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:
Apr. 12, 2011
Filed:
Dec. 21, 2006
Kenji Kobayashi, Minato-ku, JP;
Tetsuaki Hirayama, Minato-ku, JP;
Hideaki Sasaki, Minato-ku, JP;
NEC Corporation, Tokyo, JP;
Abstract
A solid polymer fuel cell includes an electrode-electrolyte membrane coupling structureconfigured to generate electric power through a chemical reaction between a fuel aqueous solution and an oxidant; a hydrophilic membranemade of a hydrophilic material; and a repellent porous membranemade of a repellent material. The repellent porous membraneis arranged between the electrode-electrolyte membrane coupling structureand the hydrophilic membrane. The fuel aqueous solution is supplied through the hydrophilic membraneand the repellent porous membraneto the electrode-electrolyte membrane coupling structure. At this time, the solid polymer fuel cellcan prevent the fuel from being excessively permeated, even though using the fuel aqueous solution of the high concentration. Also, the solid polymer fuel cell can prevent a lack of the water on the anodeand the increase in the crossover of the fuel to the cathode, and can suppress the property deterioration and can obtain the sufficient electric generation property.