▎ 摘　　要

The nanocomposites of SnO2-CuO/graphene are synthesized via a two-step method. CuO nanorods are firstly uniformly loaded on the graphene nanosheets, and then SnO2 nanoparticles are coated on CuO nanorods. SnO2-CuO/graphene nanocomposites exhibit high cyclability and capacity as anode of Li-ion battery. After 30 cycles, the capacity can maintain at 584 mAh g(-1) at 0.1C rate (10 h per half cycle). The high performance can be ascribed to the synergistic effect among SnO2 nanoparticles, CuO nanorods and graphene nanosheets. The results manifest that the nanocomposites of SnO2-CuO/graphene are very suitable for Li-ion battery anodes.