Bipolar plate for fuel-cell stack anode and cathode sepn. and contact

摘要

A bipolar plate for the separation and contact of the anode (1) and cathode (2) of adjacent fuel cells (9) arranged in a fuel cell stack (8) is formed by a single integral sheet metal body (400) which has a plurality of first raised regions (410) facing the anode and forming contact surfaces for the anode, and separated from each other by intermediate spaces, and a plurality of second raised regions (420) facing the cathode and forming contact surfaces for the cathode, and separated from each other by intermediate spaces, the intermediate spaces between the first raised regions (410) forming flow paths for the fuel gas (B) flowing on the anode side of the bipolar plate and the intermediate spaces between the second raised regions (420) forming flow paths for the cathode gas (K) flowing on the cathode side of the bipolar plate. <IMAGE>