One-step hydrothermal synthesis of flower-like SnO2/carbon nanotubes composite and its electrochemical properties

In this work, flower-like SnO₂/carbon nanotubes (CNTs) composite was synthesized by one-step hydrothermal method for high-capacity lithium storage. The microstructures of products were characterized by XRD, FESEM and TEM. The electrochemical performance of the flower-like SnO₂/CNTs composite was measured by cyclic voltammetry and galvanostatic charge/discharge cycling. The results show that the flower-like SnO₂/CNTs composite displays superior Li-battery performance with large reversible capacity and high rate capability. The first discharge and charge capacities are 1,230 and 842 mAh g^?1, respectively. After 40 cycles, the reversible discharge capacity is still maintained at 577 mAh g^?1 at the current densities of 50, 100 and 500 mA g^?1, indicating that it’s a promising anode material for high performance lithium-ion batteries.