Cobalt doped lanthanum chromite material suitable for high temperature use
A high temperature, solid electrolyte electrochemical cell, subject to thermal cycling temperatures of between about 25 C and about 1,200 C, capable of electronic interconnection to at least one other electrochemical cell and capable of operating in an environment containing oxygen and a fuel, is made; where the cell has a first and second electrode with solid electrolyte between them, where an improved interconnect material is applied along a portion of a supporting electrode; where the interconnect is made of a chemically modified lanthanum chromite, containing cobalt as the important additive, which interconnect allows for adjustment of the thermal expansion of the interconnect material to more nearly match that of other cell components, such as zirconia electrolyte, and is stable in oxygen containing atmospheres such as air and in fuel environments. 2 figs.
- DOE Contract Number:
- AC02-80ET17089
- Assignee:
- Westinghouse Electric Corp., Pittsburgh, PA (United States)
- Patent Number(s):
- US 4631238; A
- Application Number:
- PPN: US 6-692813
- OSTI ID:
- 7153018
- Resource Relation:
- Patent File Date: 18 Jan 1985
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
SOLID ELECTROLYTE FUEL CELLS
DESIGN
MATERIALS
CHROMIUM OXIDES
LANTHANUM COMPOUNDS
ZIRCONIUM OXIDES
CHALCOGENIDES
CHROMIUM COMPOUNDS
DIRECT ENERGY CONVERTERS
ELECTROCHEMICAL CELLS
FUEL CELLS
OXIDES
OXYGEN COMPOUNDS
RARE EARTH COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
ZIRCONIUM COMPOUNDS
300501* - Fuel Cells- Design & Development
300503 - Fuel Cells- Materials
Components
& Auxiliaries