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. 23, 2024
Filed:
Oct. 07, 2021
SK on Co., Ltd., Seoul, KR;
Sung Yon Oh, Daejeon, KR;
In Haeng Cho, Daejeon, KR;
Dong Gun Lee, Daejeon, KR;
Jin Haek Yang, Daejeon, KR;
SK On Co., Ltd., Seoul, KR;
Abstract
Provided is a lithium secondary battery comprising: a cathode comprising a cathode active material, an anode comprising an anode active material, a separator interposed between the cathode and the anode, and an electrolyte for a secondary battery, wherein the cathode active material is Li(NiCoMn)O, wherein 0.90≤x≤1.10, 0.5≤a≤0.99, 0.005≤b<0.5, 0.005≤c<0.5, and a+b+c=1, and the electrolyte for a secondary battery comprises a lithium salt, a nonaqueous organic solvent, and a cyclic phosphate compound represented by the following Chemical Formula 2: wherein Rto Rand R' and R″ are independently of one another hydrogen or C-Calkyl; Lis —CRR—; and Rand Rare independently of each other C-Calkyl .