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:
Aug. 06, 2019
Filed:
Nov. 13, 2013
Applicant:
Teijin Limited, Osaka-shi, Osaka, JP;
Inventor:
Susumu Honda, Yamaguchi, JP;
Assignee:
TEIJIN LIMITED, Osaka-shi, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 2/16 (2006.01); H01M 2/14 (2006.01);
U.S. Cl.
CPC ...
H01M 2/1686 (2013.01); H01M 2/14 (2013.01); H01M 2/16 (2013.01); H01M 2/164 (2013.01); H01M 2/166 (2013.01); H01M 2/168 (2013.01); H01M 2/1646 (2013.01); H01M 2/1653 (2013.01); H01M 2/1666 (2013.01);
Abstract
There is provided a non-aqueous-secondary-battery separator formed of a composite membrane including: a porous base material containing a thermoplastic resin; and a heat-resistant porous layer provided on one or both surfaces of the porous base material and containing an organic binder and an inorganic filler, in which the tortuosity rate of the composite membrane is from 1.5 to 2.0.