Thin film solid oxide fuel cell and method for forming
First Claim
1. A solid oxide fuel cell, comprising:
- an anode film, the anode film being a metal foil having a first and second side, wherein the second side of the metal foil has an atomically ordered surface, the metal foil being made porous from a plurality of holes entering from the first side of the foil and extending to the second side;
an electrolyte film having a first and second side and plane, the first side of the electrolyte film being deposited on the second side of the metal foil; and
a cathode film, the cathode film being deposited on the second side of the electrolyte film.
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Accused Products
Abstract
A thin film solid oxide fuel cell (TFSOFC) having a porous metallic anode and a porous cathode is provided. The fuel cell is formed by using a continuous metal foil as a substrate to epitaxially deposit a thin film electrolyte on one surface of the foil. The metal foil may then be made porous by photolithographically patterning and etching the other surface of the foil to form holes extending through the foil to the electrolyte/foil interface. The cathode is then formed on the electrolyte by depositing a second thin film using known film deposition techniques. Further processing may be used to increase the porosity of the electrodes. The metal foil may be treated before film deposition to have an atomically ordered surface, which makes possible an atomically ordered thin film electrolyte.
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Citations
9 Claims
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1. A solid oxide fuel cell, comprising:
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an anode film, the anode film being a metal foil having a first and second side, wherein the second side of the metal foil has an atomically ordered surface, the metal foil being made porous from a plurality of holes entering from the first side of the foil and extending to the second side;
an electrolyte film having a first and second side and plane, the first side of the electrolyte film being deposited on the second side of the metal foil; and
a cathode film, the cathode film being deposited on the second side of the electrolyte film. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification