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Title:
POSITIVE ELECTRODE COMPOSITE MATERIAL FOR ALL-SOLID-STATE LITHIUM ION BATTERY AND PREPARATION METHOD AND APPLICATION THEREFOR
Document Type and Number:
WIPO Patent Application WO/2017/128983
Kind Code:
A1
Abstract:
Provided in the present invention are a positive electrode composite material for an all-solid-state lithium ion battery, and a preparation method and an application therefor, the positive electrode positive material having a core-shell structure, the core comprising positive electrode active material, and the shell comprising a polymer electrolyte and a sulphide solid-state electrolyte. The positive electrode composite material for an all-solid-state lithium ion battery provided in the present invention has a simple preparation procedure, and can effectively improve the interface problem between the positive electrode and inorganic solid electrolyte of a lithium ion battery; an all-solid-state lithium ion battery prepared using said material has good recycling service life and better safety performance.

Inventors:
XIE, Jing (No.3009, BYD Road Pingsha, Shenzhen Guangdong 8, 518118, CN)
MA, Yongjun (No.3009, BYD Road Pingsha, Shenzhen Guangdong 8, 518118, CN)
YI, Guangui (No.3009, BYD Road Pingsha, Shenzhen Guangdong 8, 518118, CN)
SONG, Wei (No.3009, BYD Road Pingsha, Shenzhen Guangdong 8, 518118, CN)
GUO, Zizhu (No.3009, BYD Road Pingsha, Shenzhen Guangdong 8, 518118, CN)
Application Number:
CN2017/071314
Publication Date:
August 03, 2017
Filing Date:
January 16, 2017
Export Citation:
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Assignee:
BYD COMPANY LIMITED (No.3009, BYD Road Pingsha, Shenzhen Guangdong 8, 518118, CN)
International Classes:
H01M4/36
Foreign References:
CN103682354A2014-03-26
CN103515649A2014-01-15
Attorney, Agent or Firm:
TSINGYIHUA INTELLECTUAL PROPERTY LLC (Room 301 Trade Building, Zhaolanyuan Tsinghua University, Qinghuayuan, Haidian District, Beijing 4, 100084, CN)
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