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PEM fuel cell with a flow restrictor in a fuel cell flow field
PEM fuel cell with a flow restrictor in a fuel cell flow field
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机译：在燃料电池流场中带有限流器的PEM燃料电池
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摘要
A PEM fuel cell comprising (1) a proton exchange membrane having opposed cathode and anode surfaces on opposite sides of the membrane, (2) a gas permeable, electrically conductive current collector (42, 44) engaging at least one of the surfaces, and (3 ) a current collection plate (58, 60) engaging the gas permeable current collector (42, 44) and defining a gas flow field (18, 20, 22, 24) facing the gas permeable current collector (42, 44), the flow field (18, 20, 22, 24) includes a plurality of lands (64) engaging the gas permeable current collector (42, 44) and defining a plurality of gas flow channels (66), each of the flow channels (66) being (a) an inlet end, communicating with a supply manifold (72) which supplies all of the flow channels (66) with a reactant gas at a first pressure, and (b) has an exit end connected to a purge manifold (74) i n connection, which receives the gas from the flow channels (66), a first flow restrictor (94) in an inlet end of a first flow channel (66) to the ...
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