Rechargeable nickel–iron batteries for large-scale energy storage

• Published in: IET renewable power generation Vol. 10; no. 10; pp. 1529 - 1534
• Main Authors: Abdalla, Abdallah H, Oseghale, Charles I, Gil Posada, Jorge O, Hall, Peter J
• Format: Journal Article
• Language: English
• Published: The Institution of Engineering and Technology 01.11.2016
• Subjects: atomic force microscopy; atomic force microscopy techniques; commercial nickel electrodes; composite materials; Copper; copper composites; cyclic voltammetry; Electric batteries; electrochemical electrodes; electrochemical performance; electrode electrochemical characterisation; Electrodes; Energy storage; FeS2; galvanostatic charge‐discharge; grid energy storage; Iron; iron compounds; iron sulphide effect; iron‐based electrodes; iron‐rich electroactive paste; large‐scale energy storage; Nickel; nickel stripes; Ni‐Fe; Rechargeable batteries; rechargeable nickel‐iron batteries; secondary cells; Special Issue: Selected Papers from the Offshore Energy & Storage Symposium (OSES 2015); Sulfides; voltammetry (chemical analysis); X‐ray diffraction; copper composites; X-ray diffraction; iron compounds; Cu; voltammetry (chemical analysis); nickel stripes; secondary cells; copper; electrode electrochemical characterisation; rechargeable nickel-iron batteries; iron sulphide effect; iron-based electrodes; composite materials; nickel; electrochemical electrodes; atomic force microscopy techniques; Ni-Fe; atomic force microscopy; commercial nickel electrodes; grid energy storage; large-scale energy storage; cyclic voltammetry; galvanostatic charge-discharge; iron; iron-rich electroactive paste; electrochemical performance; FeS2
• ISSN: 1752-1416; 1752-1424; 1752-1424
• DOI: 10.1049/iet-rpg.2016.0051

This study reports the effect of iron sulphide and copper composites on the electrochemical performance of nickel–iron batteries. Nickel stripes were coated with an iron-rich electroactive paste and were cycled against commercial nickel electrodes. The electrodes electrochemical and physical characterisation were carried out by using galvanostatic charge/discharge, cyclic voltammetry, X-ray diffraction, and atomic force microscopy techniques. The authors’ experimental results would indicate that the addition of iron sulphide and copper (II) sulphate significantly enhances the performance of the battery. Their in-house made iron-based electrodes exhibit good performance, with great potential for grid energy storage applications.