• 专利标题:   Coated cathode active material used for slurry for cathode for secondary battery, comprises cathode active material and coating layer comprising coated cathode active material which is derived from phosphorus-containing compound.
  • 专利号:   WO2021254215-A1, TW202211525-A, CN115568289-A, KR2023025707-A, EP4169098-A1, US2023187639-A1, JP2023529661-W
  • 发明人:   HO K P, JIANG Y, DU F, HUEN P, XUAN S, HE J, DUFENGJUAN, HUENPRISCILLA
  • 专利权人:   GUANGDONG HAOZHI TECHNOLOGY CO LTD, GUANGDONG HAOZHI TECHNOLOGY CO LTD, GRST INT LTD, GRST INT LTD, GRST INT LTD
  • 国际专利分类:   H01M004/62, H01M010/0525, C07F009/30, H01M004/36, H01M004/02, H01M004/131, H01M004/136, H01M004/485, H01M004/505, H01M004/525, H01M004/58, C01B025/45, H01M004/13, H01M004/139
  • 专利详细信息:   WO2021254215-A1 23 Dec 2021 H01M-004/62 202207 Pages: 69 English
  • 申请详细信息:   WO2021254215-A1 WOCN098918 08 Jun 2021
  • 优先权号:   WOCN096672, WOCN110065, WOCN117789, WOCN098918, CN80032063, KR701934

▎ 摘  要

NOVELTY - A coated cathode active material comprises a cathode active material and a coating layer. The coating layer of the coated cathode active material is derived from a phosphorus-containing compound (I). USE - Coated cathode active material used for slurry for cathode for secondary battery (all claimed) e.g. lithium-ion battery for electric vehicles (EV) and grid energy storage. ADVANTAGE - The coated cathode active material provides slurry having improved electrochemical performance. DETAILED DESCRIPTION - A coated cathode active material comprises a cathode active material and a coating layer. The coating layer of the coated cathode active material is derived from a phosphorus-containing compound of formula (I). R1 = alkyl, alkenyl, alkynyl, enynyl, cycloalkyl, or alkylcarbonylalkyl;and R2 = alkyl, alkenyl, alkynyl, enynyl, cycloalkyl, alkoxy, alkylcarbonylalkyl, or hydroxy, in which each of the alkyl, alkenyl, alkynyl, enynyl, cycloalkyl, alkoxy, and alkylcarbonylalkyl is optionally substituted with substituent chosen from F, Cl, Br, I, cyano, hydroxyl, N3, NO2, NH2, ester, amido, aldehyde, acyl, alkyl, alkoxy, alkylthio or alkylamino. An INDEPENDENT CLAIM is included for a cathode slurry, which comprises the coated cathode active material, a binder material, and an aqueous solvent.