Investigation on electrochemical performance of SnO2-Carbon nanocomposite as better anode material for lithium ion battery

The incorporation of Carbon in Tin Oxide (SnO2) nanocomposite (SnO2@C NCs) was synthesized successfully by hydrothermal method with sucrose and fin dichloride dihydrate (SnCl2 center dot 2H(2)O) as precursor materials and was sintered at different temperatures. The as prepared SnO2-Carbon nanocomposites were characterized by various techniques such as X-ray powder diffraction (XRD), Scanning electron microscopy (SEM) along with Energy dispersive X-ray (EDX), high resolution transmission electron microscopy (HR-TEM), Raman spectra, TGA and Electrochemical analyses. The controlled addition of Carbon in SnO2 to exhibit enhanced electrochemical property was also studied. It was demonstrated that the Carbon derived from sucrose assisted anode showed the high reversible capacity of about 581 mAhg(-1) indicating that the possibility of further increment in Li storage property. The initial discharge capacities of the samples heat treated at 400 degrees C, 450 degrees C and 500 degrees C were 1424.79, 1061.71 and 531.28 mAh g(-1), exhibiting an increasing trend in capacity with increasing the Carbon content. The columbic efficiency of SnO2@C NCs attains more than 95%. The electrodes show a long cycling ability and high charge and discharge capacity due to the presence of carbon.