Fuel Cell Device

A portion of a fuel electrode corresponding to a portion in a fuel gas flow path where water accumulates is made to contain no catalyst, thus preventing abnormal reaction from occurring, and consequently enabling sure prevention of degradation of the fuel electrode and reduction in fuel cell perform...

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Bibliographic Details
Main Authors TAKADA NORIYUKI, NONOBE TOSHIHIKO
Format Patent
LanguageEnglish
Published 10.12.2009
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Summary:A portion of a fuel electrode corresponding to a portion in a fuel gas flow path where water accumulates is made to contain no catalyst, thus preventing abnormal reaction from occurring, and consequently enabling sure prevention of degradation of the fuel electrode and reduction in fuel cell performance. For that purpose, in a fuel cell device, a fuel cell having an electrolyte layer interposed between the fuel electrode and an oxygen electrode includes a cell module laminated so as to interpose a separator formed with the fuel gas flow path along the fuel electrode, and a fuel gas flows substantially perpendicularly to the direction of gravity in the fuel gas flow path. The fuel electrode includes a catalyst-absent portion which contains no catalyst, provided in a portion corresponding to a water-accumulating portion in which water is accumulated, in the fuel gas flow path.
Bibliography:Application Number: US20070224435