▎ 摘　　要

Multilayer graphene is prepared by micromechanical exfoliation method. Then, it is used as conductive component for lithium ion battery SiOx anodes. Uniform SiOx/graphene composite materials with different percentages of graphene are obtained by high-energy ball milling process. The multilayer graphene can connect the SiOx particles and enhance the electrical conductivity effectively. The optimized SiOx/graphene composite electrode exhibits excellent electrochemical performance with initial reversible specific capacity of 1325.7 mAhg(-1) and capacity retention as high as 95.8% (1269.7 mAhg(-1)) after 120 cycles. The mechanical exfoliation approach used for the production of multilayer graphene is low-cost, mass-productive and effective in SiOx conductivity enhancement. The excellent conductive agent of multilayer graphene could be employed for high-performance lithium ion battery SiOx anodes. (C) 2019 Elsevier B.V. All rights reserved.