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. 11, 2011
Filed:
Aug. 05, 2010
Tomoaki Arimura, Hamura, JP;
Tomoaki Arimura, Hamura, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
According to one embodiment, a direct-methanol fuel cell includes an anode into which an aqueous methanol solution is introduced as fuel, a cathode into which an oxidizing agent is introduced, an electrolyte membrane interposed between the anode and the cathode, an anode separator which is disposed on the anode side and includes a fuel passage formed on a surface facing the anode, and a cathode separator which is disposed in the cathode side and includes an oxidizing gas passage formed on a surface facing the cathode. At least the cathode separator is provided with a coating film including a macromolecular polymer having a water-repellent functional group and an ionic functional group, the coating film being formed on at least an inside surface of the oxidizing gas passage.