Fuel cell having stack structure
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United States of America Patent
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Dec 29, 2009
Grant Date -
May 19, 2005
app pub date -
Oct 12, 2004
filing date -
Nov 6, 2003
priority date (Note) -
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Abstract
A fuel cell having a stack structure is provided. The fuel cell includes plural unit cells each of which includes an anode and a cathode which are provided on both sides of a predetermined electrolyte membrane, and a catalytic layer which is provided in at least one of the anode and the cathode, and which supports a catalyst for promoting an anode reaction or a cathode reaction, the plural unit cells being stacked to form a stack structure. In the fuel cell, the plural unit cells include a unit cell including a catalyst layer supporting a catalyst which is different from catalysts supported by catalyst layers of other unit cells in at least one of type, weight, and specific surface area.
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