Electrochemical properties of Sn-based nanopowders synthesized by a pulsed wire evaporation method and effect of binder coating

•Sn-based nanoparticles are fabricated by using the pulsed wire evaporation method.•The electrodes are prepared by mixing the graphene and coating the surface.•Coating the surface of electrode is used with brushing of simple and facile method.•The electrochemical measurements are performed with galvanostatic experiments.•The coating electrode maintains capacity nearly of 501 mAh g−1 up to 100 cycles.

Sn-based nanoparticles are prepared with the O2 concentrations in chamber of Ar atmosphere (by v/v) by using the pulsed wire evaporation (PWE) method. The prepared electrodes are only Sn-based powder electrode, its binder coating electrode and Sn-based powder/graphene nanocomposite electrode. Morphology and structure of the synthesized powders and electrodes are investigated with a field emission scanning electron microscope (FE-SEM) and an X-ray diffraction (XRD) analysis. The electrochemical measurements were performed with galvanostatic cycling experiments using a coin type cell of CR2032 (Ø20, T3.2 mm). The binder coating electrode is superior to others and maintains delithiation capacity nearly of 501 mAh g−1 as 58.3% of first delithiation capacity at 0.2 C-rate up to 100 cycles.

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