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:
Jun. 19, 2018
Filed:
Apr. 20, 2015
Applicants:
Lg Chem, Ltd., Seoul, KR;
Toray Industries, Inc., Tokyo, JP;
Inventors:
Jeong-Min Ha, Daejeon, KR;
Su-Jin Yoon, Daejeon, KR;
Jong-Hun Kim, Daejeon, KR;
Byoung-Jin Shin, Daejeon, KR;
Joo-Sung Lee, Daejeon, KR;
Jin-Woo Kim, Daejeon, KR;
Da-Kyung Han, Daejeon, KR;
Assignees:
LG Chem, Ltd., , KR;
TORAY INDUSTRIES, INC., , JP;
Primary Examiner:
Int. Cl.
CPC ...
H01G 11/52 (2013.01); H01M 2/16 (2006.01); H01M 10/052 (2010.01); H01M 2/14 (2006.01); H01M 8/0239 (2016.01); H01M 8/0245 (2016.01);
U.S. Cl.
CPC ...
H01G 11/52 (2013.01); H01M 2/145 (2013.01); H01M 2/166 (2013.01); H01M 2/1666 (2013.01); H01M 2/1686 (2013.01); H01M 8/0239 (2013.01); H01M 8/0245 (2013.01); H01M 10/052 (2013.01); Y02E 60/13 (2013.01);
Abstract
The present disclosure provides a separator comprising a porous substrate, a porous coating layer and a binder layer, the binder comprising at least one homopolymer of polyvinylidene fluoride and at least one copolymer of polyvinylidene fluoride (PVDF)-co-hexafluoropropylene (HFP) so that a content difference of hexafluoropropylene (HFP) present in the two compounds is about 3 wt % or higher.