Title:
COATED SULFIDE SOLID ELECTROLYTE AND PREPARATION METHOD THEREFOR AND USE THEREOF
Document Type and Number:
WIPO Patent Application WO/2023/024266
Kind Code:
A1
Abstract:
The present invention relates to the field of solid batteries, and specifically to a coated sulfide solid electrolyte and a preparation method therefor and the use thereof. Provided is a coated sulfide solid electrolyte, which is a coated sulfide solid electrolyte having an oxide solid electrolyte layer covering the surfaces of sulfide solid electrolyte particles. A specific oxide solid electrolyte is coated on the surface of a sulfide solid electrolyte to obtain the coated sulfide solid electrolyte. The oxide solid electrolyte layer thereof has a relatively high ion conductivity and a high chemical stability, and is insensitive to moisture in the air, and has a good electrochemical stability and inhibits the formation of space charges when mixed with high voltage anode materials, which successfully solves the problems of poor water stability of sulfide solid electrolytes and the mismatch of electrochemical windows when sulfide solid electrolytes are mixed with anode materials.
Inventors:
YUE MIN (CN)
CHEN JIE (CN)
YANG KAI (CN)
WANG QIAN (CN)
QIAN CHAO (CN)
CHEN JIE (CN)
YANG KAI (CN)
WANG QIAN (CN)
QIAN CHAO (CN)
Application Number:
PCT/CN2021/129082
Publication Date:
March 02, 2023
Filing Date:
November 05, 2021
Export Citation:
Assignee:
SHENZHEN YANYI NEW MAT CO LTD (CN)
International Classes:
H01M10/0562
Foreign References:
| CN103943880A | 2014-07-23 | |||
| CN101114718A | 2008-01-30 | |||
| CN108736069A | 2018-11-02 | |||
| CN109244547A | 2019-01-18 | |||
| CN107851840A | 2018-03-27 | |||
| US20160322666A1 | 2016-11-03 |
Attorney, Agent or Firm:
GEXU INTELLECTUAL PROPERTY LAW FIRM (CN)
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