▎ 摘　　要

Co3O4 nanoplates/reduced graphene oxide (CGP) composite was synthesized through a facile hydrothermal method followed by thermal treatment. The obtained CGP composite exhibits a superior electrochemical performance as an anode for lithium ion batteries, especially after 150 discharge/charge cycles. Characterization of the microscopic features suggests that the structure of the Co3O4 nanoplates gradually evolves during cycling due to the electrochemical reconstruction process, transforming into an integrated architecture assembled by nanoparticles with thicknesses of tens of nanometers. The as-formed integrated nanostructure can reduce the stress caused by volume variations during cycling, provide short diffusion path lengths for Li ions and electrons, and offer good electrode conductivity to improve the reaction kinetics, which will tremendously enhance the electrochemical performance of the CGP electrode in lithium ion batteries. (C) 2018 Elsevier B.V. All rights reserved.