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:
Nov. 26, 2013
Filed:
Jul. 18, 2012
Chanho Lee, Yongin-si, KR;
Kiwoon Kim, Yongin-si, KR;
Young Ju Ahn, Yongin-si, KR;
Jinho Lee, Yongin-si, KR;
Junpyo Park, Yongin-si, KR;
Chanho Lee, Yongin-si, KR;
Kiwoon Kim, Yongin-si, KR;
Young Ju Ahn, Yongin-si, KR;
Jinho Lee, Yongin-si, KR;
Junpyo Park, Yongin-si, KR;
Samsung SDI Co., Ltd., Yongin-si, KR;
Abstract
A secondary battery includes an electrode assembly, which has improved safety by reducing a density of an active material centrally positioned in the electrode assembly. In the secondary battery, an electrode assembly includes a first electrode plate, a second electrode plate and a separator between the first electrode plate and the second electrode plate, the first electrode plate including a first electrode current collector and a first active material layer on the first electrode current collector, the first active material layer including a first active material, a binder and a conductive agent, and a portion of the first active material layer at a central portion of the electrode assembly including the first active material at a lower density than a density of the first active material at a portion of the first active material layer at a peripheral portion of the electrode assembly.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile