Species Uptake and Mass Transport in Membranes for Vanadium Redox Flow Batteries

In this contribution, we provide a synthesis of results to date describing uptake and mass transport of water, vanadium species and protons in Nafion membranes for use as separators in VRFBs. Resistance issues as well as species cross-over are important contributors to performance loss in VRFBs. Aft...

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Published inElectrochimica acta Vol. 237; no. C; pp. 1 - 11
Main Authors Elgammal, Ramez A., Tang, Zhijiang, Sun, Che-Nan, Lawton, Jamie, Zawodzinski, Thomas A.
Format Journal Article
LanguageEnglish
Published Oxford Elsevier Ltd 20.05.2017
Elsevier BV
Elsevier
Subjects
Electrolytes
Mass transport
Membranes
Protons
Rechargeable batteries
Separators
Vanadium
Water
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Summary:In this contribution, we provide a synthesis of results to date describing uptake and mass transport of water, vanadium species and protons in Nafion membranes for use as separators in VRFBs. Resistance issues as well as species cross-over are important contributors to performance loss in VRFBs. After a brief discussion of our state-of-the-art cell performance, we consider the uptake and transport of various species through a number of membrane materials. We draw together numerous previous studies and augment them with new data to provide a summary of our present state of understanding of the experimental facts regarding membrane behavior.
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USDOE Office of Electricity (OE)
ISSN:0013-4686
1873-3859
DOI:10.1016/j.electacta.2017.03.131