| 摘要 |
An electrode support for fuel cell comprised of a porous body having a Ni phase of Ni or NiO and an inorganic aggregate phase, characterized in that at least one metal (M) for oxidation-reduction swelling inhibition selected from the group consisting of Fe, Co and Mn is solid dissolved in the Ni phase or is unevenly distributed in a grain boundary between the Ni phase and the inorganic aggregate phase. This electrode support minimizes a volume swelling/shrinkage change even in an environment of alternate exposure to a reducing atmosphere and an oxidizing atmosphere. The fuel cell comprising this electrode support and, superimposed thereon, afuel electrode, a solid electrolyte layer and an oxygen electrode realizes effective prevention of cracking, detachment, etc. by, for example, swelling encountered when a reduction/oxidation cycle is repeated by power generation and halting of power generation, thereby strikingly excelling in long-term reliability. |
