Patent ID: 6426160
Filing Date: 2002-07-30
Classification: H01M,Y02E

Abstract:
A fuel cell device comprising a plurality of cell units arranged in superposed layers and each comprising:a cell having an anode formed on one surface of an electrolytic member and a cathode formed on the other surface of the electrolytic member, a fuel plate having a fuel chamber formed by a gas channel for passing a fuel gas therethrough, and an oxidizer plate having an oxidizer chamber formed by a gas channel for passing an oxidizer gas therethrough, an oxidizer supply channel for supplying the oxidizer gas to the oxidizer chamber and an oxidizer discharge channel for releasing to the outside air an oxidizer exhaust gas discharged from the oxidizer chamber, the cell being sandwiched between the plates, with the fuel chamber facing the anode of the cell and with the oxidizer chamber facing the cathode thereof, each cell of the fuel cell device being characterized in that the oxidizer discharge channel has a first opening in communication with the oxidizer chamber and a second opening in communication with the outside air, the second opening being smaller than the first opening in width, in order to increase a gas pressure at an outlet end of the oxidizer discharge channel, permitting the oxidizer gas to flow out at a higher speed.