Patent ID: 6503650
Filing Date: 2003-01-07
Classification: H01M,Y02E

Abstract:
A fuel cell system comprising:(A) a cell multilayer element that is formed by stacking unit cell structures in layers, a unit cell structure including: a cell that includes a cathode, an anode, and electrolyte sandwiched between the cathode and the anode an oxidant channel unit with a plurality of oxidant channels that cross the cathode and enable oxidant to be supplied to the cathode; and a fuel channel unit with a plurality of fuel channels that cross the anode and enable fuel to be supplied to the anode; (B) oxidant supplying means for supplying the oxidant to the oxidant channels; and (C) fuel supplying means for supplying the fuel to the fuel channels, wherein the oxidant supplying means includes first switching means for reversing a flow direction of the oxidant in at least one, but not all of the oxidant channels and/or the fuel supplying means includes second switching means for reversing a flow direction of the fuel in at least one, but not all of the fuel channels.