CN115066782A - 电极组件、电池单体、电池及制造电极组件的方法和装置 - Google Patents

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

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CN115066782A
CN115066782A CN202080096370.3A CN202080096370A CN115066782A CN 115066782 A CN115066782 A CN 115066782A CN 202080096370 A CN202080096370 A CN 202080096370A CN 115066782 A CN115066782 A CN 115066782A
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China
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barrier layer
pole piece
positive
electrode assembly
negative
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CN202080096370.3A
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喻鸿钢
史松君
金海族
宋书涛
陈冰
杜鑫鑫
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Contemporary Amperex Technology Co Ltd
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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
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
    • H01M4/628—Inhibitors, e.g. gassing inhibitors, corrosion inhibitors
    • 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
    • H01M4/36—Selection of substances as active materials, active masses, active liquids
    • H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
    • H01M4/50—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese
    • H01M4/505—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
    • 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
    • H01M10/0583—Construction or manufacture of accumulators with folded construction elements except wound ones, i.e. folded positive or negative electrodes or separators, e.g. with "Z"-shaped electrodes or 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
    • H01M10/05—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
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/36—Selection of substances as active materials, active masses, active liquids
    • H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
    • H01M4/52—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron
    • H01M4/525—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
    • 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
    • H01M50/10—Primary casings, jackets or wrappings of a single cell or a single battery
    • H01M50/102—Primary casings, jackets or wrappings of a single cell or a single battery characterised by their shape or physical structure
    • H01M50/103—Primary casings, jackets or wrappings of a single cell or a single battery characterised by their shape or physical structure prismatic or rectangular
    • 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
    • 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
    • H01M50/489—Separators, membranes, diaphragms or spacing elements inside the cells, characterised by their physical properties, e.g. swelling degree, hydrophilicity or shut down properties
    • H01M50/491—Porosity
    • 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
    • H01M2004/021—Physical characteristics, e.g. porosity, surface area
    • 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

本申请的实施例公开一种电极组件、电池单体、电池及制造电极组件的方法和装置，该电极组件包括：正极极片和负极极片，正极极片和负极极片经过卷绕或者层叠后形成弯折区；弯折区具有阻挡层，其中，至少一部分阻挡层位于相邻正极极片和负极极片之间，用于阻挡从正极极片脱出的至少一部分离子嵌入弯折区的负极极片。根据上述描述的技术方案，在弯折区相邻的正极极片和负极极片之间设置阻挡层，可以阻挡正极活性物质层脱出的离子至少一部分嵌入与正极极片相邻的负极极片在弯折区的负极活性物质层，降低析锂的发生，提高电池单体的安全性能，提高电池单体使用寿命。

Description

PCT国内申请，说明书已公开。

Claims (28)

  1. PCT国内申请，权利要求书已公开。
CN202080096370.3A 2020-08-21 2020-08-21 电极组件、电池单体、电池及制造电极组件的方法和装置 Pending CN115066782A (zh)

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PCT/CN2020/110628 WO2022036721A1 (zh) 2020-08-21 2020-08-21 电极组件、电池单体、电池及制造电极组件的方法和装置

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US (2) US11843119B2 (zh)
EP (1) EP4075563A4 (zh)
JP (1) JP2023516411A (zh)
KR (1) KR102635995B1 (zh)
CN (1) CN115066782A (zh)
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CA (1) CA3171539A1 (zh)
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Cited By (3)

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CN116315143A (zh) * 2023-05-19 2023-06-23 宁德时代新能源科技股份有限公司 电极组件及其制备方法、电池单体、电池、用电装置
WO2023138440A1 (zh) * 2022-01-21 2023-07-27 宁德时代新能源科技股份有限公司 电极组件、卷绕设备和方法、电池单体、电池及用电装置
CN116581396A (zh) * 2023-07-10 2023-08-11 宁德新能源科技有限公司 电芯及用电设备

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CN115799656B (zh) * 2021-09-10 2023-12-15 宁德时代新能源科技股份有限公司 电极组件及与其相关的电池单体、电池、装置和制造方法
CN116964803A (zh) * 2021-12-30 2023-10-27 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
DE102022204285A1 (de) 2022-05-02 2023-11-02 Volkswagen Aktiengesellschaft Batteriezelle
CN115810859A (zh) * 2022-09-05 2023-03-17 宁德时代新能源科技股份有限公司 电极组件、电池单体、电池及电极组件的制造方法和装置
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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JP3428448B2 (ja) 1998-08-21 2003-07-22 三菱電機株式会社 電極構造体およびそれを用いた電池
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023138440A1 (zh) * 2022-01-21 2023-07-27 宁德时代新能源科技股份有限公司 电极组件、卷绕设备和方法、电池单体、电池及用电装置
CN116315143A (zh) * 2023-05-19 2023-06-23 宁德时代新能源科技股份有限公司 电极组件及其制备方法、电池单体、电池、用电装置
CN116315143B (zh) * 2023-05-19 2023-10-20 宁德时代新能源科技股份有限公司 电极组件及其制备方法、电池单体、电池、用电装置
CN116581396A (zh) * 2023-07-10 2023-08-11 宁德新能源科技有限公司 电芯及用电设备
CN116581396B (zh) * 2023-07-10 2024-04-05 宁德新能源科技有限公司 电芯及用电设备

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JP2023516411A (ja) 2023-04-19
EP4075563A1 (en) 2022-10-19
CA3171539A1 (en) 2022-02-24
KR102635995B1 (ko) 2024-02-14
EP4075563A4 (en) 2023-08-09
US11843119B2 (en) 2023-12-12
US20230083594A1 (en) 2023-03-16
KR20220134004A (ko) 2022-10-05
WO2022036721A1 (zh) 2022-02-24
BR112022017318A2 (pt) 2023-03-07
US20240014401A1 (en) 2024-01-11

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