FUEL CELL LIMITING THE PHENOMENON OF CORROSION

摘要

The invention concerns a fuel cell comprising: -first and second membrane electrode assemblies (31, 32); - a bipolar metal plate (21) interposed between the first and second membrane electrode assemblies, said bipolar plate comprising first and second metal sheets (41, 42) facing the first and second membrane/electrode assemblies and secured by means of welds (211); -a gaseous diffusion layer (315) interposed and compressed between the first membrane electrode assembly (31) and the bipolar plate (21). The contact pressure of the gaseous diffusion layer (315) with the bipolar plate at the welds is less than its average contact pressure.