CN113614978A - 电化学装置及采用该电化学装置的电子装置 - Google Patents

电化学装置及采用该电化学装置的电子装置 Download PDF

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CN113614978A
CN113614978A CN202080008295.0A CN202080008295A CN113614978A CN 113614978 A CN113614978 A CN 113614978A CN 202080008295 A CN202080008295 A CN 202080008295A CN 113614978 A CN113614978 A CN 113614978A
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electrochemical device
adhesive member
section
current collector
electrode assembly
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CN113614978B (zh
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韩翔龙
李学成
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Dongguan Poweramp Technology Ltd
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Dongguan Poweramp Technology 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
    • 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
    • H01M10/04—Construction or manufacture in general
    • 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
    • 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
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
    • H01M50/409—Separators, membranes or diaphragms characterised by the material
    • H01M50/411—Organic material
    • H01M50/414—Synthetic resins, e.g. thermoplastics or thermosetting resins
    • H01M50/417—Polyolefins
    • 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
    • H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
    • H01M50/46—Separators, membranes or diaphragms characterised by their combination with electrodes
    • H01M50/461—Separators, membranes or diaphragms characterised by their combination with electrodes with adhesive layers between electrodes and separators
    • 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
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/531—Electrode connections inside a battery casing
    • H01M50/538—Connection of several leads or tabs of wound or folded electrode stacks
    • 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
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/4235—Safety or regulating additives or arrangements in electrodes, separators or electrolyte
    • 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
    • H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
    • H01M50/242—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries against vibrations, collision impact or swelling
    • 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)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Secondary Cells (AREA)
  • Materials Engineering (AREA)

Abstract

一种电化学装置(100)和包含电化学装置(100)的电子装置，电化学装置(100)包括电极组件(10)、第一粘接件(20)和第二粘接件(30)。电极组件(10)包括极片(11)和隔膜(12)，极片(11)和隔膜(12)依次层叠卷绕形成电极组件(10)，极片(11)包括集流体(111)，电极组件(10)包括相互连接的第一平直段(13)和第一弯折段(14)。其中，沿卷绕方向，隔膜(12)的收尾端超出集流体(111)的收尾端1至5圈，第一粘接件(20)设于第一水平段(13)的外表面，第二粘接件(30)设于第一弯折段(14)的外表面或第一弯折段中最外圈集流体(141)的外表面。粘接件的设置可以改善隔膜(12)的收尾端在机械滥用情况容易破损的问题，增强隔膜(12)在垂直卷绕方向的强度，提高电化学装置(100)的安全可靠性和使用寿命。

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。
CN202080008295.0A 2020-03-31 2020-03-31 电化学装置及采用该电化学装置的电子装置 Active CN113614978B (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114520374A (zh) * 2022-01-27 2022-05-20 宁德新能源科技有限公司 电池及其电子装置

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CN115332728B (zh) * 2022-10-13 2023-02-28 宁德新能源科技有限公司 电池、电化学装置及用电设备

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JP2001357870A (ja) * 2000-06-12 2001-12-26 Gs-Melcotec Co Ltd 電 池
CN1510779A (zh) * 2002-12-23 2004-07-07 比亚迪股份有限公司 非水电解液锂二次电池
JP2011114232A (ja) * 2009-11-27 2011-06-09 Tdk Corp 巻回型電気化学デバイス及びその製造方法
CN102222802A (zh) * 2010-04-15 2011-10-19 深圳市比克电池有限公司 一种锂离子电池的制造方法及其卷芯与锂离子电池
CN110233299A (zh) * 2018-03-06 2019-09-13 宁德新能源科技有限公司 卷绕式电芯
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JP2007200827A (ja) * 2006-01-30 2007-08-09 Sanyo Electric Co Ltd 非水電解質二次電池
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
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CN106058296B (zh) * 2016-08-05 2019-02-05 东莞新能源科技有限公司 一种二次电池电芯
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WO2020031791A1 (ja) * 2018-08-07 2020-02-13 日本ゼオン株式会社 非水系二次電池機能層用組成物およびその製造方法、非水系二次電池用機能層、非水系二次電池部材、並びに非水系二次電池
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Publication number Priority date Publication date Assignee Title
JP2001357870A (ja) * 2000-06-12 2001-12-26 Gs-Melcotec Co Ltd 電 池
CN1510779A (zh) * 2002-12-23 2004-07-07 比亚迪股份有限公司 非水电解液锂二次电池
JP2011114232A (ja) * 2009-11-27 2011-06-09 Tdk Corp 巻回型電気化学デバイス及びその製造方法
CN102222802A (zh) * 2010-04-15 2011-10-19 深圳市比克电池有限公司 一种锂离子电池的制造方法及其卷芯与锂离子电池
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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

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Publication number Priority date Publication date Assignee Title
CN114520374A (zh) * 2022-01-27 2022-05-20 宁德新能源科技有限公司 电池及其电子装置

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EP4131557A4 (en) 2023-09-13
US20230025766A1 (en) 2023-01-26
WO2021195906A1 (zh) 2021-10-07
EP4131557A1 (en) 2023-02-08
CN113614978B (zh) 2024-05-10

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