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Authors
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Li, X. ; dos Santos, A. R. ; Drache, M. ; Ke, X. ; Gohs, U. ; Turek, T. ; Becker, M. ; Kunz, U. ; Beuermann, S.
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Title
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Polymer electrolyte membranes prepared by pre-irradiation induced graft copolymerization on ETFE for vanadium redox-flow battery applications
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Date
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15.02.2017
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Number
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47907
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Abstract
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The application of grafted membranes based on modified poly(ethylene-alt-tetrafluoroethylene) (ETFE) in redox flow-batteries is reported. In analogy to commercial Nafion® 117 based membranes ETFE backbone material provides chemical, thermal, and mechanical stability. Side chains composed of 2-hydroxyethyl methacrylate (HEMA) and glycidyl methacrylate (GMA) grafted to ETFE were sulfonated to achieve the required proton exchange capacity. Application in a vanadium based redox flow-battery demonstrates the applicability of this kind of membranes for energy storage systems. The degree of grafting was identified as the key parameter to tune the membrane properties.
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Publisher
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Journal of Membrane Science
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Wikidata
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Citation
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Journal of Membrane Science 524 (2017) 419-427
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DOI
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https://doi.org/10.1016/j.memsci.2016.10.053
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Tags
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