- Patent Title: Solid polymer electrolyte comprising an alkoxysilane compound having a urethane bond, a method of preparing the electrolyte, and a lithium secondary battery including
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Application No.: US16186624Application Date: 2018-11-12
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Publication No.: US10797346B2Publication Date: 2020-10-06
- Inventor: Ki Young Kim , Bong Sang Cho , Jun Choi , Ji San Jeong , Kyung Min Kim , Seong Kwan Kim , Yong Pyo Lee
- Applicant: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY
- Applicant Address: KR Cheonan-si, Chungcheongnam-do
- Assignee: Korea Institute of Industrial Technology
- Current Assignee: Korea Institute of Industrial Technology
- Current Assignee Address: KR Cheonan-si, Chungcheongnam-do
- Agency: Rabin & Berdo, P.C.
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@55a0dd0a
- Main IPC: H01M10/0565
- IPC: H01M10/0565 ; H01M10/0525 ; C08G77/54
Abstract:
A solid polymer electrolyte includes a matrix prepared by subjecting an alkoxysilane compound having a urethane bond represented by Structural Formula 1 below and an alkoxysilane compound represented by Structural Formula 2 below to a sol-gel reaction; and a lithium salt dispersed in the matrix, and The solid polymer electrolyte composition is configured such that silsesquioxane is linked to a polycarbonate diol-based polymer chain having a urethane bond. The solid polymer electrolyte exhibits superior compatibility, stability, flexibility, mechanical properties and ionic conductivity.
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