Bipolar plate and method for their preparation and a bipolar plate-containing electrochemical system

摘要

The present invention relates to a bipolar plate (1) for electrochemical systems which contains a first plate (2) with a first flow field (2a) for media distribution and a second plate (3) with a second flow field (3a) for media distribution. In the region of the first flow field, the first plate has, at least in regions, a planar surface section (4), from which protruding discrete and spaced-apart elevations (5) are distributed. In addition, a method for producing this bipolar plate is presented as well as an electrochemical system containing this bipolar plate. DOLLAR A According to the invention, it is possible to produce a bipolar plate in a cost effective manner, which allows the construction of reliable and low peripheral consumption (pumps, compressors) working fuel cell systems.