Solid electrolyte fuel cell stack

A solid electrolyte fuel cell stack comprising:

• solid electrolyte fuel cells stack-layered therein, each of the solid electrolyte fuel cells including a cell body and a frame portion that encloses the cell body in a planar direction of the cell body, the cell body comprising a solid electrolyte having a fuel electrode, which contacts with fuel gas, and an air electrode, which contacts with oxidant gas;
• and
• interconnectors disposed between the respective solid electrolyte fuel cells to separate a gas flow between the solid electrolyte fuel cells and secure electric conduction between the solid electrolyte fuel cells,
• wherein vents for supplying the oxidant gas are provided in the frame portions of the solid electrolyte fuel cells in such a manner that the vents for supplying the oxidant gas penetrate a part or a whole of the solid electrolyte fuel cell stack in a stack-layering direction of the stack,
• wherein different vents for supplying the oxidant gas communicate with the different solid electrolyte fuel cells, through holes forming respective different vents for supplying the oxidant gas;
• wherein bolts are inserted through the through holes to press each of the solid electrolyte fuel cells which are stacked, in a stack-layering direction, so that the solid electrolyte fuel cells can be restrained in one body, and
• at least two of the vents for supplying the oxidant gas pass through more than one of the interconnectors in the stack-layering direction but do not communicate with each cell body.