| 摘要 |
PURPOSE:To reduce a temperature distribution difference between cells by providing an insulation layer at least on a lower plate, regarding plates positioned at the upper and lower ends of a cell stack body. CONSTITUTION:The lower end of a cell stack body 6 in a stacking direction is provided with a bottom plate 8 forming a part of an anode exhaust gas buffer layer 7 for temporarily accumulating anode exhaust gas from the body 6 before the release thereof to the outside of a fuel cell. Also, a gas connector plate 10 is laid under the bottom plate 8 in such state as forming the anode gas buffer layer 7 together with the plate 8 as well as having external piping 9 for releasing anode exhaust gas from the buffer layer 7 to the outside of the fuel cell. An insulation layer 13 made of a vacuum layer 11 and an air layer 12 is formed on the connector plate 10 for preventing radiation toward the lower side of the cell stack body. According to this construction, heat conduction from the end of the cell stack body to a lower stack is hindered, and a temperature drop hardly occurs under the stack body. |
