Ce0.9Gd0.1O2-x (CGO) layers were deposited onto nonconductive porous NiO-CGO supports by electrophoretic infiltration, and then compacted by isostatic pressing to achieve a high packing density of the deposited layer. The bilayers were sintered to give dense CGO layers at 1290 degrees C in air. A fuel cell comprising an La0.6Sr0.4Co0.2Fe0.8O3-x cathode, a 10-mu m CGO electrolyte, and a Ni-CGO anode was tested at 550 degrees C with humidified 10% H-2 and air. The cell showed an open circuit voltage 2 of 0.86 V and delivered a steady current of about 470 mA/cm(2) at a terminal voltage of 0.24 V.