▎ 摘　　要

Sb/graphene composite with low content of Sb (9.2 wt%) was prepared by hydrothermal method plus high-temperature calcination using potassium antimony tartrate and graphene oxide as raw materials. This composite exhibits high charge capacity (601.4 mAh g(-1) at 100 mA g(-1)), better cycle performance (345.3 mAh g(-1) at 100 mA g(-1) after 100 cycles) and rate capability (255.9 mAh g(-1) at 800 mA g(-1)). The improved electrochemical performance benefits from the special microstructure of composite with in situ formed Sb nanoparticles and few-layer graphene and the synergetic effects of these two electroactive materials.