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:
Apr. 09, 2019
Filed:
Apr. 07, 2014
Applicant:
Toray Battery Separator Film Co., Ltd., Nasushiobara-shi, JP;
Inventors:
Assignee:
Toray Industries, Inc., , JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 2/16 (2006.01); H01M 2/18 (2006.01); H01M 2/14 (2006.01); B32B 27/00 (2006.01); B32B 37/08 (2006.01); B32B 37/15 (2006.01); H01G 9/02 (2006.01); H01G 11/52 (2013.01); B32B 27/32 (2006.01); B32B 7/12 (2006.01); B32B 15/08 (2006.01); B32B 15/20 (2006.01); B32B 27/08 (2006.01); B32B 27/20 (2006.01); B32B 3/26 (2006.01); B32B 3/30 (2006.01); B32B 37/00 (2006.01); B32B 38/00 (2006.01);
U.S. Cl.
CPC ...
H01M 2/1686 (2013.01); B32B 27/00 (2013.01); B32B 37/08 (2013.01); B32B 37/153 (2013.01); H01M 2/145 (2013.01); H01M 2/1653 (2013.01); H01M 2/18 (2013.01); B32B 3/26 (2013.01); B32B 3/30 (2013.01); B32B 7/12 (2013.01); B32B 15/08 (2013.01); B32B 15/20 (2013.01); B32B 27/08 (2013.01); B32B 27/205 (2013.01); B32B 27/32 (2013.01); B32B 27/327 (2013.01); B32B 37/0038 (2013.01); B32B 2038/0028 (2013.01); B32B 2255/10 (2013.01); B32B 2255/26 (2013.01); B32B 2264/10 (2013.01); B32B 2307/206 (2013.01); B32B 2307/51 (2013.01); B32B 2307/518 (2013.01); B32B 2307/54 (2013.01); B32B 2307/542 (2013.01); B32B 2307/584 (2013.01); B32B 2307/7242 (2013.01); B32B 2457/10 (2013.01); H01G 9/02 (2013.01); H01G 11/52 (2013.01);
Abstract
A laminated porous membrane includes a polyolefin porous membrane, on one surface of which projections that are made of a polyolefin and satisfy 5 μm≤W≤50 μm (W: projection size) and 0.5 μm≤H (H: projection height) are irregularly scattered at a density of 3/cmto 200/cm, and a modifying porous layer laminated on the surface of the polyolefin porous membrane having the projections, wherein the modifying porous layer includes a binder with a tensile strength of at least 5 N/mmand inorganic particles.