▎ 摘　　要

The interfacial resistance would be reduced significantly by coating carbon nanotubes (CNTs) macro film (CMF) on metallic copper foil for composite current collector (Cu- CMF), which will improve the adhesion between the active materials and current collectors. In addition, mixing the reduced graphene oxide (rGO) in graphite will further increase the contact area between the active materials. Thereby high specific capacity and electrochemical stability of the graphite electrode can be obtained. The microstructure and electrochemical properties of the electrodes were tested by SEM and electrochemical measurements. The results indicate that the graphite electrode has a specific capacity of 101.5 mAh center dot g(-1) at a rate of 2 C based on Cu-CMF current collector mixed with rGO, which is 3.7 times (26.3 mAh center dot g(-1)) higher than that of the untreated graphite electrode with copper current collector.