Enhanced power density of a solid oxide fuel cell with a highly dispersed Ni-YSZ anode

Abstract: Search for the anode materials having a low polarization resistance has been extensively conducted for high- performance solid oxide fuel cells (SOFCs). In this study, a highly dispersed NiO-YSZ composite, a typical anode material of SOFCs, was synthesized by using ultrasonic spray pyrolysis (USP). The power density of the zirconia electrolyte- supported SOFC with the synthesized anode was ~391mW/cm2 at 900oC. On the other hand, the power density of the SOFC with a common NiO-YSZ anode was 315mW/cm2. The improvement was 24％. This result demonstrates that the synthesized NiO-YSZ is a potential alternative to an anode material for the SOFCs fabricated with the zirconia solid electrolyte.