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US 12,266,835 B2Granted
SOFC including redox-tolerant anode electrode and method of making the same
AssigneeBloom Energy Corporation
InventorsAndres Leming, Emad El Batawi
Life of this patent
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Abstract
A solid oxide fuel cell (SOFC) includes a solid oxide electrolyte, an anode disposed on a first side of the electrolyte and a cathode disposed on an opposing second side of the electrolyte. The anode includes a ceramic phase and a metallic phase including a Ni catalyst and a dopant including Al, Ba, Ca, Cr, Fe, Mo, Re, Rh, Ru, Sr, W, or any combination thereof.
Claims18
A solid oxide fuel cell (SOFC), comprising:
- a solid oxide electrolyte;
- an anode disposed on a first side of the electrolyte and comprising:
- a ceramic phase;
- and
- a metallic phase comprising an alloy of Ni and a dopant comprising Ba, Ca, Sr, or any combination thereof;
- and
- a cathode disposed on an opposing second side of the electrolyte,
- wherein the metallic phase has an average grain size ranging from about 100 nanometers (nm) to about 400 nm.
5 more elements
A method of forming a solid oxide fuel cell (SOFC), the method comprising:
- dissolving a dopant precursor, a ceramic anode material, and a metal catalyst in a first organic solvent to form a first mixture, the dopant precursor comprising a salt comprising Al, Ba, Ca, Cr, Fe, Mo, Re, Rh, Ru, Sr, W, or any combination thereof;
- drying the first mixture to form a first powder;
- pulverizing the first powder to form a second powder;
- mixing the second powder with a second organic solvent to form an anode ink;
- coating a first side of an electrolyte with the anode ink;
- drying the coated electrolyte;
- and
- sintering the dried electrolyte to form an anode comprising:
- a ceramic phase;
- and
- a metallic phase comprising Ni and a dopant comprising Al, Ba, Ca, Cr, Fe, Mo, Re, Rh, Ru, Sr, W, or any combination thereof.
8 more elements
Dependencies are inferred from the claim text.