BIPOLAR PLATE AND FUEL CELL STACK

A bipolar plate formed with a reactant flow field on each of its plate surfaces facing away from each other, comprises multiple flow ducts for a reaction medium, bounded by walls of webs, wherein the respective reactant flow field is connected fluidically to a media port across a distribution region situated outside an active region, wherein at least one duct of the distribution field is provided with a flow divider to divide up a flowing reaction medium before it is introduced into the active region. The duct comprising the flow divider has a duct elevation, comprising an ascent, which is present at a given distance upstream from the flow divider. A fuel cell stack having a plurality of such bipolar plates is also provided.