J. Mater. Sci. Technol. ›› 2021, Vol. 80: 13-19.DOI: 10.1016/j.jmst.2020.12.006

• Research Article • Previous Articles     Next Articles

One-step fabrication of two-dimensional hierarchical Mn2O3@graphene composite as high-performance anode materials for lithium ion batteries

Zhou Zhou, Chaoying Ding, Wenchao Peng, Yang Li, Fengbao Zhang, Xiaobin Fan*()   

  1. School of Chemical Engineering and Technology, State Key Laboratory of Chemical Engineering, Collaborative Innovation Center of Chemical Science and Engineering, Tianjin University, Tianjin, 300072, China
  • Received:2020-07-20 Accepted:2020-09-08 Published:2020-12-17 Online:2020-12-17
  • Contact: Xiaobin Fan
  • About author:* E-mail address: xiaobinfan@tju.edu.cn (X. Fan).

Abstract:

Two-dimensional (2D) hierarchical Mn2O3@graphene composite is synthesized by a one-step solid-phase reaction. The nanosheets of Mn2O3 are vertically grown on few-layered graphene, constructing a unique 2D hierarchical structure. As an anode material for lithium-ion batteries (LIBs), this hierarchical composite displays excellent electrochemical performances, showing an extraordinary reversible discharge capacity of 2125.9 mA h g-1. Moreover, a record high reversible capacity of 1746.8 mA h g-1 is maintained after 100 cycles at a current density of 100 mA g-1, which retains 82.2 % of the initial capacity. Such an outstanding performance could be attributed to its novel structure and the synergistic effects between the Mn2O3 and graphene.

Key words: Mn2O3, Graphene, Anode material, 2D hierarchical structure, Lithium ion battery