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:
Aug. 25, 2015
Filed:
May. 24, 2012
Atsunori Matsuda, Toyohashi, JP;
Song-yul OH, Toyohashi, JP;
Toshihiro Yoshida, Toyohashi, JP;
Go Kawamura, Toyohashi, JP;
Junichi Hamagami, Hachioji, JP;
Mototsugu Sakai, Kosai, JP;
Atsunori Matsuda, Toyohashi, JP;
Song-Yul Oh, Toyohashi, JP;
Toshihiro Yoshida, Toyohashi, JP;
Go Kawamura, Toyohashi, JP;
Junichi Hamagami, Hachioji, JP;
Mototsugu Sakai, Kosai, JP;
NATIONAL UNIVERSITY CORPORATION TOYOHASHI UNIVERSITY OF TECHNOLOGY, Toyohashi-Shi, Aichi, JP;
Abstract
A composite membrane that can be used as an electrolyte membrane of a fuel cell is produced from a resin material that contains at least polybenzimidazole and from a composite material that is produced from of hydrogen sulfate and heteropoly acid. The composite membrane has a basic structure of an aromatic hydrocarbon that does not contain fluorine and has good efficiency, even at a low doping level, so it can be used for the electrolyte membrane of a medium temperature dry fuel cell. Phosphoric acid is doped into the composite membrane. Characteristics of the relationship between output current density and output voltage for an electrolyte membrane that is made from the created composite membrane (a specimen) are better than for a specimen, in which the amount of phosphoric acid doping is equivalent.