A bm-SiO/Ni/rGO composite as an anode material for lithium-ion batteries

Abstract SiO(silicon monoxide) anode have received widespread attention owing to the great potential for the development of modern society. Although SiO has a large Li capacity, the short cycle life, poor rate capability and low coulombic efficiency limits its wide applications. In this paper, we adopt hydrothermal mixing and sintering process to form a ball milling bm-SiO based, Ni doped and rGO recombined composite (bm-SiO/Ni/rGO) anode material, which shows excellent cycle performance with the initial columbic efficiency of 65%, the discharge capacity of 720 mAh g −1 at 100 mA g −1 current density after 100 cycles and good rate performance. The improvement of electrochemical performance can be ascribed to the interaction effects of the limited damage of volume change, the open structure of reduced graphene oxide, and the cycle stability with the Ni doping.