FUEL CELL STACK WITH FRAME ELEMENTS

摘要

The invention relates to a fuel stack that is composed of a stack of membrane-electrode units arranged with their flat sides one behind the other and separated one from the other by a bipolar plate. One simple pole flange each is provided as the final plate before the first and behind the last membrane-electrode unit. Distributing and collecting channels for the supply of the fuel cell with fuel, oxidant and coolant as well as for the discharge thereof run through the stack of membrane-electrode units, bipolar plates and final plates. Said distributing and collecting channels are disposed in respective plastic frames which enclose the individual membrane-electrode units, the bipolar plates and the final plates. Said plastic frames are firmly interlinked by welding or gluing. The invention allows for an especially inexpensive production of the fuel cell.