Aquivion (PFSA : Perfluorosulfonic Acid)

   Membrane-Electrode-Assembly (MEA) producers specify PFSA as membranes and dispersions – both vital for powerful Polymer Electrolyte Fuel Cell (PEFC) stacks.

Key features:
•    Very high concentration of functional groups for strong proton (or Na+, K+) conductivity
•    High softening point for high-temperature operation well above 80°C
•    Strong water retention, e.g. for a better low-humidity fuel cell operation
•    Material stability for stable and extended operation - also above 100°C and below 50% rH
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