| US 7,563,533 B2 | ||
| Ba-Sr-Co-Fe-O based perovskite mixed conducting materials as cathode materials for solid oxide fuel cells | ||
| Sossina M. Haile, Altadena, Calif. (US); and Zongping Shao, Pasadena, Calif. (US) | ||
| Assigned to California Institute of Technology, Pasadena, Calif. (US) | ||
| Filed on Jun. 04, 2004, as Appl. No. 10/861,828. | ||
| Claims priority of provisional application 60/476413, filed on Jun. 05, 2003. | ||
| Prior Publication US 2005/0026006 A1, Feb. 03, 2005 | ||
| Int. Cl. H01M 4/90 (2006.01) | ||
| U.S. Cl. 429—40 [429/41] | 3 Claims |
| 1. A solid oxide fuel cell comprising:
a cathode comprising a compound of the general form Ba0.5Sr0.5Co0.8Fe0.2O3-δ having a perovskite crystal structure, wherein δ is less than or equal to 1;
an anode; and
an electrolyte.
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