Hostname: page-component-76fb5796d-r6qrq Total loading time: 0 Render date: 2024-04-25T10:33:00.742Z Has data issue: false hasContentIssue false
  • English
  • Français

Influence of Pretreatment on Kinetics at Carbon Electrodes and Consequences for Flow Battery Performance

Published online by Cambridge University Press:  13 February 2017

D. N. Buckley ,
A. Bourke ,
R. P. Lynch ,
N. Quill ,
M. A. Miller ,
J. S. Wainright  and
R. F. Savinell
D. N. Buckley*
Affiliation:
Department of Physics and Energy, Bernal Institute, University of Limerick, Ireland Department of Chemical Engineering, Case Western Reserve University, Cleveland OH, USA
A. Bourke
Affiliation:
School of Engineering, Waterford Institute of Technology, Ireland
R. P. Lynch
Affiliation:
Department of Physics and Energy, Bernal Institute, University of Limerick, Ireland
N. Quill
Affiliation:
Department of Physics and Energy, Bernal Institute, University of Limerick, Ireland
M. A. Miller
Affiliation:
Department of Chemical Engineering, Case Western Reserve University, Cleveland OH, USA
J. S. Wainright
Affiliation:
Department of Chemical Engineering, Case Western Reserve University, Cleveland OH, USA
R. F. Savinell
Affiliation:
Department of Chemical Engineering, Case Western Reserve University, Cleveland OH, USA
*
*(Email: noel.buckley@UL.ie)
Get access

Abstract

Using cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS), it was shown for four different types of carbon that electrode treatments at negative potentials enhance the kinetics of VIV-VV and inhibit the kinetics of VII-VIII while electrode treatments at positive potentials inhibit the kinetics of VIV-VV and enhance the kinetics of VII-VIII. These observations may explain conflicting reports in the literature. The potentials required for activation and deactivation of electrodes were examined in detail. The results suggest that interchanging the positive and negative electrodes in a vanadium flow battery (VFB) would reduce the overpotential at the negative electrode and so improve the performance. This is supported by flow-cell experiments. Thus, periodic catholyte-anolyte interchange, or equivalent alternatives such as battery overdischarge, show promise of improving the voltage efficiency of VFBs.

Keywords

kineticsCV
Type
Articles
Information
MRS Advances , Volume 2 , Issue 21-22: Energy and Sustainability , 2017 , pp. 1131 - 1142
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 thereinCrossRefGoogle 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)CrossRefGoogle Scholar
Miller, M. A. et al., J. Electrochem. Soc. 163, A2095 (2016)CrossRefGoogle Scholar
Bourke, A. et al., J. Electrochem. Soc. 163, A5097 (2016) and references thereinGoogle Scholar
Bourke, A. et al., J. Electrochem. Soc. 162, A1547 (2015)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)CrossRefGoogle 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)CrossRefGoogle Scholar
Vijayakumar, M. et al., J. Power Sources 196, 3669 (2011); ibid 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)CrossRefGoogle Scholar
Whitehead, A. H. et al., J. Power Sources 230, 271 (2013)CrossRefGoogle Scholar
Oriji, G. et al., J. Power Sources 139, 321–324 (2005)CrossRefGoogle Scholar
Sum, E. et al., J. Power Sources 15, 179 (1985); ibid. 16, 85 (1985)CrossRefGoogle Scholar
Aaron, D. et al., ECS Electrochemistry Letters, 2, A29 (2013)Google Scholar
Kaneko, H. et al., Electrochimica Acta, 36, 1191 (1991)Google Scholar
Gattrell, M. et al., J. Electrochem. Soc., 151, A123 (2004)Google Scholar
Shao, Y. et al., J. Power Sources 195, 4375 (2010)Google Scholar
Gao, X. et al., Energy and Environmental Science 8, 897 (2015)Google Scholar