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:
Jul. 21, 2026
Filed:
Oct. 04, 2022
Lg Energy Solution, Ltd., Seoul, KR;
Ha Eun Kim, Daejeon, KR;
Chul Haeng Lee, Daejeon, KR;
Jeong Woo Oh, Daejeon, KR;
Byung Chun Park, Daejeon, KR;
Hyung Tae Kim, Daejeon, KR;
Young Mi Seo, Daejeon, KR;
LG Energy Solution, Ltd., Seoul, KR;
Abstract
The present disclosure relates to a lithium secondary battery in which an abnormal voltage drop phenomenon is improved. The lithium secondary battery comprises a negative electrode comprising a negative electrode active material, a positive electrode comprising a positive electrode active material represented by Formula 1, a separator disposed between the positive electrode and the negative electrode, and a non-aqueous electrolyte solution, wherein the non-aqueous electrolyte solution comprises a lithium salt, a non-aqueous organic solvent, a compound represented by Formula 2 as a first additive, and lithium difluorophosphate as a second additive:LiNiCOMMO [Formula 1]