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A novel ionic-conductive skeletal structure was developed for an electrode-supported solid oxide fuel cell (SOFC). The skeletal structure was formed as an ionic-conductive frame that accumulated two thick porous layers and one dense thin layer. Two types of green sheets were used to form the frame. Thin green sheets (thickness: 15–30 μm) for the dense layers were fabricated with a well-dispersed Gd0.2Ce0.8O x (GDC) slurry and thick sheets (thickness: 150–300 μm) were fabricated with a GDC/pore-former slurry by the tape casting method. Sintering laminated sheets at 1450°C for 8 h in air resulted in an ionic-conductive frame that was suitable for electrode-supported SOFC. The relative density of the inner thin layer, which works as an electrolyte, was higher than 98%, and the outer thick layers remained porous after the sintering. The porous structure of the outer layers was controlled using agglomerated slurries instead of well-dispersed slurries. Electrochemical measurements of the ionic-conductive frame attached with platinum electrodes exhibited potential as high-performance cells. [ABSTRACT FROM AUTHOR]