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

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.