Inhomogeneous Degradation of Polymer Electrolyte Membrane in PEM Fuel Cells

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ECS Meeting Abstracts, Issue: 828

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Huang, Xinyu; Yoon, Wonseok
Membrane durability; Polymer electrolyte membrane (PEM) fuel cells; Membrane embrittlement; PFSA based electrolyte membranes; Chemical Engineering; Energy Systems; Engineering; Mechanical Engineering; Membrane Science; Polymer Science
article description
Membrane durability is one of the technical barriers for the commercialization of polymer electrolyte membrane (PEM) fuel cells. Membrane embrittlement (a form of mechanical weakening) can lead to the frequently observed “sudden death” behavior of PEM fuel cells. It is the objective of this study to explore the fundamental mechanisms of the mechanical weakening of perfluorosulfonic acid (PFSA) based electrolyte membranes during the accelerated degradation test.