  The overpotential, dissociation rate, electrode potential distributions and
current density are suggested in this study to analyze the Nickel Vanadium
Redox Flow Battery (NVRFB). Due to its large capacity and ecofriendly
properties, NVRFB may be a viable option in the present state of energy
constraint and environmental pollution. Due to their low cost and high energy
density, nickel-based flow batteries have gained popularity. This study
demonstrates that the Ni2+/Ni+ and V5+/V4+ ions have a higher rate of
dissociation at the membrane and a lower rate at the inlet, where the
electrolyte flow velocity is greater; Because the membrane undergoes more
oxidation-reduction reactions, the electrolyte flow rate is critical in the
redox flow cell; Additionally, we see that when electrode thickness is reduced,
current density and electrode potential increase while overpotential decreases;
the model's equations are solved using the finite-element method in the COMSOL
Multiphysics program. An electrolyte-electrode interface connection is used to
simulate the reaction. The dissociation rate indicates that the
oxidation-reduction process happens at a lower membrane potential. Improving
the electrolyte flow rate enhances battery performance. Compression of the
electrodes enhances conductivity and battery performance.
