Electrical interconnect for a planar fuel cell
AssigneeCeramic Fuel Cells Limited
InventorsSukhvinder P. S. Badwal, Karl Foger, Don Jaffrey, John Newman
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Abstract
An electrical interconnect device for a planar fuel cell having solid oxide electrolyte, a cathode and a nickel-containing anode comprises a plate-like chromium-containing substrate having fuel gas-flow channels on one side and an oxidation-resistant coating on surfaces of the one side adapted to contact the anode. The coating comprises an outer oxygen barrier layer for electrically contacting the anode comprising Ni, a noble metal except Ag or an alloy of one or more of these metals and an electrically conductive metal barrier layer comprising Nb, Ta, Ag or alloys of one or more of these metals between the substrate and the outer layer.
Claims16
An electrical interconnect device for a planar fuel cell comprising solid oxide electrolyte, a cathode and a nickel-containing anode, the interconnect device comprising a chromium-containing substrate having fuel gas-flow channels on one side and an oxidation-resistant coating on surfaces of said one side adapted to contact the anode, wherein the coating comprises an outer oxygen barrier layer for electrically contacting the anode comprising Ni, a noble metal except Ag or an alloy of at least one of these metals and an electrically conductive metal barrier layer comprising Nb, Ta, Ag or alloys of at least one of these metals between the substrate and the outer layer.
Dependencies are inferred from the claim text.