CN115053366A - 正极材料和包括其的电化学装置及电子装置 - Google Patents

正极材料和包括其的电化学装置及电子装置 Download PDF

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CN115053366A
CN115053366A CN202080095457.9A CN202080095457A CN115053366A CN 115053366 A CN115053366 A CN 115053366A CN 202080095457 A CN202080095457 A CN 202080095457A CN 115053366 A CN115053366 A CN 115053366A
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positive electrode
electrode material
particle size
ultrasonic treatment
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CN115053366B (zh
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刘文元
彭刚
郎野
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Xiamen Xinneng'an Technology Co ltd
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Ningde Amperex Technology Ltd
Dongguan Amperex 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
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/04—Processes of manufacture in general
    • H01M4/0471—Processes of manufacture in general involving thermal treatment, e.g. firing, sintering, backing particulate active material, thermal decomposition, pyrolysis
    • 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
    • H01M10/42—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
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/36—Selection of substances as active materials, active masses, active liquids
    • H01M4/362—Composites
    • H01M4/366—Composites as layered products
    • 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
    • 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
    • H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
    • 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
    • H01M2004/028—Positive electrodes
    • 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)
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  • Manufacturing & Machinery (AREA)
  • Composite Materials (AREA)
  • Materials Engineering (AREA)
  • Battery Electrode And Active Subsutance (AREA)

Abstract

本申请涉及正极材料及包括其的电化学装置及电子装置。该正极材料包括：由一次颗粒形成的二次颗粒，其中正极材料满足以下关系式：15％≤(Dv50a‑Dv50b)/Dv50b≤80％，其中，Dv50a表示正极材料不经过超声波处理直接用激光粒度仪测试的Dv50，Dv50b表示正极材料经过超声波处理后用激光粒度仪测试的Dv50，Dv50表示正极材料在体积基准的粒度分布中，从小粒径侧起、达到体积累积50％的粒径。满足以上条件的正极材料的二次颗粒能够形成软团聚，使其电化学装置具有良好的循环性能以及安全性能。

Description

PCT国内申请，说明书已公开。

Claims (11)

  1. PCT国内申请，权利要求书已公开。
CN202080095457.9A 2020-03-05 2020-03-05 正极材料和包括其的电化学装置及电子装置 Active CN115053366B (zh)

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CN114665072B (zh) * 2022-03-15 2024-04-26 远景动力技术(江苏)有限公司 三元材料及其应用

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103872311A (zh) * 2012-12-12 2014-06-18 三星Sdi株式会社 可再充电锂电池用正极活性物质、正极和可再充电锂电池
CN104966833A (zh) * 2015-07-28 2015-10-07 宁德时代新能源科技有限公司 正极材料、其制备方法及包含该正极材料的锂离子电池
US9577258B2 (en) * 2014-04-04 2017-02-21 Samsung Sdi Co., Ltd. Method of preparing composite cathode active material, composite cathode active material, and cathode and lithium battery containing the composite cathode active material
CN106458635A (zh) * 2014-05-27 2017-02-22 陶氏环球技术有限责任公司 改进的锂金属氧化物正极材料以及其制造方法
CN107565125A (zh) * 2017-08-25 2018-01-09 湖南杉杉能源科技股份有限公司 一种高电压镍钴锰酸锂前驱体及其制备方法和高电压镍钴锰酸锂正极材料
CN110121481A (zh) * 2016-10-31 2019-08-13 住友金属矿山株式会社 镍锰复合氢氧化物和其制造方法、非水系电解质二次电池用正极活性物质和其制造方法以及非水系电解质二次电池
CN110350162A (zh) * 2019-06-19 2019-10-18 乳源东阳光磁性材料有限公司 一种倍率型镍钴铝正极材料及其制备方法和应用
CN110416511A (zh) * 2019-07-19 2019-11-05 宁德新能源科技有限公司 正极材料及包括其的正极和电化学装置

Family Cites Families (1)

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Publication number Priority date Publication date Assignee Title
TW201824621A (zh) * 2016-09-09 2018-07-01 日商昭和電工股份有限公司 鋰離子二次電池用負極材料

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103872311A (zh) * 2012-12-12 2014-06-18 三星Sdi株式会社 可再充电锂电池用正极活性物质、正极和可再充电锂电池
US9577258B2 (en) * 2014-04-04 2017-02-21 Samsung Sdi Co., Ltd. Method of preparing composite cathode active material, composite cathode active material, and cathode and lithium battery containing the composite cathode active material
CN106458635A (zh) * 2014-05-27 2017-02-22 陶氏环球技术有限责任公司 改进的锂金属氧化物正极材料以及其制造方法
CN104966833A (zh) * 2015-07-28 2015-10-07 宁德时代新能源科技有限公司 正极材料、其制备方法及包含该正极材料的锂离子电池
CN110121481A (zh) * 2016-10-31 2019-08-13 住友金属矿山株式会社 镍锰复合氢氧化物和其制造方法、非水系电解质二次电池用正极活性物质和其制造方法以及非水系电解质二次电池
CN107565125A (zh) * 2017-08-25 2018-01-09 湖南杉杉能源科技股份有限公司 一种高电压镍钴锰酸锂前驱体及其制备方法和高电压镍钴锰酸锂正极材料
CN110350162A (zh) * 2019-06-19 2019-10-18 乳源东阳光磁性材料有限公司 一种倍率型镍钴铝正极材料及其制备方法和应用
CN110416511A (zh) * 2019-07-19 2019-11-05 宁德新能源科技有限公司 正极材料及包括其的正极和电化学装置

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WO2021174480A1 (zh) 2021-09-10
US11984579B2 (en) 2024-05-14
CN115053366B (zh) 2023-09-01

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Effective date of registration: 20231219

Address after: 411-1, No. 942, Tonglong Second Road, Torch High tech Zone (Xiang'an) Industrial Zone, Xiamen, Fujian 361,000

Patentee after: Xiamen Xinneng'an Technology Co.,Ltd.

Address before: 352100 Xingang Road, Zhangwan Town, Jiaocheng District, Ningde, Fujian 1

Patentee before: NINGDE AMPEREX TECHNOLOGY Ltd.

Patentee before: DONGGUAN AMPEREX TECHNOLOGY Ltd.