Title : Characterization of honeycomb structured carbonaceous anode material for sodium-ion battery application
Abstract:
Because of their low cost and abundant resources, sodium ion batteries (SIBs) have drawn attention of researchers in recent years for possible large-scale energy-storage application [1-3]. Sodium has similar chemical and physical properties with lithium. However, finding a suitable anode material is still a major challenge in realizing the practical utilization of sodium-ion battery as an energy storage device. Owing to its excellent electrochemical property, hard carbon has emerged as a potential anode material for sodium ion battery. Hard carbons are synthesized by pyrolysis of bio-waste materials [2-4]. Hard carbon can be obtained from environmentally friendly, inexpensive, and renewable bio-sources which represent a great advantage in terms of costs as well as large scale production and commercialization [5-6]. In this study, carbonaceous anode material has been synthesized for SIBs by carbonization of waste pea skins at different temperatures ranging from 750° to 1400?. Due to its structure being honeycomb type with open pore channels, the pea skin carbonized at 750? is reported to have highest reversible discharge capacity of over 250 mAhg-1 at 10 mAg-1 with stable cyclic performance. The post-cycled anodes were analyzed by scanning electron microscope (SEM), X-ray diffractometer (XRD), X-ray photoelectron spectroscope (XPS) and Raman spectrophotometer. The electrode kinetics was evaluated using electrochemical impedance spectroscopy (EIS) and cyclic voltammetry (CV) method.
Keywords: Honeycomb Structure; Carbonization; Electrochemical Characteristics.
