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. 07, 2026
Filed:
Mar. 06, 2019
Samsung Sdi Co., Ltd., Yongin-si, KR;
Young-Ki Kim, Yongin-si, KR;
Soonrewl Lee, Yongin-si, KR;
Young-Hun Lee, Yongin-si, KR;
Jiyeon Jang, Yongin-si, KR;
Ickkyu Choi, Yongin-si, KR;
Mingzi Hong, Yongin-si, KR;
Soonkie Hong, Yongin-si, KR;
Samsung SDI Co., Ltd., Yongin-si, KR;
Abstract
The present invention relates to a positive electrode active material for a rechargeable lithium battery and a rechargeable lithium battery including same, wherein the positive electrode active material comprises a core and a surface layer formed on the surface of the core, the core comprising a first crystalline structure, the surface layer comprising a first crystalline structure and a second crystalline structure different from the first crystalline structure, the first crystalline structure being present more than the second crystalline structure in the surface layer.