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CN115699355A - 二次电池及其制备方法、含有该二次电池的电池模块、电池包和装置 - Google Patents

二次电池及其制备方法、含有该二次电池的电池模块、电池包和装置 Download PDF

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CN115699355A
CN115699355A CN202080102139.0A CN202080102139A CN115699355A CN 115699355 A CN115699355 A CN 115699355A CN 202080102139 A CN202080102139 A CN 202080102139A CN 115699355 A CN115699355 A CN 115699355A
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negative electrode
secondary battery
active material
area
battery according
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CN115699355B (zh
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吴益扬
武宝珍
叶永煌
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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
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/058—Construction or manufacture
    • H01M10/0585—Construction or manufacture of accumulators having only flat construction elements, i.e. flat positive electrodes, flat negative electrodes and flat 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
    • H01M4/133—Electrodes based on carbonaceous material, e.g. graphite-intercalation compounds or CFx
    • 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
    • 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
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/36—Selection of substances as active materials, active masses, active liquids
    • H01M4/58—Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures, e.g. phosphates, silicates or borates
    • H01M4/583—Carbonaceous material, e.g. graphite-intercalation compounds or CFx
    • 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
    • H01M4/58—Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures, e.g. phosphates, silicates or borates
    • H01M4/583—Carbonaceous material, e.g. graphite-intercalation compounds or CFx
    • H01M4/587—Carbonaceous material, e.g. graphite-intercalation compounds or CFx for inserting or intercalating light metals
    • 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
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M2004/026—Electrodes composed of, or comprising, active material characterised by the polarity
    • H01M2004/027—Negative electrodes
    • 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

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

Abstract

本申请提供一种二次电池及其制备方法、含有该二次电池的电池模块、电池包和装置。二次电池包括电极组件，电极组件包括主体部和由主体部延伸出的极耳，主体部包括负极极片，负极极片包括负极集流体以及设置于负极集流体至少一个表面上的负极膜层，其中，负极膜层在极耳伸出方向上包括第一区域和设置在第一区域两侧的第二区域，第一区域包括第一负极活性材料，第一负极活性材料包括人造石墨，第二区域包括第二负极活性材料，第二负极活性材料包括石墨；负极极片与第一区域对应的部分的直流阻抗记为R1，负极极片与第二区域对应的部分的直流阻抗记为R2，则二次电池满足：R1＜R2。

Description

PCT国内申请，说明书已公开。

Claims (22)

  1. PCT国内申请，权利要求书已公开。
CN202080102139.0A 2020-12-30 2020-12-30 二次电池及其制备方法、含有该二次电池的电池模块、电池包和装置 Active CN115699355B (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
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WO2025086600A1 (zh) * 2023-10-27 2025-05-01 宁德时代新能源科技股份有限公司 负极极片、电池单体和用电装置

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118679595A (zh) * 2022-08-23 2024-09-20 宁德时代新能源科技股份有限公司 二次电池及用电装置
CN116404101B (zh) * 2023-06-08 2023-08-18 深圳海辰储能控制技术有限公司 一种负极极片、电池、电池包及用电设备
CN116666733B (zh) * 2023-07-28 2024-02-06 宁德时代新能源科技股份有限公司 电池单体、电池和用电装置
CN120089801A (zh) * 2025-01-07 2025-06-03 宁德时代新能源科技股份有限公司 电池单体、电池装置和用电装置

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JP2011070976A (ja) * 2009-09-28 2011-04-07 Toyota Motor Corp リチウムイオン二次電池、車両及び電池搭載機器
CN109841831A (zh) * 2019-03-21 2019-06-04 宁德新能源科技有限公司 负极材料及包含该负极材料的负极及电化学装置
CN111916668A (zh) * 2020-07-27 2020-11-10 珠海冠宇电池股份有限公司 一种负极片及其制备方法和包含该负极片的锂离子电池
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JP2015210979A (ja) * 2014-04-28 2015-11-24 トヨタ自動車株式会社 リチウムイオン二次電池
JP2018106981A (ja) * 2016-12-27 2018-07-05 株式会社Ｓｏｋｅｎ 二次電池
CN108258193A (zh) * 2017-12-28 2018-07-06 湖南三迅新能源科技有限公司 一种负极片及其制备方法、锂离子电池
CN108807848B (zh) * 2018-05-11 2019-10-08 宁德时代新能源科技股份有限公司 负极极片及含有它的二次电池
CN109980177B (zh) * 2019-03-29 2021-10-22 东莞新能安科技有限公司 电极极片和包含所述电极极片的电化学装置

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JP2011070976A (ja) * 2009-09-28 2011-04-07 Toyota Motor Corp リチウムイオン二次電池、車両及び電池搭載機器
CN109841831A (zh) * 2019-03-21 2019-06-04 宁德新能源科技有限公司 负极材料及包含该负极材料的负极及电化学装置
CN111916668A (zh) * 2020-07-27 2020-11-10 珠海冠宇电池股份有限公司 一种负极片及其制备方法和包含该负极片的锂离子电池
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Publication number Priority date Publication date Assignee Title
WO2025086600A1 (zh) * 2023-10-27 2025-05-01 宁德时代新能源科技股份有限公司 负极极片、电池单体和用电装置

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