CN115777157A - 卷绕式电极组件、电池单体、电池及用电设备 - Google Patents

卷绕式电极组件、电池单体、电池及用电设备 Download PDF

Info

Publication number
CN115777157A
CN115777157A CN202180049678.7A CN202180049678A CN115777157A CN 115777157 A CN115777157 A CN 115777157A CN 202180049678 A CN202180049678 A CN 202180049678A CN 115777157 A CN115777157 A CN 115777157A
Authority
CN
China
Prior art keywords
active material
material layer
positive electrode
winding
negative electrode
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202180049678.7A
Other languages
English (en)
Inventor
上官会会
唐代春
杜鑫鑫
白子瑜
秦瑞环
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Contemporary Amperex Technology Co Ltd
Original Assignee
Contemporary Amperex Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Contemporary Amperex Technology Co Ltd filed Critical Contemporary Amperex Technology Co Ltd
Publication of CN115777157A publication Critical patent/CN115777157A/zh
Pending legal-status Critical Current

Links

Images

Classifications

    • 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
    • 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
    • H01M50/249—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
    • 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
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Battery Electrode And Active Subsutance (AREA)
  • Secondary Cells (AREA)
  • Primary Cells (AREA)

Abstract

本申请实施例提供一种卷绕式电极组件、电池单体、电池、用电设备、电极组件的制造方法及其制造设备，涉及电池技术领域。电极组件包括正极片和负极片；正极片包括第一正极卷绕端部和正极卷绕中间段；负极片包括第一部分和第二部分；负极片的活性物质层超出正极片的活性物质层，第一部分的负极活性物质层的最大宽度与第一正极卷绕端部的正极活性物质层的最小宽度之差大于第二部分的负极活性物质层的最大宽度与正极卷绕中间段的正极活性物质层的最小宽度之差。该电极组件能够降低沿卷绕轴线方向负极片的负极活性物质层超出正极片的正极活性物质层的部分的尺寸不满足设计需求而造成析锂的风险。

Description

PCT国内申请，说明书已公开。

Claims (19)

  1. PCT国内申请，权利要求书已公开。
CN202180049678.7A 2021-03-08 2021-03-08 卷绕式电极组件、电池单体、电池及用电设备 Pending CN115777157A (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2021/079604 WO2022188009A1 (zh) 2021-03-08 2021-03-08 卷绕式电极组件、电池单体、电池及用电设备

Publications (1)

Publication Number Publication Date
CN115777157A true CN115777157A (zh) 2023-03-10

Family

ID=83116423

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202180049678.7A Pending CN115777157A (zh) 2021-03-08 2021-03-08 卷绕式电极组件、电池单体、电池及用电设备

Country Status (11)

Country Link
US (2) US11862768B2 (zh)
EP (2) EP4086996B1 (zh)
JP (1) JP7522319B2 (zh)
KR (1) KR20230084559A (zh)
CN (1) CN115777157A (zh)
ES (1) ES2946677T3 (zh)
FI (1) FI4086996T3 (zh)
HU (1) HUE061982T2 (zh)
PL (1) PL4086996T3 (zh)
PT (1) PT4086996T (zh)
WO (1) WO2022188009A1 (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115566373B (zh) * 2022-12-07 2023-03-03 楚能新能源股份有限公司 一种错位型的全极耳极片、卷绕电芯和圆柱电池

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006079942A (ja) * 2004-09-09 2006-03-23 Sanyo Electric Co Ltd 電池
JP5429389B2 (ja) * 2010-09-01 2014-02-26 トヨタ自動車株式会社 二次電池、及び、二次電池の製造方法
KR101314972B1 (ko) * 2011-06-17 2013-10-04 삼성에스디아이 주식회사 이차 전지
CN102263256B (zh) 2011-06-24 2014-06-18 深圳市豪鹏科技有限公司 负极片及电池
JP5999442B2 (ja) * 2013-04-16 2016-09-28 トヨタ自動車株式会社 非水電解質二次電池
CN107431153B (zh) * 2015-03-31 2021-05-07 株式会社杰士汤浅国际 蓄电元件
KR102580234B1 (ko) * 2016-02-22 2023-09-19 삼성에스디아이 주식회사 이차 전지
CN111326699B (zh) 2019-08-14 2021-11-09 宁德时代新能源科技股份有限公司 二次电池
CN212161994U (zh) 2020-06-02 2020-12-15 宁德时代新能源科技股份有限公司 电极组件及其制造装置、电池、电池模块、电池组、使用电池的装置

Also Published As

Publication number Publication date
HUE061982T2 (hu) 2023-09-28
EP4086996B1 (en) 2023-05-10
US20240088449A1 (en) 2024-03-14
WO2022188009A1 (zh) 2022-09-15
JP2023549508A (ja) 2023-11-27
US20220285737A1 (en) 2022-09-08
KR20230084559A (ko) 2023-06-13
US11862768B2 (en) 2024-01-02
EP4086996A1 (en) 2022-11-09
JP7522319B2 (ja) 2024-07-24
EP4184635A1 (en) 2023-05-24
ES2946677T3 (es) 2023-07-24
PT4086996T (pt) 2023-06-07
FI4086996T3 (fi) 2023-05-29
PL4086996T3 (pl) 2023-07-17

Similar Documents

Publication Publication Date Title
EP4113731A1 (en) Battery cell, battery, and electrical device
US20230170592A1 (en) Electrode assembly, battery cell, battery, and electric apparatus
CN115425372B (zh) 电极极片、电极组件、电池单体、电池和用电设备
EP4109664A1 (en) Battery cell, battery, and electric device
US20230087166A1 (en) Electrode assembly, battery cell, battery and electrical device
EP4407758A1 (en) Battery cell, battery, electrical device, and method and device for manufacturing battery cell
CN115413379A (zh) 电极组件、电池单体、电池及电极组件的制造方法和设备
US20230238540A1 (en) Electrode assembly, battery cell, battery, and method and device for manufacturing electrode assembly
US20230216154A1 (en) Current collecting member, battery cell, battery, and power consuming device
US20240088449A1 (en) Winding type electrode assembly, battery cell, battery and power consumption device
US20230411700A1 (en) Electrode assembly, manufacturing method therefor, battery cell, battery, and electric apparatus
US20230361354A1 (en) Electrode assembly and manufacturing method therefor, battery cell, battery, and power consuming device
US20220246993A1 (en) Electrode assembly, battery cell, battery, and method and device for manufacturing electrode assembly
US20220328884A1 (en) Electrode assembly, battery cell, battery, and manufacturing method and device for electrode assembly
EP4254587A1 (en) Electrode sheet, electrode assembly, battery cell, battery, electric apparatus, and manufacturing methods
EP4199203A1 (en) Pressure relief apparatus, battery cell, battery and electrical device
EP4068490A1 (en) Battery cell, battery, electric device, and manufacturing method and device for battery cell
US20240258585A1 (en) Battery cell, battery and power consumption apparatus
CN221466759U (zh) 电极组件、电池单体、电池及用电设备
CN221041220U (zh) 电池单体、电池及用电设备
US20240258586A1 (en) Battery cell, battery and power consumption apparatus
EP4283746A1 (en) Battery cell, battery, power consuming device, and method for manufacturing battery cell
EP4398400A1 (en) Housing, battery cell, battery, and electrical device

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination