Rechargeable Nickel-Iron Batteries for large-scale Energy storage

This manuscript reports the effect of bismuth sulphide and copper composites on the electrochemical performance of NiFe batteries. Nickel stripes were coated with an iron-rich electroactive paste and were cycled against commercial nickel electrodes. The electrodes thus produced were characterized by using galvanostatic charge/discharge, cyclic voltammetry and X-ray diffraction (XRD), atomic force microscopy (AFM) techniques. Our experimental results would indicate that the addition of iron sulphide and copper (II) sulphate significantly enhances the performance of the battery. Our in-house made iron-based electrodes exhibit good performance, and so they have a potential to store grid amounts of energy.