Plate-type middle-temp solid oxide fuel battery stack module

This invention provides a flat plate type moderate temp. solid oxide fuel cell piled module composed of upper cover, single cell plates, connecting plates and bottom plate arranged in a stacked mode and having fuel gas and oxidized gas channels and inlet and outlet inside. Tanks for sealed materials are set up on the said cover, connecting plate and bottom plate, which have sectional shapes of the same 2n(n is greater than or equal to 2 natural number) polygon, whose corners extend to become long corner with fixing holes, and heating thermo-insulating plates are mounted on the upper and lowersurfaces of polygon stacked planes and the upper cover and bottom plate. The connecting plates are made of ferritic stainless steel.