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:
Mar. 22, 2016
Filed:
Feb. 07, 2013
Applicant:
Toray Battery Separator Film Co., Ltd., Nasushiobara-shi, JP;
Inventors:
Naoki Mizuno, Nasushiobara, JP;
Michihiko Irie, Nasushiobara, JP;
Masanori Nakamura, Nasushiobara, JP;
Ken Shimizu, Nasushiobara, JP;
Assignee:
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 2/166 (2013.01); H01M 2/145 (2013.01); H01M 2/1686 (2013.01); H01M 10/052 (2013.01);
Abstract
A battery separator includes a porous membrane A including a polyethylene resin, and a porous membrane B laminated thereon including a heat resistant resin and inorganic particles or cross-linked polymer particles, wherein the porous membrane A satisfies expressions (a) to (c), and the entire battery separator satisfies expressions (d) to (f).