Electrically conductive element treated for use in a fuel cell

Chemistry: electrical current producing apparatus – product – and – Fuel cell – subcombination thereof – or method of making or... – Electrical current collector

Reexamination Certificate

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Details

C429S520000, C429S521000, C429S522000, C427S115000

Reexamination Certificate

active

08003279

ABSTRACT:
An electrically conductive element for a proton exchange membrane fuel cell having low electrical contact resistance and high corrosion resistance. The conductive element comprises a corrosion susceptible metal substrate with a surface, which is preferably treated to activate the surface (i.e., to remove a passivation layer of oxides from the surface) with an acidic treatment solution. The treated surface is then overlaid with an electrically conductive, corrosion-resistant, protective coating to protect the substrate re-forming a passivation layer while exposed to the corrosive environment of the fuel cell.

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German Office Action issued in related German Patent Application No. DE 10 2004 038 632.3-45. German language document.

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