| 摘要 |
PROBLEM TO BE SOLVED: To provide an electrode structure of a solid oxide fuel battery which makes possible to suppress the reduction of a reaction area of an electrode owing to the agglomeration of electrode particles, and to suppress the decline of interface adhesion owing to the mismatch in thermal expansion between an electrode and an electrolyte.SOLUTION: An electrode comprises: microparticles A1 made of a material A serving as an electrode catalyst; microparticles B1 made of a material B including an ion conductivity; ultra-fine particles A2 made of the material A and having particle diameters smaller than those of the microparticles A1; ultra-fine particles B2 made of the material B, and having particle diameters smaller than those of the microparticles B1. In the electrode, aggregates C of the ultra-fine particles A2 and B2 are located in the vicinity of contact interfaces of the microparticles A1 and B1. |
