▎ 摘　　要

High-performance anode materials are highly desirable to the application of lithium-ion batteries (LIBs) in electric/hybrid electric vehicles and renewable energy storage. Herein, a nanocomposite composed of CoFe2O4 nanocubes homogeneously dispersed and closely stuck on graphene (CoFe2O4/G) has been constructed via a facile one-pot strategy. The obtained results show that the introduced graphene oxide can trigger the formation of nanocubic CoFe2O4 and the intimate interfacial contact between CoFe2O4 and graphene can be achieved. The CoFe2O4/G electrode displays outstanding cycling performance (1109 inA h g(-1) after 100 cycles at 0.2 A g(-1) and 835 mA h g(-1 )after 200 cycles at 1 A g(-1)) and excellent rate capability (420 mA h g(-1) at 5 A g(-1)). It is believed that this synthesis strategy can be extended to preparation of other ferrite/graphene nanocomposites.