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:
Oct. 02, 2012
Filed:
Apr. 12, 2011
Tomoaki Arimura, Tokyo, JP;
Tomoaki Arimura, Tokyo, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
According to one embodiment, a direct methanol fuel cell includes an anode to which an aqueous methanol solution is supplied as the fuel, a cathode to which oxidizing gas is supplied, an electrolyte membrane interposed between the anode and the cathode, a first separator disposed on the surface of the anode on the side opposite to the electrolyte membrane side and a second separator disposed on the surface of the cathode on the side opposite to the electrolyte membrane side, wherein the first and second separators are respectively made of a membrane containing a copolymer of a first vinyl monomer having a cyclic functional group bonded with a carbonyl group, a second vinyl monomer having a carboxyl group and a third vinyl monomer having an aromatic group, and a carbon powder dispersed in the copolymer.