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:
Sep. 25, 2012
Filed:
May. 29, 2009
Takaki Nakagawa, Saitama, JP;
Ryohei Ishimaru, Saitama, JP;
Takaki Nakagawa, Saitama, JP;
Ryohei Ishimaru, Saitama, JP;
Honda Motor Co., Ltd., Tokyo, JP;
Abstract
A membrane-electrode assembly for a solid polymer electrolyte fuel cell is provided that uses a proton conductive membrane having high proton conductivity and also superior heat resistance and chemical durability. A membrane-electrode assembly for a solid polymer electrolyte fuel cell is provided with an anode on one side of a proton conductive membrane and a cathode on another side thereof, and the proton conductive membrane is a sulfonated polyarylene containing a structure expressed by the general formula (1) below:—R—Z—R  (1)In the formula (1), Z represents at least one structure selected from the group consisting of —CO—, —SO—, and —SO—; Rrepresents a direct bond or any divalent organic group; and Rrepresents a nitrogen-containing heterocyclic group.