| 摘要 |
PURPOSE: A fuel supply structure for the stack of a fuel cell is provided, to allow the fuel to flow from downside to upside along a fuel channel groove and to allow the fuel to be distributed uniformly into the each channel groove. CONSTITUTION: The fuel cell supplies the fuel stored in a fuel tank to the fuel electrode of stack, supplies air to the air electrode of stack and obtains the electromotive force by the electrochemical reaction of the fuel and air, wherein the stack(100) comprises a layered body(101) comprising layered cells of a bipolar plate adhered to both sides of a membrane-electrode assembly, a fuel supply manifold(102) and an air withdrawal manifold(103) installed at the lower part of the layered body, and a fuel withdrawal manifold(104) and an air supply manifold(105) installed at the upper part of the layered body; a buffer part(120) for the distribution of fuel and the discharge of hydrogen is formed at the upper and lower parts of the fuel channel groove(110) formed at the bipolar plate; the interval of fuel channel grooves gradually increases from the center part to the outer part. |
