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:
Jan. 05, 2021
Filed:
Apr. 13, 2018
Lg Chem, Ltd., Seoul, KR;
Seungha Kim, Daejeon, KR;
Youngcheol Choi, Daejeon, KR;
Jonghyun Chae, Daejeon, KR;
Kyoung Hoon Kim, Daejeon, KR;
Yeonju Lee, Daejeon, KR;
Daeil Kim, Daejeon, KR;
Lucia Kim, Daejeon, KR;
LG CHEM, LTD., Seoul, KR;
Abstract
A polymer solid electrolyte having high ion conductivity and interfacial stability is provided. An additive including an organic compound having a highest occupied molecular orbital (HOMO) energy of −8.5 eV or higher is used, which facilitates film formation in a positive electrode due to low oxidation potential. The resulting polymer solid electrolytes have enhanced film formation on the surface of a positive electrode surface and enhanced interfacial stability, while maintaining battery performance. Lithium secondary battery having enhanced performance are also described.