Abstract
The stability of typical vanadium flow battery (VFB) catholytes with respect to pptn. of V2O5 was investigated at temps. in the range 30-60°C. In all cases a ppt. formed after an induction time, which decreased with increasing temp. and concn. of VV and increased with concn. of sulfate. Arrhenius-type plots are shown for two typical solns. These have excellent linearity and have similar slopes which yield an apparent activation energy of 1.79 eV (172 kJ mol-1). The variation of induction time with temp. for various concns. of VV was simulated, and stability diagrams for additive-free VFB catholytes were generated. [on SciFinder(R)]
Cite
CITATION STYLE
Oboroceanu, D., Quill, N., Lenihan, C., Eidhin, D. N., Albu, S. P., Lynch, R. P., & Buckley, D. N. (2016). Communication—Observation of Arrhenius Behavior of Catholyte Stability in Vanadium Flow Batteries. Journal of The Electrochemical Society, 163(14), A2919–A2921. https://doi.org/10.1149/2.0361614jes
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