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US 2013/0230792 A1Published application
Coatings for Metal Interconnects to Reduce SOFC Degradation
AssigneeBloom Energy Corporation
InventorsJames Wilson, Manoj Pillai, Tad Armstrong
Life of this patent
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Abstract
A method of coating an interconnect for a solid oxide fuel cell includes providing an interconnect including Cr and Fe, and coating an air side of the interconnect with a manganese cobalt oxide spinel coating using a plasma spray process.
Claims37
A method of coating an interconnect for a solid oxide fuel cell, comprising:
- providing an interconnect substrate comprising Cr and Fe;
- and
- coating an air side of the interconnect substrate with a manganese cobalt oxide spinel coating using a plasma spray process.
A coated interconnect for a solid oxide fuel cell, comprising:
- an interconnect substrate comprising at least 70 weight percent chromium;
- and
- a manganese cobalt oxide spinel coating formed over an air side of the interconnect substrate, wherein the spinel comprises a Co:Mn atomic ratio of at least 1:3.
A coated interconnect for a solid oxide fuel cell, comprising:
- an interconnect substrate comprising iron and chromium;
- a manganese cobalt oxide spinel coating formed over an air side of the interconnect substrate;
- a manganese-cobalt-chromium intermediate spinel layer located between the spinel coating and the air side of the interconnect substrate;
- and
- a perovskite layer located over the spinel coating.
2 more elements
A coated interconnect for a solid oxide fuel cell, comprising:
- an interconnect substrate comprising iron and chromium;
- and
- a composite spinel and perovskite coating formed over an air side of the interconnect substrate.
Dependencies are inferred from the claim text.