Search International and National Patent Collections

1. (WO2018218390) IONIC LIQUID-BASED QUASI-SOLID ELECTROLYTE FOR LITHIUM BATTERY AND PREPARATION METHOD THEREFOR

Pub. No.:    WO/2018/218390    International Application No.:    PCT/CN2017/000400
Publication Date: Fri Dec 07 00:59:59 CET 2018 International Filing Date: Sat Jun 24 01:59:59 CEST 2017
IPC: H01M 10/0565
Applicants: BEIJING INSTITUTE OF TECHNOLOGY
北京理工大学
CHEN, Renjie
陈人杰
CHEN, Nan
陈楠
WU, Feng
吴锋
WANG, Lili
王丽莉
DAI, Yujuan
戴玉娟
Inventors: CHEN, Renjie
陈人杰
CHEN, Nan
陈楠
WU, Feng
吴锋
WANG, Lili
王丽莉
DAI, Yujuan
戴玉娟
Title: IONIC LIQUID-BASED QUASI-SOLID ELECTROLYTE FOR LITHIUM BATTERY AND PREPARATION METHOD THEREFOR
Abstract:
Provided are an ionic liquid-based quasi-solid electrolyte for a lithium battery and a preparation method therefor, belonging to the technical field of lithium secondary batteries. The quasi-solid electrolyte is of a porous network structure prepared by a condensation reaction of a lithium salt, an ionic liquid, a silane coupling agent and a catalyst and has high ion conductivity; the quasi-solid electrolyte is capable of stabilizing the stripping/deposition process of metal lithium and preventing lithium dendrites from growing, and shows relatively low over-potential and long-term cycling stability during the constant current polarization process; and the interface impedance of a metal lithium sheet and the quasi-solid electrolyte is relatively small and is hardly increased with prolonging the battery placement time. The preparation process of the quasi-solid electrolyte is simple with the use of conventional apparatus, the raw materials are readily available, and the quasi-solid electrolyte is safe without pollution and is suitable for mass batch production.