Solid oxide reversible fuel cell with improved electrode composition
AssigneeBloom Energy Corporation
InventorsDarren Hickey, Mark Cassidy
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Abstract
A solid oxide electrolyzer cell or a solid oxide reversible fuel cell includes a solid oxide electrolyte. It may also include at least one of a first gadolinia doped ceria interfacial layer in contact with a first side of the electrolyte and a second gadolinia doped ceria interfacial layer in contact with a second side of the electrolyte. It may also include a fuel electrode including a cermet containing nickel and one or both of a doped zirconia and gadolinia doped ceria. It may also include an oxidant electrode including an LSM and one or both of a doped zirconia and gadolinia doped ceria.
Claims7
A solid oxide fuel cell comprising:
- a solid oxide electrolyte;
- an oxidant electrode;
- a fuel electrode comprising a cermet comprising nickel and at least one of doped ceria or doped zirconia;
- and
- a doped ceria interfacial layer located between the solid oxide electrolyte and the fuel electrode, wherein the interfacial layer is not a part of the solid oxide electrolyte;
- and
- wherein a content of the doped ceria in the fuel electrode is lower than a content of the doped ceria in the interfacial layer.
Dependencies are inferred from the claim text.