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:
Sep. 01, 2026
Filed:
Feb. 18, 2021
Lg Energy Solution, Ltd., Seoul, KR;
Jung Min Lee, Daejeon, KR;
Young Min Lim, Daejeon, KR;
Chul Haeng Lee, Daejeon, KR;
Yi Jin Jung, Daejeon, KR;
Chul Eun Yeom, Daejeon, KR;
LG Energy Solution, Ltd., Seoul, KR;
Abstract
A non-aqueous electrolyte solution for a lithium secondary battery and a lithium secondary battery including the same are disclosed herein. In some embodiments, a non-aqueous electrolyte solution includes a lithium salt at a concentration of 1.5 M to 2.0 M, an organic solvent containing ethylene carbonate and ethyl propionate, and a first additive represented by Formula 1, wherein the ethylene carbonate and the ethyl propionate are present in a volume ratio of 1:9 to 1.5:8.5:NC—R—CH═CH—R—CN [Formula 1] In Formula 1, R and Rare each independently a substituted or unsubstituted alkylene group having 1 to 5 carbon atoms.