Estimating the State-of-Charge of all-Vanadium Redox Flow Battery using a Divided, Open-circuit Potentiometric Cell

Authors

  • M. R. Mohamed Universiti Malaysia Pahang
  • H. Ahmad Universiti Malaysia Pahang
  • M. N. Abu Seman Universiti Malaysia Pahang

DOI:

https://doi.org/10.5755/j01.eee.19.3.1623

Keywords:

Energy storage, modeling, redox flow batteries, state-of-charge

Abstract

In this paper, mathematical modelling of oxidation-reduction redox potential for estimating the state-ofcharge of V-RFB is presented. The estimation is based on the Nernst equation, a mass balance, Faraday’s law of electrolysis, and 1st order kinetic equation. The 25-100 cm2 laboratories, unit cell V-RFB is chosen as a model reaction for electrolyte redox potential measurement. Preliminary experiment is carried out using a 100 cm2 laboratory unit but the estimated value produced is inaccurate. An alternative design of 25 cm2 laboratory, unit cell V-RFB using a divided, open-circuit potentiometric cell is used. The redox potential of V(III)/V(II) and V(IV)/V(V) is measured through combined Hg/Hg2SO4 reference electrode and carbon rod working electrode. The differences between the experimental and estimated values are highlighted.

DOI: http://dx.doi.org/10.5755/j01.eee.19.3.1623

Author Biography

M. R. Mohamed, Universiti Malaysia Pahang

Fakulty of Electrical & Electronics Engineering

Universiti Malaysia Pahang

Pekan Campus

26600 Pekan, Pahang

MALAYSIA

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Published

2013-02-26

How to Cite

Mohamed, M. R., Ahmad, H., & Abu Seman, M. N. (2013). Estimating the State-of-Charge of all-Vanadium Redox Flow Battery using a Divided, Open-circuit Potentiometric Cell. Elektronika Ir Elektrotechnika, 19(3), 37-42. https://doi.org/10.5755/j01.eee.19.3.1623

Issue

Vol. 19 No. 3 (2013)

Section

ELECTRONICS

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