STACK STRUCTURE OF FUEL CELL USING B COMPOUND AS FUEL

摘要

PURPOSE: A stack structure of a fuel cell using a B compound as fuel is provided, to reduce the loss of pressure of stack due to hydrogen gas by allowing hydrogen gas to be separated at a vapor-liquid separator when fuel moves from cell to cell. CONSTITUTION: The fuel cell supplies the B compound stored in a fuel tank to the anode(12) of stack, supplies the air to the cathode(13) of stack, and obtains the electromotive force from the chemical reaction of the B compound and the air, wherein the stack(10) comprises a plurality of layered cells. A fuel transport line(100) is placed between the layered cells and has a vapor-liquid separator(101) for removing the hydrogen gas contained in the fuel moving between the cells. Preferably the vapor-liquid separator(101) comprises a space inside; an inflow hole at one side; an outflow hole at the other side; and a discharge pipe for discharging hydrogen gas at the upper part. Preferably the B compound is BH4- in aqueous solution state.