Composite electrode/electrolyte structure

Patent · Mon Jan 26 23:00:00 EST 2004

OSTI ID:1007485

Visco, Steven J ^[1]; Jacobson, Craig P ^[2]; DeJonghe, Lutgard C ^[3]

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1. Berkeley, CA
2. El Cerrito, CA
3. Lafayette, CA

Provided is an electrode fabricated from highly electronically conductive materials such as metals, metal alloys, or electronically conductive ceramics. The electronic conductivity of the electrode substrate is maximized. Onto this electrode in the green state, a green ionic (e.g., electrolyte) film is deposited and the assembly is co-fired at a temperature suitable to fully densify the film while the substrate retains porosity. Subsequently, a catalytic material is added to the electrode structure by infiltration of a metal salt and subsequent low temperature firing. 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.

• Research Organization: University of California (Oakland, CA)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC03-76SF00098
• Assignee: The Regents of the University of California (Oakland, CA)
• Patent Number(s): 6,682,842
• Application Number: 09/626,022
• OSTI ID: 1007485
• Country of Publication: United States
• Language: English