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. 16, 2016
Filed:
Jan. 23, 2012
Applicants:
Toru Terakawa, Nagahama, JP;
Takeyoshi Yamada, Nagahama, JP;
Yasushi Usami, Nagahama, JP;
Inventors:
Assignee:
Mitsubishi Plastics, Inc., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 10/0562 (2010.01); H01M 6/18 (2006.01); H01M 2/16 (2006.01); C08J 5/18 (2006.01); B32B 15/085 (2006.01); B32B 15/20 (2006.01); B32B 27/08 (2006.01); B32B 27/32 (2006.01); B32B 3/26 (2006.01);
U.S. Cl.
CPC ...
H01M 2/1653 (2013.01); B32B 3/266 (2013.01); B32B 15/085 (2013.01); B32B 15/20 (2013.01); B32B 27/08 (2013.01); B32B 27/32 (2013.01); C08J 5/18 (2013.01); B32B 2307/518 (2013.01); B32B 2307/724 (2013.01); B32B 2437/00 (2013.01); B32B 2439/70 (2013.01); B32B 2457/10 (2013.01); C08J 2323/02 (2013.01);
Abstract
This polyolefin resin porous film can be easily produced, and when used as a non-aqueous electrolyte cell separator, can suppress clogging and can evince a high cell output. The polyolefin resin porous film is a porous film having a polyolefin resin as the primary component and is characterized by the average flow diameter pressure (P) being 1500-2500 kPa, the bubble point pressure (P) being 300-1500 kPa, and the ratio (Pa/P) of the air permeability (Pa) and the bubble point pressure (P) being no greater than 0.35 sec/(100 ml·kPa).