公开(公告)号：US20190288333A1

公开(公告)日：2019-09-19

申请号：US16186624

申请日：2018-11-12

Applicant: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY

Inventor： Ki Young KIM ,  Bong Sang CHO ,  Jun CHOI ,  Ji San JEONG ,  Kyung Min KIM ,  Seong Kwan KIM ,  Yong Pyo LEE

IPC: H01M10/0565 ,  H01M10/0525 ,  C08G77/54

Abstract: Disclosed is an alkoxysilane compound having a urethane bond, represented by Structural Formula 1 below. The present invention further relates to a solid polymer electrolyte composition, composed of a matrix including alkoxysilane having a urethane bond, a silica precursor and a polymer configured such that silsesquioxane is linked to a polycarbonate diol-based polymer chain having a urethane bond, and a lithium salt. The solid polymer electrolyte of the invention can exhibit superior compatibility, stability, flexibility, mechanical properties and ionic conductivity.