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OwnerGayatri Vyas, Mahmoud Abd Elhamid +5inventors
InventorsGayatri Vyas, Mahmoud Abd Elhamid, Thomas Trabold, Keith Newman, Richard Blunk, Youssef Mikhail, Reena Datta
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A flow field plate for a fuel cell that includes a metal oxide coating that makes the plate hydrophilic. In one embodiment, the metal oxide coating is a thin film to maintain the conductive properties of the flow field plate. The metal oxide can be combined with a conductive oxide. According to another embodiment, the metal oxide coating is deposited as islands on the flow field plate so that the flow field plate is exposed between the islands. According to another embodiment, lands between the flow channels are polished to remove the metal oxide layer and expose the flow field plate. According to another embodiment, the flow field plate is blasted with alumina so that embedded alumina particles and the roughened surface of the plate provide the hydrophilicity.
A fuel cell comprising a flow field plate being made of a conductive plate material, said flow field plate including a plurality of flow channels separated by lands where the flow channels are responsive to a reactant gas, said flow field plate further including an outer metal oxide layer that makes the flow field plate hydrophilic.
A fuel cell comprising a flow field plate being made of a conductive plate material, said flow field plate including a plurality of flow channels, said flow field plate including an embedded layer in an outer surface of the flow field plate that makes the plate hydrophilic, said embedded layer including particles of a metal oxide.
A method for making a flow field plate for a fuel cell, said method comprising:
Dependencies are inferred from the claim text.