Performance of Polymer Electrolyte Membrane Fuel Cell Based on New Polymeric Ionomers

In this paper, novel polymer electrolyte membranes (PEMs) based on new sulfonated polyimides have been prepared. These polymers have structure of rigid aromatic polymer backbone and flexible aliphatic side chain terminated with sulfonic acid group. Membrane properties such as proton conductivity and single fuel cell performance are evaluated. Most of the polymeric ionomers showed high potential for application to PEM fuel cells.