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:
Mar. 30, 2004
Filed:
May. 17, 2001
Applicant:
Inventors:
Assignee:
Kabushiki Kaisha Toyota Chuo Kenkyusho, Aichi-gun, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 8/10 ;
U.S. Cl.
CPC ...
H01M 8/10 ;
Abstract
Disclosed is a membrane electrode assembly obtained by bonding electrodes to both surfaces of a solid polymer electrolyte membrane suitably for use in a solid polymer fuel cell. In order to maintain not only the solid polymer electrolyte but also the electrode in appropriate wet states, the catalyst layer of the assembly contains a metalloxane polymer in the intra-catalyst-layer electrolyte including an electrode catalyst preferably in an amount of 0.5 to 50 wt % of the total weight of the intra-catalyst-layer electrolyte and the metalloxane polymer contained therein exclusive of the electrode catalyst.