2013 年 34 巻 12 号 p. 656-661
For improving the performance and durability of fuel cell materials, it is essential to elucidate the multi-physics phenomena such as mechanical property and degradation phenomena, which are complicated combination of chemical reactions and various physical processes. In this review, we introduce our successful clarification of the multi-physics phenomena in various fuel cells. In the polymer electrolyte fuel cell, we revealed chemical reaction dynamics of OH and H radicals, which leads to degradation of the electrolyte material. In the solid oxide fuel cell (SOFC), we found that chemical reactions of H2O advance the fracture and crack growth in the CeO2 electrolyte. We also established the multinanoparticle simulation method and it was successfully applied to the sintering process of Ni nano-particles in the porous Ni/YSZ anode of the SOFC.