Solid electrolyte fuel battery having anode and cathode gas supply channels with different cross-section areas

A solid electrolyte fuel battery comprising:

• a battery structure part including a plurality of cells, each cell including an anode layer, a solid electrolyte layer and a cathode layer;
• an intercellular separation part disposed between adjacent cells of the plurality of cells and formed of a material containing a ceramic;
• and
• a gas supply channel structure part having an anode gas supply channel for supplying an anode gas to each of the plurality of cells and a cathode gas supply channel for supplying a cathode gas to each of the plurality of cells,
• wherein the anode gas supply channel includes a first anode gas supply channel part, at least a part of an inner wall surface of which is the anode layer, and a second anode gas supply channel part;
• the cathode gas supply channel includes a first cathode gas supply channel part, at least a part of an inner wall surface of which is the cathode layer, and a second cathode gas supply channel part, and
• a first cross-section area of the first anode gas supply channel part is larger than a second cross-section area of at least a portion of the second anode gas supply channel part and a third cross-section area of the first cathode gas supply channel part is larger than a fourth cross-section area of at least a portion of the second cathode gas supply channel part.