Polymer Electrolyte Fuel Cell

Abstract

Perfluorosulfonic acid (PFSA) polymers have been extensively used for Polymer Electrolyte Fuel Cells (PEFCs) because it is generally said that they have considerably higher chemical stability over hydrocarbon-based polymers. However, PFSA polymers can be degraded under severe operating conditions such as high temperatures or low humidity conditions.
Degradation mechanism of PFSA polymers during fuel cell operation and the performance of the newly developed MEAs are presented.