FUEL CELL ELECTRODE, FUEL CELL, AND FUEL CELL STACK
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United States of America Patent
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Issued Date -
Apr 2, 2009
app pub date -
Oct 31, 2006
filing date -
Dec 16, 2005
priority date (Note) -
Abandoned
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Abstract
This invention provides an electrode for a fuel battery, which can improve both current collection properties and oxidizing gas and/or fuel feedability by allowing produced water to be more easily removed, and a cell for a fuel battery, and a stack for a fuel battery. The electrode for a fuel battery comprises a net material (51, 52), a microporous layer (MPL) (51b, 52b) formed integrally on one side of the net material (21, 22), and a catalyst layer (51c, 52c) formed integrally on one side of the net material (21, 22) closer to the surface. The net material (51, 52) is in a plate form and has an electrically conductive material plate (53) on its other side. The microporous layer (51b, 52b) has a number of interconnected micropores and, at the same time, is electrically conductive and repellent to water. The net material (51, 52) has a number of interconnected voids and, at the same time, is electrically conductive, and each void, together with the plate (53), constitutes an air chamber or a fuel chamber. The catalyst layer (51c, 52c) abuts against an electrolyte membrane (54).
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