222. A flexible free-standing defect-rich MoS2 / graphene / carbon nanotube hybrid paper as binder-free anode for high-performance lithium ion batteries.
作者：L. S. Zhang, W. Fan, T. X. Liu*
關(guān)鍵字：defect-rich MoS2, graphene, carbon nanotubes, hybrid paper, lithium ion battery
論文來源：期刊
具體來源：RSC Adv., 2015, 5(54), 43130-43140.
發(fā)表時間：2015年
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.