We are developing anode-supported solid oxide fuel cells (SOFCs) using LaNi(Fe)O3 (LNF) and Al2O3 doped ScSZ (SASZ) for the cathode and electrolyte, respectively. Anode-supported SOFCs were fabricated using two types NiO powder with different sinterbility to control the anode performance. The cells with an anode made from fine NiO powder show high-power performance, while those made from coarse NiO powder show good gas diffusion characteristics. Combining the merits of these anodes, we successfully fabricated a cell that exhibits high- power-generation characteristics and smooth gas diffusion through the anode substrate at the same time. Moreover, by controlling the anode construction, we were able to keep the warpage in the cells below 0.3 mm even for large cells (~ 100 mmφ) and thereby improve the performance of a single-cell stacks.