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:
Apr. 25, 2023
Filed:
Oct. 27, 2021
SK Innovation Co., Ltd., Seoul, KR;
Sang Bok Kim, Daejeon, KR;
Sang Hye Shin, Daejeon, KR;
Sang Min Park, Daejeon, KR;
Tae Kyoung Lee, Daejeon, KR;
Myoung Lae Kim, Daejeon, KR;
Jeong Bae Yoon, Daejeon, KR;
Jik Soo Kim, Daejeon, KR;
Ji Hoon Choi, Daejeon, KR;
SK ON CO., LTD., Seoul, KR;
Abstract
The cathode active material for a lithium secondary battery according to embodiments of the present invention includes a lithium-transition metal composite oxide particle including a plurality of primary particles, and the lithium-transition metal composite oxide particle includes a lithium-sulfur-containing portion formed between the primary particles. Thereby, it is possible to improve life-span properties and capacity properties by preventing the layer structure deformation of the primary particles and removing residual lithium.