Method for joining bipolar panels, in particular for a fuel cell stack of a vehicle

摘要

The method involves arranging two molded bipolar plates (4a, 4b) with respect to each other in a predetermined joining position (5), and joining the bipolar plates by a condenser- discharge- welding process in a form-fit and material connection manner. The bipolar plates are press-fitted with each other in the joining position before welding. The bipolar plates are pre-loaded with predetermined contact pressure (p) of 20 bar to 30 bar. An independent claim is also included for a tool for implementing a method of joining of two bipolar plates for a fuel cell stack.