• 文献标题:   A flexible free-standing defect-rich MoS2/graphene/carbon nanotube hybrid paper as a binder-free anode for high-performance lithium ion batteries
  • 文献类型:   Article
  • 作  者:   ZHANG LS, FAN W, LIU TX
  • 作者关键词:  
  • 出版物名称:   RSC ADVANCES
  • ISSN:   2046-2069
  • 通讯作者地址:   Fudan Univ
  • 被引频次:   41
  • DOI:   10.1039/c5ra05038c
  • 出版年:   2015

▎ 摘  要

The rapid development of flexible energy storage devices has motivated people to seek reliable electrodes with both high mechanical flexibility and excellent electrochemical performance. Herein, we demonstrate a facile and scalable process to fabricate a flexible free-standing defect-rich MoS2/graphene/carbon nanotube (dr-MGC) hybrid paper, which can be directly used as a flexible binder-free anode for lithium ion batteries. Benefiting from the excellent dispersibility of defect-rich MoS2 nanosheets (dr-MoS2 NSs) and graphene oxide/carbon nanotube (GO/CNT) hybrids in aqueous solution, a unique three-dimensional (3D) nanoporous architecture with ultrathin dr-MoS2 NSs homogeneously embedded in graphene/CNT frameworks is nicely constructed by a simple vacuum filtration and thermal reduction process. As a consequence, the flexible free-standing dr-MGC21 hybrid paper exhibits a high reversible capacity of 1137.2 mA h g(-1) at a current density of 0.1 A g(-1) with excellent cyclic stability and rate capability. The superior electrochemical performance of the dr-MGC hybrid paper is ascribed to the 3D nanoporous architecture as well as the synergistic effect between the dr-MoS2 NSs and conductive graphene/CNT network. Moreover, the idea of utilizing graphene/CNT hybrids as flexible conductive frameworks provides a novel pathway for the large-scale fabrication of various flexible binder-free electrodes for high-performance flexible energy storage devices.