FUEL CELL AND ELECTRODE MATERIAL FOR FUEL CELL
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United States of America Patent
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Issued Date -
Aug 5, 2010
app pub date -
Mar 22, 2006
filing date -
Mar 30, 2005
priority date (Note) -
Abandoned
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Abstract
The present invention provides a fuel cell which is good in gas permeability of a diffusion layer, exhibits good discharge of water vapor and a carbon dioxide gas, and can improve output properties. The fuel cell includes a cell (20), which comprises an electrolyte membrane (22), a cathode layer (24) provided on one side of the electrolyte membrane and an anode layer (26) provided on the other side thereof and in which a redox reaction takes place between a fed fuel, such as methane, and an oxidizing agent, such as oxygen, through the electrolyte membrane (22) to generate an electromotive force, and is characterized in that a diffusion layer (24b, 26b), which is composed of a carbon fiber fabric having a protrusion part (24c, 26c) protruded outward from a side face to which a fuel or oxidizing agent will be fed, is provided on at least one of the cathode layer (24) and the anode layer (26).
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