The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 16, 2022
Filed:
Jul. 20, 2018
Lg Chem, Ltd., Seoul, KR;
Sujee Kwon, Daejeon, KR;
Jeongae Yoon, Daejeon, KR;
Sung Soo Yoon, Daejeon, KR;
Kyung Oh Kim, Daejeon, KR;
Jonghyun Chae, Daejeon, KR;
Yeonju Lee, Daejeon, KR;
Daeil Kim, Daejeon, KR;
Lucia Kim, Daejeon, KR;
Jongheon Kwak, Daejeon, KR;
LG ENERGY SOLUTION, LTD., Seoul, KR;
Abstract
A solid electrolyte composition for a lithium secondary battery including a fluorine-based polymer having grafted thereon a unit comprising alkylene oxide group and a crosslinkable functional group. The polymer may be formed by a process including grafting a monomer on a fluorine-based polymer, where the monomer includes alkylene oxide group and a crosslinkable functional group. Also disclosed is a solid electrolyte for a secondary battery formed by thermally curing the composition. By graft copolymerizing a monomer including alkylene oxide group and a crosslinkable functional group on a fluorine-based polymer having high lithium ion conductivity, the solid electrolyte is capable of providing a solid electrolyte for a secondary battery having significantly enhanced solid electrolyte ion conductivity and electrochemical stability.