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:
Oct. 02, 2012
Filed:
Jun. 03, 2011
Yoshihiro Uetani, Osaka, JP;
Keisuke Kii, Osaka, JP;
Shigeru Fujita, Osaka, JP;
Satoshi Nishikawa, Osaka, JP;
Tatsuya Okuno, Osaka, JP;
Yoshihiro Uetani, Osaka, JP;
Keisuke Kii, Osaka, JP;
Shigeru Fujita, Osaka, JP;
Satoshi Nishikawa, Osaka, JP;
Tatsuya Okuno, Osaka, JP;
Nitto Denko Corporation, Osaka, JP;
Sunstar Giken Kabushiki Kaisha, Osaka, JP;
Abstract
A reactive polymer-supporting porous film is provided as a battery separator which comprises a porous substrate film and a partially crosslinked reactive polymer supported on the porous substrate film. The partially crosslinked reactive polymer is obtained by the reaction of a crosslinkable polymer having at least one group selected from the 3-oxetanyl group and epoxy group reactive with a polycarboxylic acid. The reactive polymer-supporting porous film has a separator and electrodes sufficiently bonded to each other and with low inner resistance suitably used for production of battery excellent in high rate performance. Further, provided is a method of producing a battery which comprises placing the electrode/reactive polymer-supporting porous film layered body in a battery container; introducing an electrolytic solution containing a cationic polymerization catalyst into the battery container thereby bonding the porous film and electrodes together.