Fuel cell stack

Abstract

A fuel cell stack 11 includes a cell laminate 21 composed of a plurality of stacked cells 20, and air is introduced from an anode end part 21 a of the cell laminate 21. The cell laminate 21 has two end cells 24 installed adjacently to a cathode end part 21 b side, thereby providing the cathode end part 21 b with high thermal insulation properties.

What is claimed is: 
     
         1 . A fuel cell stack comprising:
 a cell laminate composed of a plurality of stacked cells,   wherein an oxygen gas is introduced from a gas introduction end part on one side of the cell laminate, and   the cell laminate has relatively higher thermal insulation properties at least at an end part on a far side from the gas introduction end part than at an end part closer thereto.   
     
     
         2 . The fuel cell stack according to  claim 1 , wherein the cell laminate includes a non-power-generating end cell which has thermal insulation properties that are higher than those of other cells and which is located at least at the end part on the far side from the gas introduction end part. 
     
     
         3 . The fuel cell stack according to  claim 1 , wherein the cell laminate has the end cells at both ends thereof, and a greater number of the end cells is provided at the end part on the far side from the gas introduction end part than the number of the end cells provided at the gas introduction end part.