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:
Jul. 19, 2011
Filed:
Apr. 01, 2010
Nagayuki Kanaoka, Wako, JP;
Naoki Mitsuta, Wako, JP;
Yuichiro Hama, Osaka, JP;
Ryoichiro Takahashi, Wako, JP;
Hiroshi Souma, Wako, JP;
Masaru Iguchi, Wako, JP;
Yoichi Asano, Wako, JP;
Nagayuki Kanaoka, Wako, JP;
Naoki Mitsuta, Wako, JP;
Yuichiro Hama, Osaka, JP;
Ryoichiro Takahashi, Wako, JP;
Hiroshi Souma, Wako, JP;
Masaru Iguchi, Wako, JP;
Yoichi Asano, Wako, JP;
Honda Motor Co., Ltd., Tokyo, JP;
Abstract
A membrane electrode assembly for a polymer electrolyte fuel cell has superior power generation characteristics under low humidity conditions and superior starting characteristics under low temperature conditions. In the membrane electrode assembly for a polymer electrolyte fuel cell in which a polymer electrolyte membrane is disposed between a pair of electrodes containing a catalyst, the polymer electrolyte membrane has a polymer segment A having an ion conductive component and a polymer segment B not having an ion conductive component. Furthermore, in the case in which the polymer electrolyte membrane is immersed in water at 90° C. for 30 minutes, absorbed water which exhibits a thawing temperature of from −30 to 0° C. is in a range from 0.01 to 3.0 g per 1 g of the polymer.