Improved tin oxide nanosphere material via co-precipitation method as an anode for energy storage application in Li-ion batteries

Abstract

The present proposed work, a design and fabrication of tin oxide nanosphere (SnO2) using tin(II) oxyhydroxide and terephthalic acid composite materials, for the first time, via co-precipitation method. The morphology of the materials is found to be a well-crystalline nature and agglomerated with nanospherical shapes; it exhibits a 20–30-nm particle size. The electrochemical discharge–charge studies have been done using a half-cell (2032-sized coin type) at current rate 100 mA g−1 and within the potential range of 0.01 and 2.0 V vs. Li/Li+. The impedance spectroscopy (EIS) and cyclic voltammetry (CV) studies are showing high resistance and a good oxidation–reduction properties. The cycle number vs. capacities illustrates the initial discharge capacity of 1149 mAh g−1 and the charge capacity retention from the second cycle (91%), respectively; it have been maintained up to the end of cycling. Thus, the prepared electrode can be developed for reversibility properties and possibly used as an anode for Li-ion batteries.