SOLID ELECTROLYTE AND PREPARATION METHOD THEREFOR, AND SECONDARY BATTERY

WIPO Patent Application WO/2022/179559

A1

Embodiments of the present application provide a solid electrolyte, comprising a porous coordination polymer having an unsaturated metal site, an anionic group coordinated and grafted to the unsaturated metal site, and a cation bound to the anionic group. The anionic group comprises one or more substituted carboxylate anionic groups and/or one or more substituted sulfonate anionic groups; and the cation comprises one or more of lithium ion, sodium ion, potassium ion, magnesium ion, zinc ion, and aluminum ion. The solid electrolyte exhibits single cation conduction characteristics, such that concentration polarization in a battery system can be effectively avoided, and the growth of a metal negative electrode dendrite can be inhibited, thereby improving the electrochemical performance and safety performance of a battery. The embodiments of the present application further provide a preparation method for the solid electrolyte and a secondary battery comprising the solid electrolyte.

WO/2023/117488	ELECTROLYTE COMPOSITIONS FOR ENERGY STORAGE CELLS WITH FAST CHARGE AND DISCHARGE CAPABILITES
WO/2017/030332	LITHIUM AIR BATTERY AND MANUFACTURING METHOD THEREFOR
WO/2021/075420	ALL-SOLID-STATE LITHIUM SECONDARY BATTERY AND PRODUCTION METHOD FOR ALL-SOLID-STATE LITHIUM SECONDARY BATTERY

MA QIANG (CN)
WU HAOBIN (CN)
XU YIFEI (CN)
HONG XIANG (CN)

PCT/CN2022/077655

September 01, 2022

February 24, 2022

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HUAWEI TECH CO LTD (CN)

H01M10/056; H01M10/0525

US9300010B2	2016-03-29
CN110915055A	2020-03-24
CN112397772A	2021-02-23
CN105070946A	2015-11-18
US20160254567A1	2016-09-01
CN202110222938A	2021-02-27

SCIHEAD IP LAW FIRM (CN)

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