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:
Sep. 01, 2020
Filed:
Jan. 22, 2018
Samsung Electronics Co., Ltd., Suwon-si, Gyeonggi-do, KR;
Samsung Sdi Co., Ltd., Yongin-si, Gyeonggi-do, KR;
Junho Park, Seoul, KR;
Kwangjin Park, Seongnam-si, KR;
Youhwan Son, Seongnam-si, KR;
Kanghee Lee, Suwon-si, KR;
Sukgi Hong, Seongnam-si, KR;
Byungjin Choi, Seoul, KR;
SAMSUNG ELECTRONICS CO., LTD., Gyeonggi-Do, KR;
SAMSUNG SDI CO., LTD., Gyeonggi-Do, KR;
Abstract
A composite cathode active material, and a cathode and a lithium battery each including the composite cathode active material. The composite cathode active material includes: a core including a first lithium transition metal oxide represented by Formula 1,LiMOwherein, in Formula 1, M includes Ni and at least one non-nickel Group 4 to Group 13 element, a content of Ni is about 70 mol % or greater, based on a total content of M, 0.9≤a≤1.1, and wherein the first lithium transition metal oxide has a layered crystal structure belonging to an Rm space group; and a shell on a surface of the core, the shell having a spinel crystal structure and including a dopant.