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:
Jun. 16, 2026
Filed:
Nov. 23, 2022
Samsung Sdi Co., Ltd., Yongin-si, KR;
Inhyuk Son, Yongin-si, KR;
Guesung Kim, Yongin-si, KR;
Sangkook Mah, Yongin-si, KR;
Kyueun Shim, Yongin-si, KR;
Andrei Kapylou, Yongin-si, KR;
Sungnim Jo, Yongin-si, KR;
Jinhwan Park, Yongin-si, KR;
Jongseok Moon, Yongin-si, KR;
Samsung SDI Co., Ltd., Yongin-si, KR;
Abstract
A composite cathode active material, a cathode and a lithium battery including the composite cathode active material, and a preparation method of the composite cathode active material are provided. The composite cathode active material includes a first core including a first lithium transition metal oxide; a second core including a second lithium transition metal oxide; and a shell along a surface of at least one of the first core or the second core, wherein the shell includes a first metal oxide represented by Formula MOand a carbonaceous material, wherein the first metal oxide is within a carbonaceous metal matrix, the first lithium transition metal oxide and the second lithium transition metal oxide have a different particle size from each other, and the second lithium transition metal oxide includes a primary particle having a particle size of about 1 μm or more.