Patent ID: 6800388
Filing Date: 2004-10-05
Classification: B01J,C01B,H01M,Y02E,Y02P

Abstract:
A fuel cell comprising:a solid electrolyte substrate; an electrode catalyst adhered onto one surface of the solid electrolyte substrate and having a catalyst composition; an air electrode adhered onto the other surface of the solid electrolyte substrate; and the catalyst composition comprises: a perovskite composite oxide of the type expressed by a rational formula ABO3; the rational formula ABO3 is expressed by a formula Aâ€²1-xAâ€³xBâ€²1-yBâ€³yO3, and the Aâ€² is La or Ce or both of them, the Aâ€³ is at least one element selected from the group consisting of La, Ca, Sm, Ce, Sr, Ba and Pr, the Bâ€² is at least one element selected from the group consisting of Co, Fe, Mn and Gd, and the Bâ€³ is at least one element of noble metals; and the x is set in a range of 0.1