• 文献标题:   Free standing SnS2 nanosheets on 3D graphene foam: an outstanding hybrid nanostructure anode for Li-ion batteries
  • 文献类型:   Article
  • 作  者:   HUANG ZX, WANG Y, WONG JI, YANG HY
  • 作者关键词:   two dimensional, sns2, 3dgraphene foam, binderfree, lithium ion batterie
  • 出版物名称:   2D MATERIALS
  • ISSN:   2053-1583
  • 通讯作者地址:   Singapore Univ Technol Design
  • 被引频次:   24
  • DOI:   10.1088/2053-1583/2/2/024010
  • 出版年:   2015

▎ 摘  要

Two-dimensional (2D) materials are attracting increased research interest due to their unique physical properties and potential for application in various electronic devices. Herein, the combination of 2D materials consisting of vertical aligned tin sulfide (SnS2) nanosheets and three-dimensional graphene (3DG) are designed as a superior functional anode material for energy storage devices using the merits of the two materials. The SnS2/3DG hybrid nanostructure was synthesized via a single-step solvothermal method and further used as a binder-free anode in lithium ion batteries (LIBs). The binder-free SnS2/3DG electrode shows excellent electrochemical performance including superior specific capacity, enhanced rate capability and outstanding cycling stability compared to pure SnS2 and 3DG. SnS2/3DG hybrid nanocomposite electrodes are able to deliver high reversible capacities of 771.2 mAh g(-1) and 433.3 mAh g(-1) at the current densities of 200 and 1000 mA g(-1), respectively. The excellent electrochemical performance of SnS2/3DG nanocomposite is attributed to the synergistic effect between SnS2 and 3DG. These results demonstrate SnS2/3DG nanocomposites as a highly promising anode material for future generation LIBs.