A STUDY OF THE Ti-Mn REDOX COUPLE FOR REDOX FLOW BATTERY BASED ON COMSOL

Authors

  • Shinthia Binte Eskender Department of Materials Science and Engineering, Khulna University of Engineering and Technology, Khulna 9203, Bangladesh
  • Anupam Saha Department of Materials Science and Engineering, Khulna University of Engineering and Technology, Khulna 9203, Bangladesh

DOI:

https://doi.org/10.53808/KUS.2022.ICSTEM4IR.0119-se

Abstract

In this study, the distribution of overpotential, dissociation rate, electrode potential, current density, and comparison of dissociation rate with Vanadium ion is proposed to examine for a Titanium Manganese Redox Flow Battery (TMRFB). TMRFB can be a solution in the current condition of energy scarcity and environmental pollution due to its high capacity and ecofriendly characteristics. Rather with the more expensive vanadium redox flow batteries, Mn-based flow batteries have gained appeal due to their inexpensive cost and high energy density. This study shows that the Ti4+/ Ti3+ and Mn3+/Mn2+ ions have higher dissociation rate at the membrane and lower at the inlet where the velocity of the electrolyte flow is higher; The membrane undergoes more oxidation-reduction reactions, therefore the electrolyte flow rate is crucial in the redox flow cell; Furthermore, our study finds that as electrode thickness is compressed, current density and electrode potential are enhanced while overpotential is lowered; comparison with vanadium redox battery it is found that Ti-Mn shows greater dissociation rate than Vanadium ions. The model's equations are solved by using the finite-element approach in COMSOL Multiphysics software. The reaction is modeled using an electrolyte-electrode interface connection. Dissociation rate shows that the oxidation-reduction reaction occurs with less potential at the membrane. Battery performance can be increased by optimizing the electrolyte flow rate. Electrode compression increases conductivity and battery performance.

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References

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Published

18-10-2022

How to Cite

[1]
S. B. . Eskender and A. . Saha, “A STUDY OF THE Ti-Mn REDOX COUPLE FOR REDOX FLOW BATTERY BASED ON COMSOL”, Khulna Univ. Stud., pp. 58–69, Oct. 2022.