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Measurement and computer simulation of catholyte stability in vanadium flow batteries (VFBs)

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Show simple item record Buckley, Noel Oboroceanu, Daniela Quill, Nathan Lenihan, Catherine Ní Eidhin, Deirdre Albu, Sergiu P. Lynch, Robert P. 2018-11-16T12:03:28Z 2018-11-16T12:03:28Z 2018
dc.description peer-reviewed en_US
dc.description.abstract Based on careful experimental measurements, a model for the stability of vanadium flow battery (VFB) catholytes was developed which quantifies their precipitation behavior as a function of temperature and composition. The model enables simulation of the induction time for precipitation at a temperature T for any catholyte with concentrations of sulfate and VV within the range of applicability. The results of such simulations are in good agreement with experiment. The model can predict catholyte stability using any of three alternative metrics: the induction time τ, the relative stability parameter ρ and the stability temperature TW. The induction time is a good measure of overall stability; the relative stability parameter compares the stability of any catholyte to a standard in a temperature-independent manner; and the stability temperature estimates the upper temperature limit at which a catholyte is stable for practical purposes. Equations are derived for these parameters and the behavior of each parameter is simulated and plotted under a variety of conditions. Likewise, the effect of state of charge is simulated and plotted. The plots and the associated equations provide detailed stability data that can be useful in the design of practical flow batteries. en_US
dc.language.iso eng en_US
dc.publisher Electrochemical Society en_US
dc.relation ERDF en_US
dc.relation.ispartofseries Journal of The Electrochemical Society;165 (14) A3263-A3274
dc.subject vanadium flow battery (VFB) en_US
dc.subject computer simulation en_US
dc.title Measurement and computer simulation of catholyte stability in vanadium flow batteries (VFBs) en_US
dc.type info:eu-repo/semantics/article en_US
dc.type.supercollection all_ul_research en_US
dc.type.supercollection ul_published_reviewed en_US
dc.identifier.doi 10.1149/2.0091814jes
dc.contributor.sponsor EI en_US
dc.contributor.sponsor ERC en_US
dc.relation.projectid CF 20133303 en_US
dc.relation.projectid ERDF en_US
dc.rights.accessrights info:eu-repo/semantics/openAccess en_US

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