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. 22, 2014
Filed:
Apr. 18, 2012
Applicant:
Yong-kyun Park, Yongin-si, KR;
Inventor:
Yong-Kyun Park, Yongin-si, KR;
Assignee:
Samsung SDI Co., Ltd., Giheung-gu, Yongin-si, Gyeonggi-do, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/02 (2006.01); H01M 4/13 (2010.01); H01M 6/48 (2006.01); H01M 10/18 (2006.01);
U.S. Cl.
CPC ...
Abstract
A secondary battery including an intermediate layer having a pattern formed by carbon and a binder between a substrate and an active material layer and reinforcing adhesion between the substrate and the active material layer. In the intermediate layer, the carbon and the binder in the intermediate layer are adjacent to each other. Therefore, the active material is prevented from being detached from the substrate, thereby improving performance of the secondary battery. A small amount of the binder having strong adhesion is used in the active material slurry, thereby ensuring safety of the battery.