Hostname: page-component-cd9895bd7-jkksz Total loading time: 0 Render date: 2024-12-23T12:57:31.661Z Has data issue: false hasContentIssue false
  • English
  • Français

Measurements of VV Precipitation Times and Simulation of the Stability of Catholytes in Vanadium Flow Batteries

Published online by Cambridge University Press:  23 January 2017

Daniela Oboroceanu ,
Nathan Quill ,
Catherine Lenihan ,
Deirdre Ní Eidhin ,
Sergiu P. Albu ,
Robert P. Lynch  and
D. Noel Buckley
Daniela Oboroceanu
Affiliation:
Department of Physics and Energy, Bernal Institute, University of Limerick, Ireland
Nathan Quill
Affiliation:
Department of Physics and Energy, Bernal Institute, University of Limerick, Ireland
Catherine Lenihan
Affiliation:
Department of Physics and Energy, Bernal Institute, University of Limerick, Ireland
Deirdre Ní Eidhin
Affiliation:
Department of Physics and Energy, Bernal Institute, University of Limerick, Ireland
Sergiu P. Albu
Affiliation:
Department of Physics and Energy, Bernal Institute, University of Limerick, Ireland
Robert P. Lynch
Affiliation:
Department of Physics and Energy, Bernal Institute, University of Limerick, Ireland
D. Noel Buckley*
Affiliation:
Department of Physics and Energy, Bernal Institute, University of Limerick, Ireland Department of Chemical Engineering, Case Western Reserve University, Cleveland OH, USA
*
*(Email: [email protected])
Get access

Abstract

The stability of vanadium flow battery (VFB) catholytes was investigated using both lightscattering measurements and visual observation. V2O5 precipitates after an induction time τ which shows an Arrhenius variation with temperature. The value of τ increases with increasing concentration of sulfate and with decreasing concentration of VV but the activation energy remains constant with a value of (1.791±0.020) eV. Plots of ln τ against [S] and [VV] show good linearity and the slopes give values of βS = 2.073 M-1 and βV5 = –3.434 M-1 for the fractional rates of variation of τ with [S] and [VV], respectively. Combining the Arrhenius Equation with the observed log-linear variation of τ with [S] and [VV] provides a model for simulating the stability of catholytes.

Keywords

energy storageVkinetics
Type
Articles
Information
MRS Advances , Volume 2 , Issue 21-22: Energy and Sustainability , 2017 , pp. 1177 - 1182
Copyright
Copyright © Materials Research Society 2017 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Yang, Z., et al., Chem. Rev., 111, 3577 (2011) and references thereinGoogle Scholar
Darling, R. M. et al., Energy Environ. Sci., 7, 3459 (2014) and references thereinGoogle Scholar
Perry, M. L. et al., J. Electrochem. Soc., 163, 1, A5064 (2016) and references thereinGoogle Scholar
Reed, D. et al., J. Electrochem. Soc., 163, 1, A5211 (2016)CrossRefGoogle Scholar
Skyllas-Kazacos, M., et al , J. Electrochem. Soc. 158, R55 (2011)Google Scholar
Watt-Smith, M.J. et al., J. Chem. Technol. Biotechnol. 88, 126 (2013)CrossRefGoogle Scholar
Pezeshki, A. M., et al., J. Electrochem. Soc., 163 (1) A5202 (2016)CrossRefGoogle Scholar
Bourke, A. et al., J. Electrochem. Soc. 163, A5097 (2016)CrossRefGoogle Scholar
Bourke, A. et al., J. Electrochem. Soc. 162, A1547 (2015)Google Scholar
Miller, M. A. et al., J. Electrochem. Soc. 163, A2095 (2016)Google Scholar
Petchsingh, C., et al., J. Electrochem. Soc. 163, A5068 (2016)Google Scholar
Buckley, D. N., et al., J. Electrochem. Soc., 161 A524 (2014)Google Scholar
Roe, S. et al., J. Electrochem. Soc. 163, A5023 (2016) and references thereinGoogle Scholar
Oboroceanu, D. et al., J. Electrochem. Soc. 163, A2919 (2016) and references thereinGoogle Scholar
Li, L. et al. Adv. Energy Mater. 1, 394 (2011) and references thereinCrossRefGoogle Scholar
Vijayakumar, M., et al., J. Power Sources 196, 3669 (2011); 241, 173(2013)Google Scholar
Kim, S. et al., Phys. Chem. Chem. Phys., 13, 18186 (2011)Google Scholar
Zhang, J. et al., J. Appl. Electrochem., 41, 1215 (2011)Google Scholar
Ahmed, S. et al., J. Electrochem. Soc. 154, D103–D112 (2007)CrossRefGoogle Scholar