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:
Oct. 09, 2018
Filed:
Nov. 21, 2012
Applicant:
Samsung Sdi Co., Ltd., Yongin-si, Gyeonggi-do, KR;
Inventors:
Ihn Kim, Yongin-si, KR;
Sam-Jin Park, Yongin-si, KR;
Jung-Ock Yeou, Yongin-si, KR;
Kwi-Seok Choi, Yongin-si, KR;
Assignee:
Samsung SDI Co., Ltd., Yongin-si, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 2/16 (2006.01); H01M 2/14 (2006.01); H01M 10/052 (2010.01);
U.S. Cl.
CPC ...
H01M 2/1633 (2013.01); H01M 2/145 (2013.01); H01M 2/166 (2013.01); H01M 2/168 (2013.01); H01M 2/1673 (2013.01); H01M 2/1686 (2013.01); H01M 10/052 (2013.01); H01M 2/1646 (2013.01); H01M 2/1653 (2013.01);
Abstract
A separator for a lithium battery includes a porous substrate and a coating layer on at least one side of the porous substrate, the coating layer having a first side adjacent to the porous substrate, and a second side opposite the first side. The coating layer may include an inorganic compound and a polymer binder, and an amount of the polymer binder at the second side is greater than an amount of the polymer binder at the first side. A rechargeable lithium battery includes the separator.