FUEL CELL, MANUFACTURE OF FUEL CELL, COMPOSITE GAS SEPARATOR, AND ITS MANUFACTURE

摘要

PROBLEM TO BE SOLVED: To provide a fuel cell in which the supply and discharge of water content is smooth, and stable and high characteristics are obtained. SOLUTION: Unevenness 34 is provided on a conductive thin plate 32 having a large number of through holes 32h, and an oxidizing agent gas passage 11 and a fuel gas passage 12 are formed by the space formed between the thin plate 32 and unit cells 10. The through holes 32h are sealed by resin 33 which is water permeable and non-gas permeable so that no gas is allowed to pass but water can move. Thereby, excess water content produced on the oxidizing agent electrode side of a fuel cell is supplied to a fuel electrode side where the water content is apt to be insufficient via a separator. Therefore, gas flow is improved on an air side, and the water content is properly supplied to an electrolyte film on the fuel electrode side so that high conductivity can be kept and high characteristics can be maintained.