TY - JOUR AU - Mohamed, M. R. AU - Ahmad, H. AU - Abu Seman, M. N. PY - 2013/02/26 Y2 - 2024/03/28 TI - Estimating the State-of-Charge of all-Vanadium Redox Flow Battery using a Divided, Open-circuit Potentiometric Cell JF - Elektronika ir Elektrotechnika JA - ELEKTRON ELEKTROTECH VL - 19 IS - 3 SE - DO - 10.5755/j01.eee.19.3.1623 UR - https://eejournal.ktu.lt/index.php/elt/article/view/1623 SP - 37-42 AB - <p>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 1<sup>st</sup> order kinetic equation. The 25-100 cm<sup>2</sup> laboratories, unit cell V-RFB is chosen as a model reaction for electrolyte redox potential measurement. Preliminary experiment is carried out using a 100 cm<sup>2</sup> laboratory unit but the estimated value produced is inaccurate. An alternative design of 25 cm<sup>2 </sup>laboratory, unit cell V-RFB using a divided, open-circuit potentiometric cell is used. The redox potential of <em>V(III)/V(II) and V(IV)/V(V) </em>is measured through combined Hg/Hg<sub>2</sub>SO<sub>4 </sub>reference electrode and carbon rod working electrode. The differences between the experimental and estimated values are highlighted.</p><p>DOI: <a href="http://dx.doi.org/10.5755/j01.eee.19.3.1623">http://dx.doi.org/10.5755/j01.eee.19.3.1623</a></p> ER -