Self-assembled hierarchical hollow CuS@MoS2 microcubes with superior lithium storage

•Hierarchical hollow CuS@MoS2 microcubes are prepared by a general route.•The 3D hollow structures are assembled by 2D nanosheets.•The capacity of 998mAhg−1 can be stably retained with a 91.4% retention after 200 cycles.•The electrode exhibits good rate performance from 500 to 4000mAg−1.