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. 30, 2022
Filed:
Mar. 03, 2020
Samsung Sdi Co., Ltd., Yongin-si, KR;
SAMSUNG SDI CO., LTD., Yongin-si, KR;
Abstract
An electrode and a secondary battery, the electrode including a conductive substrate; and a plurality of active material layers on the conductive substrate, wherein the plurality of active material layers includes a first active material layer and a second active material layer; the first active material layer is on the substrate, the second active material layer is on the first active material layer; the first active material layer includes a first active material and a first binder; the second active material includes a second active material and a second binder; the first active material layer or the second active material layer includes convex portions and concave portions, and the concave portions have a triangular cross section or a trapezoidal cross section.