SnO2@C nanowires as high-performance anodic materials for lithium-ion batteries

Abstract SnO2@Carbon (SnO2@C) nanowires were prepared using the method electrospinning. After the heat treatment of the SnCl2/polyvinypyrrolidone nanofibers, SnO2 nanoparticles (∼20 nm) were uniformly embedded and distributed on the surface of carbon nanowires. The SnO2@C manifested a strong synergistic effect that originated from its wrapped nanoarchitecture, which was proved to be highly conductive with small volume change. This SnO2@C nanowires shown high reversible capacity and excellent cycling performance of 680 mAh g-1 at 100 mA g-1 after 50 cycles.