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. 01, 2025
Filed:
May. 21, 2020
Samsung Sdi Co., Ltd., Yongin-si, KR;
Seoul National University R&db Foundation, Seoul, KR;
Samsung SDI Co., Ltd., Yongin-si, KR;
Seoul National University R&DB Foundation, Seoul, KR;
Abstract
Provided are a cathode for a secondary battery, a manufacturing method therefor, and a lithium secondary battery comprising same, the cathode comprising: a cathode current collector; a first layer which is arranged on at least one surface of the cathode current collector and which comprises a first cathode active material; and a second layer which is arranged on the first layer and which comprises a second cathode active material, wherein the first cathode active material is represented by the following chemical formula 1, the second cathode active material is represented by the following chemical formula 1 or 2, and the first cathode active material and the second cathode active material are different from each other.LiNiMO <Chemical formula 1>LiCoM'1O <Chemical formula 2> See the Detailed Description of the Invention for the definitions of x, y, a, p, M and M′ in the formulas.