Abstract

The dense VS4 nanorods laterally anchored on the bilateral surface of reduced graphene oxide nanosheets (VS4@rGO) are successfully constructed through a simple hydrothermal method. Benefiting from the synergistic effect of VS4 nanorods with abundant energy storage sites, rGO nanosheets with high electrical conductivity and their interfacial lattice interaction and VC bond, VS4@rGO sodium-ion battery (SIB) anode shows the superior rate capability with the specific capacity of 264, 176 and 114 mAh/g at 1, 5 and 10 A/g after 1000 cycles, respectively. The work provides a high-performance anode material for SIB and a new design idea for metal sulfides/carbon heterostructures in energy storage field.

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