Abstract
SnO2-WO3@C (SWC) anode material was synthesized by hydrothermal and ball milling methods. WO3 has a catalytic effect and enhances the efficiency of Sn/Li2O conversion to SnO2 while also effectively preventing the coarsening and stacking of Sn. Thus, SWC shows a large reversible capacity of 1070.4 mAh/g after 200 cycles at 0.2 A/g, a remarkable rate performance of 518.7 mAh/g at 5.0 A/g and a stable long-term cyclability of 1433.3 mAh/g after 900 cycles at 1.0 A/g. So, SWC is expected to become the mainstream choice for anode electrode materials in lithium-ion batteries (LIBs).
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