▎ 摘　　要

Flower-like CuCo2S4 nanosheets/graphene composites (abbreviated as CCS-G) were prepared by using a one-pot hydrothermal method. The morphology and structure of CCS-G were investigated by scanning electron microscope (SEM), transmission electron microscope (TEM), X-ray diffraction (XRD) and Raman spectroscopy. SEM and TEM images showed the hierarchical structure of CCS-G with flower-like morphology, which were composed of many nanosheets. As an anode material for the rechargeable lithium-ion batteries (LIBs), CCS-G exhibited the remarkably enhanced Li-storage performance in comparison with the pristine flower-like CuCo2S4 nanosheets (abbreviated as CCS). The reversible capacity of CCS-G is maintained to be 778.9 mA h g(-1) at a current density 0.1C after 60 cycles. Even at a high current density of 1C, CCS-G retains a much high specific capacity of 866.3 mA h g(-1) after 500 cycles.