Conductive coatings for PEM fuel cell electrodes

2−8 −2 7 A bipolar plate for use in a stack of fuel cell modules includes a bipolar plate that has at least one surface containing a metal alloy oxidizable to form a metal oxide having a surface resistance no greater than about 0.007 ohm-cm. The metal alloy is oxidized to form a layer of metal oxide...

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Bibliographische Detailangaben
Hauptverfasser: Mantese, Joseph V, Oakley, Charles D
Format: Patent
Sprache:eng
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Zusammenfassung:2−8 −2 7 A bipolar plate for use in a stack of fuel cell modules includes a bipolar plate that has at least one surface containing a metal alloy oxidizable to form a metal oxide having a surface resistance no greater than about 0.007 ohm-cm. The metal alloy is oxidized to form a layer of metal oxide having a thickness of about 10cm to about 10cm and a resistivity no greater than about 10ohm-cm. In addition to their use in fuel cells, the alloys can be employed to form conductive surfaces of electrical contacts useful for various electrical devices.