Solid electrolyte structure and method for forming
AssigneeMassachusetts Institute of Technology
InventorsMichael S. Hsu, Charles F. Wilson
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Abstract
Solid oxide electrolyte structures, e.g., flat plates, suitable for use in an electrochemical energy converter are prepared by a plasma deposition technique. This process is comprised of forming a suspension of the oxide powders, passing the suspension through an arc discharge to melt the oxide particles and depositing the molten particles on a substrate. The deposited layer is allowed to cool and then is removed intact from the substrate. The plate then can be sintered and a fuel electrode material and an oxidizer electrode material can be applied on the opposing surfaces of the plate.
Claims5
The process for forming a solid-oxide electrolyte plate which comprises suspending powders of said oxide in a working gas, passing the suspension through an arc discharged to melt said particles and depositing said molten particle on a flat substrate, allowing said particles to cool and form a solid layer and removing said solid layer from said substrate, sintering said removed solid at a temperature between about 1400.degree. C. and 1600.degree. C., depositing a fuel electrode material on one surface of the sintered solid by flame deposition and depositing an oxidized electrode material on a second surface of the sintered solid, the degree of roughness of the surface of said flat substrate are irregularities between about 0.000032-0.000064 inches in size.
Dependencies are inferred from the claim text.