▎ 摘　　要

Metal sulfides are promising anode materials for lithium ion batteries (LIBs) and sodium ion batteries (SIBs) owing to their high theoretical capacity and good reaction reversibility upon lithiation/delithiation and sodiation/desodiation. However, the practical application of metal sulfides is severely hindered by its poor conductivity and huge volume change during cycling. Herein, a three dimensional hierarchical architecture is rational designed and synthesized through incorporating ZnS-SnS heterostructure encapsulated by carbon shell into graphene matrix. The interconnected conductive networks from the graphene skeleton and outer coating carbon can not only provide a high efficient transfer path for electron and ion, but also accommodate the volume variation effectively upon charging/discharging. Additionally, the in-situ constructed ZnS-SnS heterostructures provide extra charge transfer driving force because of a built-in electric field. Consequently, the as obtained ZnSSnS@C hollow nanoboxes wrapped by grpahene show high specific capacity, long cycle lifetime and excellent rate performance when applied for anodes of LIBs and SIBs.