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:
Jun. 29, 2021
Filed:
Dec. 08, 2005
Hideaki Katayama, Osaka, JP;
Toshihiro Abe, Osaka, JP;
Nobuaki Matsumoto, Osaka, JP;
Fusaji Kita, Osaka, JP;
Shigeo Aoyama, Osaka, JP;
Hideaki Katayama, Osaka, JP;
Toshihiro Abe, Osaka, JP;
Nobuaki Matsumoto, Osaka, JP;
Fusaji Kita, Osaka, JP;
Shigeo Aoyama, Osaka, JP;
Maxell Holdings, Ltd., Kyoto, JP;
Abstract
An electrochemical device having excellent safety at high temperature is provided by using a separator for an electrochemical device, which is made of a porous film comprising: a porous base () having a heat-resistant temperature of 150° C. or higher and including filler particles (); at least one kind of shutdown resin () selected from the group consisting of resin A that has a melting point in a range of 80° C. to 130° C. and resin B that absorbs an electrolyte and swells due to heating, and the swelling degree is increased as the temperature rises; and a binder ().