Abstract
Water management is one of the most critical parameters in the production of high performance membrane electrode assemblies for anion exchange membrane fuel cells. In this work, we have systematically studied the influence of the feed gas flow rate, hydrophobic vs hydrophilic gas diffusion layers, the presence of a microporous layer, and humidifier temperature on cell performance. Work was performed using both on standardized Tokuyama products as well as quaternary-ammonium radiation-grafted alkaline anion-exchange membranes and ionomers synthesized by our team.