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US 7,553,573 B2Granted
Solid state electrochemical composite
AssigneeThe Regents of the University of California
InventorsSteven J. Visco, Craig P. Jacobson, Lutgard C. DeJonghe
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Abstract
Provided is a composite electrochemical device fabricated from highly electronically conductive materials such as metals, metal alloys, or electronically conductive ceramics. The electronic conductivity of the electrode substrate is maximized. The invention allows for an electrode with high electronic conductivity and sufficient catalytic activity to achieve high power density in ionic (electrochemical) devices such as fuel cells and electrolytic gas separation systems including oxygen generation system.
Claims14
A composite structure, comprising:
- a porous electronic conductive layer,
- a dense ionic conductive layer,
- a porous ionic conductive layer comprising an electrocatalyst, wherein the porous ionic conductive layer is between and separates the porous electronic conductive layer and the dense ionic conductive layer, and
- an electrode overlying the dense ionic conductive layer, wherein
- the electrocatalyst is in electrical contact with the layer above and below the porous ionic conductive layer.
2 more elements
Dependencies are inferred from the claim text.