ALL-SOLID-STATE LITHIUM BATTERY AND PREPARATION METHOD THEREFOR

WIPO Patent Application WO/2020/215921

A1

A preparation method for an all-solid-state lithium battery based on borohydride/sulfide double-layer fast ion conductors, comprising the following steps: at step 1, performing cold pressing on a borohydride fast ion conductor (2) and a sulfide fast ion conductor (3) to form a double-layer electrolyte; at step 2, proportionally mixing a positive electrode active material, the sulfide fast ion conductor, and a conductive agent so as to serve as the positive electrode of the all-solid-state lithium battery and performing cold pressing on one side of the sulfide fast ion conductor (3) of the double-layer electrolyte obtained at step 1, and using a lithium sheet as the negative electrode of the all-solid-state lithium battery and performing cold pressing on one side of the borohydride fast ion conductor (2) of the double-layer electrolyte obtained at step 1; and at step 3, packaging the materials obtained at step 2 to obtain the all-solid-state lithium battery based on the borohydride/sulfide double-layer fast ion conductors. The all-solid-state battery has a high working voltage and good cycle performance, is simple in preparation process and good in repeatability, and is applicable for large-scale commercial production.

ZHENG SHIYOU (CN)
PANG YUEPENG (CN)
SHI XINXIN (CN)
WANG XITONG (CN)
WANG YUFANG (CN)
NIE ZHENGFANG (CN)

PCT/CN2020/079132

October 29, 2020

March 13, 2020

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UNIV OF SHANGHAI FOR SCIENCE AND TECHNOLOGY (CN)

H01M10/0525; H01M10/058

CN110061285A	2019-07-26
CN207967198U	2018-10-12
CN109411695A	2019-03-01
JP2018116784A	2018-07-26
KR20180051717A	2018-05-17

SHANGHAI BANGDE PATENT AGENCY (CN)

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