Solid oxide fuel cells with symmetric composite electrodes
AssigneeCorning Incorporated
InventorsMichael E. Badding, Jacqueline L. Brown, Thomas D. Ketcham, Dell J. St. Julien
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Abstract
The present invention relates to electrode/electrolyte assemblies for solid oxide fuel cells (SOFCs) comprising a thin electrolyte sheet interposed between opposite electrodes, and wherein the positive air electrode (cathode) and negative fuel electrode (anode) are composed of similar electronically conductive metal phases and stabilizing ceramic phases, and wherein the anode exhibits both good oxidation resistance and good catalytic activity toward fuel oxidation.
Claims18
An electrode/electrolyte assembly comprising:
- a ceramic electrolyte sheet;
- a positive air electrode disposed on a first surface of the sheet;
- and
- a negative fuel electrode disposed opposite the air electrode on a second surface of the sheet;
- wherein both the positive and negative electrodes comprise a conductive metal phase and a ceramic phase.
A solid oxide fuel cell incorporating an electrode/electrolyte assembly comprising:
- a ceramic electrolyte sheet;
- a positive air electrode disposed on a first surface of the sheet;
- and
- a negative fuel electrode disposed opposite the air electrode on a second surface of the sheet;
- wherein both the positive and negative electrodes comprise a conductive metal phase and a ceramic phase.
Dependencies are inferred from the claim text.