The invention relates to a bipolar plate, for fuel cells, including a
layer of a hydrophobic material which is soluble in a solvent, on the
surfaces thereof. Water forms small droplets on the surfaces of the
bipolar plate due to said layer, which are loosely held on the surface of
the bipolar plate and which can be reliably removed from the fuel cell
even with low flow speeds for the operating gases. The thickness of the
layer and thus the hydrophobicity thereof and the electrical contact
resistance between the bipolar plate and a contacting electrode may be
adjusted in a simple manner, by varying the concentration of the
hydrophobic material in the solvent.