Pore-filling polymer electrolyte membrane based on poly (arylene ether ketone) for enhanced dimensional stability and reduced methanol permeability

Filling porous PAEK membranes with SPAEK electrolyte is newly developed to enhance the performance of direct methanol fuel cells. From experimental observations, the pore filling membranes show not only a lower methanol permeability and better selectivity than those of pristine SPAEK and Nafion 117 membranes, but also superior thermal and dimensional stabilities.281