Patent ID: 7544434

Claim:
A direct liquid fuel cell power generating device comprising: an electromotive force section unit composed of an anode electrode formed of an anode catalyst layer and an anode substrate, a cathode electrode formed of a cathode catalyst layer and a cathode substrate, and an electrolyte membrane carried in contacting with the anode catalyst layer and the cathode catalyst layer; an anode passage plate forming a fuel passage disposed in contact with the anode substrate; a cathode passage plate forming an oxidizer passage disposed in contact with the cathode substrate; an anode feed port for feeding fuel to one end of the fuel passage, and an anode discharge port disposed at the other end of the fuel passage; a cathode feed port for feeding an oxidizer to one end of the oxidizer passage, and a cathode discharge port disposed at the other end of the oxidizer passage; a fuel container connected to the anode feed port; a cathode recovery container connected to the cathode discharge port for collecting the fuel supplied to the electromotive force section unit, an unreacted matter of the oxidizer, and a product of battery reaction in the electromotive force section; a mechanism connecting the cathode discharge port and the cathode recovery container by piping for achieving gas-liquid contact by making contact between the substance discharged from the cathode discharge port and water existing in the cathode recovery container, in order to dissolve material discharged from the cathode electrode into the water; a mechanism for feeding the aqueous solution collected in the cathode recovery container into the fuel container; a mechanism connecting the fuel container and the cathode recovery container by piping for achieving gas-liquid contact by making contact between the gas discharged from the fuel container and water existing in the cathode recovery container; and a mechanism connecting the anode discharge port to the fuel container such that gas generated in the fuel passage is not vented directly from the fuel passage to the external environment.