AEM water electrolysis

Water electrolysis is the key technology to produce green hydrogen using electrical energy from renewable sources. Established water electrolyzer technologies use highly alkaline electrolytes (liquid alkaline, AEL) or proton-exchange membranes, which rely on Iridium as an expensive an scarce raw material catalyst  (PEMWE). By using an anion-exchange membrane (AEM) a lower concentration alkaline solution can be used while achieving current densities similar to PEMWE using abundant and cheap catalysts (non-PGM, platinum group metal).

The AEM water electrolysis team focuses on the development of novel membrane-electrode assemblies (MEAs) to address the remaining challenges for this you and rapidly growing technology. Engineers, physicists and chemists work together to optimize the individual layers of the MEA to reduce degradation and gas crossover and remove critical raw materials.