
许虎
杜鑫鑫
李星
梁成都
曾毓群
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Contemporary Amperex Technology Co Ltd
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Contemporary Amperex Technology Co Ltd
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Publication of CN115176372A publication Critical patent/CN115176372A/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
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
    • H01M50/209—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
    • 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
    • H01M10/04—Construction or manufacture in general
    • H01M10/0431—Cells with wound or folded electrodes
    • 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
    • H01M10/05—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
    • 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)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Battery Electrode And Active Subsutance (AREA)
  • Secondary Cells (AREA)

Abstract

本申请实施例提供了一种电极组件(22)、电池单体(20)、电池(100)及制造电极组件(22)的方法和设备(2000)，属于电池技术领域，包括第一极片(221)和第二极片(222)，第一极片(221)和第二极片(222)沿卷绕方向(A)卷绕并形成卷绕结构，卷绕结构包括弯折区(223)。第一极片(221)包括超出第二极片(222)的卷绕起始端(225b)的第一段(2211)，第一段(2211)的至少一部分用于给第一极片(221)和第二极片(222)在弯折区(223)并位于第一段(2211)的外侧的部分提供支撑力，使得第一极片(221)和第二极片(222)在弯折区(223)结构更加紧凑，第一极片(221)在弯折区(223)的部分与第二极片(222)在弯折区(223)的部分之间的间隙不易因受到外力作用而增大，降低析锂现象的发生。

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。
CN202180017077.8A 2021-01-07 2021-01-07 电极组件、电池单体、电池及制造电极组件的方法和设备 Pending CN115176372A (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2021/070716 WO2022147732A1 (zh) 2021-01-07 2021-01-07 电极组件、电池单体、电池及制造电极组件的方法和设备

Publications (1)

Publication Number Publication Date
CN115176372A true CN115176372A (zh) 2022-10-11

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CN202180017077.8A Pending CN115176372A (zh) 2021-01-07 2021-01-07 电极组件、电池单体、电池及制造电极组件的方法和设备

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US (1) US20220246993A1 (zh)
EP (1) EP4053960B1 (zh)
JP (1) JP2023541131A (zh)
KR (1) KR20230042102A (zh)
CN (1) CN115176372A (zh)
WO (1) WO2022147732A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116565341A (zh) * 2023-07-10 2023-08-08 宁德新能源科技有限公司 电极组件、电芯和用电设备

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US20140329117A1 (en) * 2011-11-24 2014-11-06 Hitachi, Ltd. Non-aqueous electrolyte wound type secondary battery
CN205828556U (zh) * 2016-07-08 2016-12-21 宁德新能源科技有限公司 二次电池卷绕式电芯
CN205882099U (zh) * 2016-08-01 2017-01-11 宁德新能源科技有限公司 卷绕式电芯
CN206401456U (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
CN107302110A (zh) * 2016-04-15 2017-10-27 宁德新能源科技有限公司 卷绕式电芯
CN207572477U (zh) * 2017-12-12 2018-07-03 宁德时代新能源科技股份有限公司 电极组件和二次电池
CN208226027U (zh) * 2018-04-12 2018-12-11 宁德新能源科技有限公司 电芯
CN109524606A (zh) * 2018-11-05 2019-03-26 宁德新能源科技有限公司 极片、电芯及电池
WO2019235476A1 (ja) * 2018-06-07 2019-12-12 株式会社Ｇｓユアサ 蓄電素子
CN110808377A (zh) * 2018-08-06 2020-02-18 宁德新能源科技有限公司 电芯、电池以及电子设备
CN210092264U (zh) * 2019-03-28 2020-02-18 宁德新能源科技有限公司 电芯及电池

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4968182B2 (ja) * 2008-05-29 2012-07-04 ソニー株式会社 巻回電極体及び非水電解質二次電池
CN205828576U (zh) * 2016-07-06 2016-12-21 宁德新能源科技有限公司 卷绕式电芯
CN111916844B (zh) * 2020-08-13 2022-04-15 东莞新能安科技有限公司 电化学装置及电子装置

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140329117A1 (en) * 2011-11-24 2014-11-06 Hitachi, Ltd. Non-aqueous electrolyte wound type secondary battery
CN107302110A (zh) * 2016-04-15 2017-10-27 宁德新能源科技有限公司 卷绕式电芯
CN205828556U (zh) * 2016-07-08 2016-12-21 宁德新能源科技有限公司 二次电池卷绕式电芯
CN205882099U (zh) * 2016-08-01 2017-01-11 宁德新能源科技有限公司 卷绕式电芯
CN206401456U (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
CN207572477U (zh) * 2017-12-12 2018-07-03 宁德时代新能源科技股份有限公司 电极组件和二次电池
CN208226027U (zh) * 2018-04-12 2018-12-11 宁德新能源科技有限公司 电芯
WO2019235476A1 (ja) * 2018-06-07 2019-12-12 株式会社Ｇｓユアサ 蓄電素子
CN110808377A (zh) * 2018-08-06 2020-02-18 宁德新能源科技有限公司 电芯、电池以及电子设备
CN109524606A (zh) * 2018-11-05 2019-03-26 宁德新能源科技有限公司 极片、电芯及电池
CN210092264U (zh) * 2019-03-28 2020-02-18 宁德新能源科技有限公司 电芯及电池

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116565341A (zh) * 2023-07-10 2023-08-08 宁德新能源科技有限公司 电极组件、电芯和用电设备
CN116565341B (zh) * 2023-07-10 2023-10-03 宁德新能源科技有限公司 电极组件、电芯和用电设备

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EP4053960A4 (en) 2022-09-07
US20220246993A1 (en) 2022-08-04
JP2023541131A (ja) 2023-09-28
WO2022147732A1 (zh) 2022-07-14
KR20230042102A (ko) 2023-03-27
EP4053960A1 (en) 2022-09-07
EP4053960B1 (en) 2023-07-26

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