Uniform Incorporation of Flocculent Molybdenum Disulfide Nanostructure into Three-Dimensional Porous Graphene as an Anode for High-Performance Lithium Ion Batteries and Hybrid Supercapacitors

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

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Author(s)

  • Fan Zhang
  • Yongbing Tang
  • Hui Liu
  • Hongyi Ji
  • Chunlei Jiang
  • Jing Zhang
  • Xiaolong Zhang

Detail(s)

Original languageEnglish
Pages (from-to)4691-4699
Journal / PublicationACS Applied Materials and Interfaces
Volume8
Issue number7
Publication statusPublished - 24 Feb 2016

Abstract

Hybrid supercapacitors (HSCs) with lithium-ion battery-type anodes and electric double layer capacitor-type cathodes are attracting extensive attention and under wide investigation because of their combined merits of both high power and energy density. However, the performance of most HSCs is limited by low kinetics of the battery-type anode which cannot match the fast kinetics of the capacitor-type cathode. In this study, we have synthesized a three-dimensional (3D) porous composite with uniformly incorporated MoS2 flocculent nanostructure onto 3D graphene via a facile solution-processed method as an anode for high-performance HSCs. This composite shows significantly enhanced electrochemical performance due to the synergistic effects of the conductive graphene sheets and the interconnected porous structure, which exhibits a high rate capability of 688 mAh/g even at a high current density of 8 A/g and a stable cycling performance (997 mAh/g after 700 cycles at 2 A/g). Furthermore, by using this composite as the anode for HSCs, the HSC shows a high energy density of 156 Wh/kg at 197 W/kg, which also remains at 97 Wh/kg even at a high power density of 8314 W/kg with a stable cycling life, among the best results of the reported HSCs thus far.

Research Area(s)

  • 3D porous composite, anode, graphene, hybrid supercapacitor, molybdenum disulfide

Citation Format(s)

Uniform Incorporation of Flocculent Molybdenum Disulfide Nanostructure into Three-Dimensional Porous Graphene as an Anode for High-Performance Lithium Ion Batteries and Hybrid Supercapacitors. / Zhang, Fan; Tang, Yongbing; Liu, Hui et al.
In: ACS Applied Materials and Interfaces, Vol. 8, No. 7, 24.02.2016, p. 4691-4699.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review