• 文献标题:   Graphene-wrapped sulfur-based composite cathodes: ball-milling synthesis and high discharge capacity
  • 文献类型:   Article
  • 作  者:   SU Z, GAO CL, LI HL, NANDA S, LAI C, XI K
  • 作者关键词:  
  • 出版物名称:   RSC ADVANCES
  • ISSN:   2046-2069
  • 通讯作者地址:   Jiangsu Normal Univ
  • 被引频次:   3
  • DOI:   10.1039/c4ra08164a
  • 出版年:   2014

▎ 摘  要

A facile ball-milling route, which can help in large-scale synthesis, is developed to prepare graphene-wrapped sulfur/carbon nanotubes composite. Electrochemical tests show that the obtained composite demonstrates high sulfur utilization and good cycle performance. As calculated by the total mass of the composite, a high reversible capacity of 626.0 mA h g(-1) can be obtained after 70 cycles at a current density of 400 mA g(-1).