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:
Oct. 06, 2026
Filed:
Mar. 10, 2022
Samsung Sdi Co., Ltd., Yongin-si, KR;
Sungnim Jo, Yongin-si, KR;
Sangkook Mah, Yongin-si, KR;
Inhyuk Son, Yongin-si, KR;
Guesung Kim, Yongin-si, KR;
Jongseok Moon, Yongin-si, KR;
Andrei Kapylou, Yongin-si, KR;
Samsung SDI Co., Ltd., Yongin-si, KR;
Abstract
Provided are a composite cathode active material, a cathode and a lithium battery that include the same, and a method of preparing the composite cathode active material, the composite cathode active material comprising: a core; and a first shell and a second shell that are disposed on an outer side of a surface of the core, wherein the first shell includes at least one first metal compound represented by Formula XO(where 0<a≤3, 0<b≤4, and when a is 1, 2, or 3, b is an integer) or Formula X(OH)(where 0<a≤3, 0<b≤4, and when a is 1, 2, or 3, b is an integer), the second shell includes at least one second metal compound represented by Formula YO(where 0<c≤3, 0<d<4, and when c is 1, 2, or 3, d is not an integer); and graphene, the at least one second metal compound is disposed in a graphene matrix, X and Y are each independently a metal selected from Groups 2 to 13, 15, and 16 of the Periodic Table of Elements.