• 文献标题:   Reduced graphene oxide anchored tin sulfide hierarchical microspheres with superior Li-ion storage performance
  • 文献类型:   Article
  • 作  者:   JIN HQ, GU MZ, JI SM, XU XJ, LIU J
  • 作者关键词:   sulfide, nanostructure, chemical synthesi, electrochemical propertie, energy storage
  • 出版物名称:   IONICS
  • ISSN:   0947-7047 EI 1862-0760
  • 通讯作者地址:   Xiangtan Univ
  • 被引频次:   14
  • DOI:   10.1007/s11581-016-1712-3
  • 出版年:   2016

▎ 摘  要

Tin-based composites are promising high-capacity anode materials for Li-ion batteries, but they usually exhibit poor cycling stability because of their large volume expansion during the Li uptake and release process. We reported a facile solvothermal method to produce nanosheet-assembled SnS microspheres and a rational strategy to improve the electrochemical performance of SnS microspheres by anchoring on reduced graphene oxide (RGO) networks. The as-prepared SnS/RGO nanocomposites were characterized by XRD, SEM, TEM, TGA, and Raman spectra. The electrochemical results show that the SnS/RGO electrode exhibited high reversible capacity and good cycling stability (delivered a capacity of 760 mAh g(-1) after 100 cycles at a current density of 100 mA g(-1)). The superior electrochemical performance can be attributed to the large available surface area, high conductivity, and fast transportation of electrons and Li-ions; these are benefited from the unique hybrid structure and the synergistic effect between SnS and RGO.