Bipolar plate of compound construction, especially for fuel cell stack, has three separate base plates, the central plate being a metal core layer associated with corrosion-resistant outer plate on either side

摘要

The bipolar plate has three separate base plates (1,2), where the central base plate (1) is configured as a metal core layer associated with an outer base plate (2) on either side made of a corrosion-resistant material. The central plate has spot welds (4) and can be primed (5) on both sides. The outer plates can be attached to the central plate by a sinter technique.