High-performance ceramic interconnect for SOFC applications

Details High-performance ceramic interconnect for SOFC applications High-performance ceramic interconnect for SOFC applications

1995-02-28

1997-03-25

Lieberman, Paul

Compositions

Electrically conductive or emissive compositions

Metal compound containing

252521, 423593, 429 30, 429 33, 429193, 501123, 501152, A01B 106, A01B 108

Patent

active

056141270

ABSTRACT:
An improved ceramic interconnect component for a solid oxide fuel cell having good electrical conductivity thermodynamic stability in the presence of fuel and a coefficient of thermal expansion matching closely that of zirconia electrolytes is disclosed. The interconnect is a lanthanum strontium chromate material containing minor quantities of calcia, and iron and, optionally, very minor quantities of cobalt, as dopants.

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D. Meadowcroft, "Some Properties of strontium-doped lanthanum chromite", Brit J. Appl. Phys., Ser. 2, vol. 2, pp. 1225-1233 (1969).
Chick et al., "Air-sintering Mechanisms of Chromites", Second International Symposium on Solid Oxide Fuel Cells, pp. 621-628 (1991).

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