Highly active Ni-cermet anodes for thin La 0.9 Sr 0.1 Ga 0.8 Sr 0.2 O 3-δ (LSGM) electrolyte solid oxide fuel cells are fabricated by impregnating aqueous nickel nitrate solutions into porous LSGM backbones, followed by calcinations at 700 °C. High Ni loadings, e.g., V Ni = 7.9%, are mandatory for obtaining well-interconnected Ni coatings on the internal surfaces of the supporting LSGM structures, where good chemical compatibility is confirmed by the X-Ray diffraction patterns. The polarization resistances are impressively low for the V Ni = 7.9% anodes in humidified hydrogen, ranging from 0.008 Ω cm 2 at 650 °C to 0.011 Ω cm 2 at 550 °C. Thin LSGM electrolyte fuel cells, impregnated with Ni anodes and Sm 0.5 Sr 0.5 CoO 3−δ –Ce 0.8 Sm 0.2 O 1.9 (SSC – SDC) cathodes, exhibit superior power densities at reduced temperatures, e.g., 1.60 and 1.05 W cm −2 at 650 and 550 °C, respectively.