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:
Feb. 09, 2010
Filed:
Jun. 30, 2006
Applicants:
Nagayuki Kanaoka, Saitama, JP;
Masaru Iguchi, Saitama, JP;
Hiroshi Sohma, Saitama, JP;
Inventors:
Assignee:
Honda Motor Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01B 1/00 (2006.01); H01M 8/10 (2006.01); B01J 49/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A membrane-electrode assembly for solid polymer electrolyte fuel cells, in which a sulfonic acid is an ion exchange group, and the heat resistance is superior, is provided. The membrane-electrode assembly for solid polymer electrolyte fuel cells contains a polymer including a principal chain that forms polyphenylene structure, a branched chain having a sulfonic acid group, and a branched chain having a nitrogen-containing heterocyclic group. It is preferred that a branched chain having a nitrogen-containing heterocyclic group is a structure expressed by the general formula (D) below.