Patent ID: 6969565

Claim:
A solid oxide fuel cell stack, comprising: (1) a first cell plate provided with: a substrate having a plurality of opening portions; a groove formed in a lower surface of the substrate, the groove extending through the plurality of opening portions; a solid electrolyte layer formed on an upper surface of the substrate; a fuel electrode layer formed on the solid electrolyte layer; and an air electrode layer formed on the lower surface of the substrate, the air electrode layer having a shape in conformity with those of the plurality of opening portions and the groove of the substrate, and (2) a second cell plate provided with: a substrate having a plurality of opening portions; a groove formed in a lower surface of the substrate, the groove extending through the plurality of opening portions; a solid electrolyte layer formed on an upper surface of the substrate; an air electrode layer formed on the solid electrolyte layer; and a fuel electrode layer formed on the lower surface of the substrate, the fuel electrode having a shape in conformity with those of the plurality of opening portions and the groove of the substrate, and (3) wherein the first cell plate and second cell plate are stacked in such a manner that either of a pair of the air electrode layer of the first cell plate and the air electrode layer of the second cell plate or that of the fuel electrode layer of the first cell plate and the fuel electrode layer of the second cell plate face each other.