Performance of hybrid SnO2/Li2FeMn3O8 nanostructured electrode for efficient Li ion storage application

Abstract

Li₂FeMn₃O₈ (LFMO) nanocomposite material for Li-ion battery is synthesized using chemical combustion method. To fabricate a hybrid nanostructure electrode, LFMO is coated on tin oxide (SnO₂) nanorods (NR), which is grown using a vapor-liquid solid (VLS) technique on a steel substrate. The surface morphology of the hybrid nanostructure electrode confirms that, single crystalline SnO₂ nanorods are grown vertically with spine-like structures, a few microns in length, as evident from field emission scanning electron microscope image. The electrochemical performance of SnO₂/LFMO shows very interesting characteristic with enormous charge storage capability. The coin cell shows improved capacity with a higher number of charging and discharging cycles. This SnO₂/LFMO hybrid composite electrode shows better specific capacitance value as compared to the pristine SnO₂ electrode.