摘要 |
<P>PROBLEM TO BE SOLVED: To increase adhesion between an air electrode and an electrolyte membrane and enhance electrode characteristics of the air electrode in a solid oxide fuel cell using a zirconia family electrolyte as the electrolyte membrane. <P>SOLUTION: A ceria family buffer layer 4 containing a ceria family electrolyte is interposed between an electrolyte substrate 1 which is the electrolyte membrane and the air electrode. The ceria family buffer layer is composed of a baked material of a mixture containing an oxide of a transition metal element of at least one selected from the group comprising Co, Fe, Ni, Cu, and Mn and a ceria family electrolyte material, or a baked material of a mixture containing a perovskite oxide represented by ABO<SB>3</SB>(wherein, A is at least one element selected from the group comprising Sc, Y, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, and Lu; and B is at least one element selected from the group comprising Co, Fe, Ni, Cu, and Mn) and a ceria family electrolyte material. <P>COPYRIGHT: (C)2008,JPO&INPIT |