Three-dimensional CNTs wrapped Li3V2(PO4)3 microspheres cathode with high-rate capability and cycling stability for Li-ion batteries

Herein, we design a simple strategy for constructing three-dimensional carbon nanotubes (CNTs) wrapped Li3V2(PO4)(3) (Li3V2(PO4)(3)/CNTs) microspheres via a spray -drying assisted solid-state reaction method. In this composite, the CNTs are homogeneously embedded in the nanocrystalline Li3V2(PO4)(3) to form the three-dimensional conductive networks. Electrodes fabricated from these microspheres exhibit effective electron and ion transport when used as cathode materials for Li-ion batteries. The Li3V2(PO4)(3)/CNTs material shows high reversible capacity (189.3 mAh g(-1) at 0.1 degrees C), good rate capability (165.7 mAh g(-1) at 5 degrees C) and long-term cycling performance (89.5% of capacity retention up to 300 cycles at 10 degrees C). The present results demonstrate promising applications of the Li3V2(PO4)(3)/CNTs microspheres as high performance cathode materials for Li-ion batteries.