A silicon nanowire-reduced graphene oxide composite as a high-performance lithium ion battery anode material

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • Jian-Guo Ren
  • Chundong Wang
  • Qi-Hui Wu
  • Xiang Liu
  • Yang Yang
  • Lifang He

Detail(s)

Original languageEnglish
Pages (from-to)3353-3360
Journal / PublicationNanoscale
Volume6
Issue number6
Publication statusPublished - 21 Mar 2014

Abstract

Toward the increasing demands of portable energy storage and electric vehicle applications, silicon has been emerging as a promising anode material for lithium-ion batteries (LIBs) owing to its high specific capacity. However, serious pulverization of bulk silicon during cycling limits its cycle life. Herein, we report a novel hierarchical Si nanowire (Si NW)-reduced graphene oxide (rGO) composite fabricated using a solvothermal method followed by a chemical vapor deposition process. In the composite, the uniform-sized [111]-oriented Si NWs are well dispersed on the rGO surface and in between rGO sheets. The flexible rGO enables us to maintain the structural integrity and to provide a continuous conductive network of the electrode, which results in over 100 cycles serving as an anode in half cells at a high lithium storage capacity of 2300 mA h g-1. Due to its [111] growth direction and the large contact area with rGO, the Si NWs in the composite show substantially enhanced reaction kinetics compared with other Si NWs or Si particles. © The Royal Society of Chemistry.

Citation Format(s)

A silicon nanowire-reduced graphene oxide composite as a high-performance lithium ion battery anode material. / Ren, Jian-Guo; Wang, Chundong; Wu, Qi-Hui; Liu, Xiang; Yang, Yang; He, Lifang; Zhang, Wenjun.

In: Nanoscale, Vol. 6, No. 6, 21.03.2014, p. 3353-3360.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review