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1. WO2022000515 - POSITIVE ELECTRODE MATERIAL FOR LITHIUM ION BATTERY AND PREPARATION METHOD THEREFOR

Publication Number WO/2022/000515
Publication Date 06.01.2022
International Application No. PCT/CN2020/100357
International Filing Date 06.07.2020
IPC
H01M 4/36 2006.1
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4Electrodes
02Electrodes composed of, or comprising, active material
36Selection of substances as active materials, active masses, active liquids
H01M 4/485 2010.1
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4Electrodes
02Electrodes composed of, or comprising, active material
36Selection of substances as active materials, active masses, active liquids
48of inorganic oxides or hydroxides
485of mixed oxides or hydroxides for inserting or intercalating light metals, e.g. LiTi2O4 or LiTi2OxFy
CPC
H01M 10/0525
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
05Accumulators with non-aqueous electrolyte
052Li-accumulators
0525Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
H01M 4/366
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4Electrodes
02Electrodes composed of or comprising active material
36Selection of substances as active materials, active masses, active liquids
362Composites
366as layered products
H01M 4/485
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4Electrodes
02Electrodes composed of or comprising active material
36Selection of substances as active materials, active masses, active liquids
48of inorganic oxides or hydroxides
485of mixed oxides or hydroxides for inserting or intercalating light metals, e.g. LiTi2O4 or LiTi2OxFy
H01M 4/505
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4Electrodes
02Electrodes composed of or comprising active material
36Selection of substances as active materials, active masses, active liquids
48of inorganic oxides or hydroxides
50of manganese
505of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
H01M 4/525
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4Electrodes
02Electrodes composed of or comprising active material
36Selection of substances as active materials, active masses, active liquids
48of inorganic oxides or hydroxides
52of nickel, cobalt or iron
525of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
H01M 4/5825
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4Electrodes
02Electrodes composed of or comprising active material
36Selection of substances as active materials, active masses, active liquids
58of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures, e.g. phosphates, silicates or borates
5825Oxygenated metallic slats or polyanionic structures, e.g. borates, phosphates, silicates, olivines
Applicants
  • 深圳澳睿新能源科技有限公司 SHENZHEN ORI TECHNOLOGY CO., LIMITED [CN]/[CN]
Inventors
  • 李岩 LI, Yan
  • 高晗 GAO, Han
  • 葛乐 GE, Le
  • 高宇心 GAO, Yuxin
  • 刘铱焓 LIU, Yihan
  • 叶余凯 YE, Yukai
  • 杨宁 YANG, Ning
Agents
  • 上海市海华永泰律师事务所 HIWAYS LAW FIRM
Priority Data
202010615833.429.06.2020CN
Publication Language Chinese (zh)
Filing Language Chinese (ZH)
Designated States
Title
(EN) POSITIVE ELECTRODE MATERIAL FOR LITHIUM ION BATTERY AND PREPARATION METHOD THEREFOR
(FR) MATÉRIAU D'ÉLECTRODE POSITIVE POUR BATTERIE AU LITHIUM-ION ET SON PROCÉDÉ DE PRÉPARATION
(ZH) 用于锂离子电池正极材料及其制备方法
Abstract
(EN) A positive electrode material for a lithium ion battery, comprising a ternary material and a lithium-containing fluoride. The lithium-containing fluoride is located on the surface of the ternary material, and is in the form of Li-F. A characteristic main peak is represented at 55.7 eV on an X-ray photoelectron spectroscopy. According to the provided positive electrode material, the content of impurity lithium on the surface thereof is reduced, so that the basicity of the material is controlled, and the basicity of the material is protected from being enhanced. Therefore, the preparation of the electrode slurry is facilitated, the generation of jelly-like gel is reduced, and the processability of an electrode is improved.
(FR) Matériau d'électrode positive pour une batterie au lithium-ion, comprenant un matériau ternaire et un fluorure contenant du lithium. Le fluorure contenant du lithium est situé sur la surface du matériau ternaire, et se présente sous la forme de Li-F. Un pic principal caractéristique est représenté à 55,7 eV sur une spectroscopie photoélectronique à rayons X. Selon le matériau d'électrode positive fourni, la teneur en impuretés de lithium sur la surface de celui-ci est réduite, si bien que la basicité du matériau est régulée, et la basicité du matériau est protégée contre une augmentation. Par conséquent, la préparation de la suspension d'électrode est facilitée, la production de gel de type gelée est réduite, et l'aptitude au traitement d'une électrode est améliorée.
(ZH) 一种用于锂离子电池的正极材料,包括三元材料,以及含锂氟化物,含锂氟化物位于三元材料的表面,形式为Li-F,在X射线光电子能谱上的55.7eV处表征特征主峰。提供的正极材料,其表面的杂质锂含量减少,从而使得材料的碱性得到控制,避免了材料的碱性增强。由此,有利于电极浆料的制备,减少似果冻状的凝胶产生,提高电极的加工性能。
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