Transition Metal Oxides as the Electrode Material for Sodium-Ion Capacitors

The research of energy-storage systems has been encouraged in the last ten years by rapid development portable electronic gadgets. Hybrid-ion capacitors are a novel kind capacitor-battery hybrid energy storage device that earned lot interest because their high power density while maintaining and long lifecycle. Mostly, lithium-based technology is now being studied for use electric grid storage. But price increment intermittent availability lithium reserves make commercialization unstable. Therefore, sodium-based technologies have proposed as potential substitutes technologies. Sodium-ion (SICs) acknowledged innovative which lower standard electrode potentials costs than lithium-ion capacitors. However, large radius sodium ion also contributes to unfavorable reaction kinetics, low density, brief lifespan SICs. Recently, transition metal oxide (TMO)-based candidates considered due theoretical capacity, environmental friendliness, cost This study summarizes current advancements TMOs SIC applications. Also, we covered detail state exploration upcoming prospects