Direct methanol fuel cell including integrated flow field and method of fabrication
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United States of America Patent
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Dec 24, 2002
Grant Date -
Jun 20, 2002
app pub date -
Dec 15, 2000
filing date -
Dec 15, 2000
priority date (Note) -
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Abstract
A fuel cell device and method of forming the fuel cell device including a base portion, formed of a singular body, and having a major surface. At least one fuel cell membrane electrode assembly is formed on the major surface of the base portion. A fluid supply channel including a mixing chamber is defined in the base portion and communicating with the fuel cell membrane electrode assembly for supplying a fuel-bearing fluid to the membrane electrode assembly. An exhaust channel is defined in the base portion and communicating with the membrane electrode. A multi-dimensional fuel flow field is defined in the multi-layer base portion and in communication with the fluid supply channel, the membrane electrode assembly and the exhaust channel.
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