To store energy rechargeable batteries had developed widely. Over the concern of safety and cost-efficient, rechargeable aqueous metal-ion batteries are mostly favored. Various studies have been performed on different aqueous metal-ion batteries. Out of them, zinc-ion batteries have some unique and outstanding benefits. The aqueous electrolytes give assurance against exploding by their non-flammable nature. The zinc anodes are being used as it benefits the stability and redox reversibility. Zinc anodes have a higher theoretical capacity (820 mAh g−1) and low redox potential [−0.76 V vs. SHE (standard hydrogen electrode)]. As a measure to increase corrosion resistance, sodium sulphate is being used as an inhibitor. The zinc anode is being analyzed at different concentrations of the inhibitor and the best concentration is being identified for the battery applications. Potentiostatic EIS (Electrochemical Impedance Spectroscopy) and Tafel analysis are done to determine the corrosion behavior of the zinc with the addition of the inhibitor.