Conductive coatings for PEM fuel cell electrodes

Details Conductive coatings for PEM fuel cell electrodes Conductive coatings for PEM fuel cell electrodes

2006-03-22

2009-08-18

Weiner, Laura S (Department: 1795)

Chemistry: electrical current producing apparatus, product, and

With pressure equalizing means for liquid immersion operation

C429S006000, C429S006000, C429S006000, C429S010000

Reexamination Certificate

active

07575827

ABSTRACT:
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-cm2. The metal alloy is oxidized to form a layer of metal oxide having a thickness of about 10−8cm to about 10−2cm and a resistivity no greater than about 107ohm-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.

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