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AssigneeFuelCell Energy, Inc.
InventorsDebabrata Ghosh, Michael Pastula, Dennis Prediger, Martin Perry, Arpad Horvath, Jim Lumsden
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A solid oxide fuel cell stack incorporates metallic interconnects each of which includes a fuel intake manifold, a fuel exhaust manifold, an oxidant intake manifold and an oxidant exhaust manifold. The fuel side of the interconnect defines a fuel flow field surrounded by a continuous sealing surface and in fluid communication with the fuel intake and exhaust manifold. The oxidant side of the interconnect defines an oxidant flow field surrounded by a continuous sealing surface and in fluid communication with the oxidant intake and exhaust manifolds. The interconnect may be fabricated by brazing together three stainless steel plates having overlapping openings to permit the exclusionary flow of fuel and oxidant through the interconnect.
A interconnect plate comprising a fuel intake manifold, a fuel exhaust manifold, an oxidant intake manifold, and an oxidant exhaust manifold, said interconnect plate comprising a lamination of three layers, wherein:
The interconnect plate of claim 1 where the oxidant gas plate defines a plurality of elongated linear oxidant flow fields.
The interconnect plate of claim 4 wherein the metal is a stainless steel.
The interconnect plate of claim 8, where the plating is about 5 to about 10 μm thick.
A planar interconnect plate having two major surfaces and four minor surfaces, and defining a fuel intake manifold, a fuel exhaust manifold, an oxidant intake manifold, and an oxidant exhaust manifold, wherein the four minor surfaces are each within a manifold, said interconnect plate comprising:
Dependencies are inferred from the claim text.