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1. WO2021142891 - COBALT-FREE LAYERED POSITIVE ELECTRODE MATERIAL AND METHOD FOR PREPARING SAME, AND LITHIUM-ION BATTERY

Publication Number WO/2021/142891
Publication Date 22.07.2021
International Application No. PCT/CN2020/076991
International Filing Date 27.02.2020
IPC
H01M 4/525 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
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 4/505 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
50of manganese
505of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
CPC
C01G 53/44
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
GCOMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
53Compounds of nickel
40Nickelates
42containing alkali metals, e.g. LiNiO2
44containing manganese
C01P 2004/03
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
2004Particle morphology
01depicted by an image
03obtained by SEM
C01P 2004/20
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
2004Particle morphology
20extending in two dimensions, e.g. plate-like
C01P 2004/61
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
2004Particle morphology
60Particles characterised by their size
61Micrometer sized, i.e. from 1-100 micrometer
C01P 2006/40
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
2006Physical properties of inorganic compounds
40Electric properties
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
Applicants
  • 蜂巢能源科技有限公司 SVOLT ENERGY TECHNOLOGY COMPANY LIMITED [CN]/[CN]
Inventors
  • 乔齐齐 QIAO, Qiqi
  • 江卫军 JIANG, Weijun
  • 许鑫培 XU, Xinpei
  • 施泽涛 SHI, Zetao
  • 马加力 MA, Jiali
Agents
  • 北京清亦华知识产权代理事务所(普通合伙) TSINGYIHUA INTELLECTUAL PROPERTY LLC
Priority Data
202010054733.917.01.2020CN
Publication Language Chinese (ZH)
Filing Language Chinese (ZH)
Designated States
Title
(EN) COBALT-FREE LAYERED POSITIVE ELECTRODE MATERIAL AND METHOD FOR PREPARING SAME, AND LITHIUM-ION BATTERY
(FR) MATÉRIAU D'ÉLECTRODE POSITIVE STRATIFIÉ SANS COBALT ET SON PROCÉDÉ DE PRÉPARATION, ET BATTERIE LITHIUM-ION
(ZH) 无钴层状正极材料及制备方法、锂离子电池
Abstract
(EN)
Provided are a cobalt-free layered positive electrode material and a method for preparing same, and a lithium-ion battery. The method comprises: preparing a layered lithium nickel manganese oxide base material; mixing the layered lithium nickel manganese oxide base material and a coating agent to obtain a first mixed material; performing first sintering treatment on the first mixed material to form a coating layer on the surface of the layered lithium nickel manganese oxide base material, so as to obtain the cobalt-free layered positive electrode material, wherein the coating agent comprises a first coating agent and a second coating agent, the first coating agent comprises a ceramic oxide, and the second coating agent comprises at least one of a phosphate and a silicate.
(FR)
Un matériau d'électrode positive stratifié sans cobalt et son procédé de préparation, et une batterie lithium-ion sont divulgués. Le procédé comprend : la préparation d'un matériau de base d'oxyde de lithium-nickel-manganèse stratifié ; le mélange du matériau de base d'oxyde de lithium-nickel-manganèse stratifié et d'un agent de revêtement pour obtenir un premier matériau mélangé ; la réalisation d'un premier traitement de frittage sur le premier matériau mélangé pour former une couche de revêtement sur la surface du matériau de base en oxyde de manganèse-nickel-manganèse stratifié, de manière à obtenir le matériau d'électrode positive stratifié sans cobalt, l'agent de revêtement comprenant un premier agent de revêtement et un second agent de revêtement, le premier agent de revêtement comprenant un oxyde de céramique, et le second agent de revêtement comprenant un phosphate et/ou un silicate.
(ZH)
提出了一种无钴层状正极材料及制备方法、锂离子电池。该方法包括:制备层状镍锰酸锂基体材料;将所述层状镍锰酸锂基体材料与包覆剂进行混合,获得第一混合物料;对所述第一混合物料进行第一烧结处理,在所述层状镍锰酸锂基体材料表面形成包覆层,以获得所述无钴层状正极材料,其中,所述包覆剂包括第一包覆剂和第二包覆剂,所述第一包覆剂包括陶瓷氧化物,所述第二包覆剂包括磷酸盐和硅酸盐的至少之一。
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