Patent ID: 6872486

Claim:
A sub-fuel cell comprising: a plurality of unit cells, comprising anode unit cells and cathode unit cells; a proton conducting polymer membrane, the anode unit cells being placed on one side of the membrane and the cathode unit cells being placed on the other side of the membrane opposite the anode unit cells; a polymer film having a thickness sufficient to support electrical leads being placed thereon and having openings for the anode and cathode unit cells and having electrical leads placed thereon, one of the polymer film being placed on each side of the proton conducting polymer membrane and around the anode unit cells and the cathode unit cells to collect electric current from each unit cell; and two feed plates having spaces corresponding to the anode unit cells and the cathode unit cells and interconnecting channels for supplying fuel to the anode unit cells and oxidant to the cathode unit cells, one feed plate being placed on the side of the polymer film having the anode unit cells and one feed plate being placed on the side of the polymer film having the cathode unit cells.