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. 04, 2026
Filed:
Oct. 20, 2022
SK on Co., Ltd., Seoul, KR;
SK Innovation Co., Ltd., Seoul, KR;
Sang Bok Kim, Daejeon, KR;
Sang Min Park, Daejeon, KR;
Ji Hoon Choi, Daejeon, KR;
Jung Moon Sung, Daejeon, KR;
Sang Hye Shin, Daejeon, KR;
Ji Sun Lee, Daejeon, KR;
Jae Young Choi, Daejeon, KR;
SK On Co., Ltd., Seoul, KR;
Abstract
Embodiments of the present invention provide a cathode active material for a lithium secondary battery. The cathode active material for a lithium secondary battery includes lithium-transition metal composite oxide particles, and a coating formed on each of the lithium-transition metal composite oxide particles. The coating includes a lithium-sulfur compound and a metal hydroxide. A residual lithium on a surface of the cathode active material is sufficiently removed to improve an ionic conductivity and low-resistance.