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:
Aug. 19, 2025
Filed:
Feb. 15, 2022
SK on Co., Ltd., Seoul, KR;
SK On Co., Ltd., Seoul, KR;
Abstract
A cathode for a lithium secondary battery includes a cathode current collector, and a cathode active material layer including a first cathode active material layer and a second cathode active material layer sequentially stacked on the cathode current collector. The first cathode active material layer includes a first cathode active material particle having a secondary particle structure, and the second cathode active material layer includes a second cathode active material particle having a single particle shape. An adhesive force of the first cathode active material layer to a surface of the cathode current collector is greater than an adhesive force of the second cathode active material layer to a surface of the first cathode active material layer.