Mesoporous ZnCo2O4 microspheres composed of ultrathin nanosheets cross-linked with metallic NiSix nanowires on Ni foam as anodes for lithium ion batteries

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

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Author(s)

  • Huixin Chen
  • Qiaobao Zhang
  • Jiexi Wang
  • Qiang Wang
  • Xiang Zhou
  • Xinhai Li
  • Yong Yang

Detail(s)

Original languageEnglish
Pages (from-to)245-258
Journal / PublicationNano Energy
Volume10
Online published2 Oct 2014
Publication statusPublished - Nov 2014

Abstract

ZnCo2O4 microspheres with hierarchical mesoporous structures composed of ultrathin nanosheets cross-linked with metallic NiSix nanowires are successfully synthesized on Ni foam via a combined facile chemical vapor deposition (CVD) and simple but powerful chemical bath deposition (CBD) followed by a calcination process. The ZnCo2O4 microspheres/NiSix nanowires are directly employed as binder- and conductive-agent-free anodes for lithium ion batteries (LIBs). The resultant integrated electrodes exhibit remarkable electrochemical performances in terms of high specific capacity, superior rate capability and outstanding cycling stability due to their advantageously structural features including mesoporous feature of ZnCo2O4 microspheres, highly conductive NiSix nanowire scaffold and cross-linked network structure with the intimate interconnection between ZnCo2O4 microspheres and NiSix nanowires. A reversible capacity up to 701mAhg-1 after 340 cycles at a high current density of 1Ag-1 and a capacity of about 373mAhg-1 after 10 cycles even at a current density as high as 4Ag-1 can be retained, suggesting their great potential as efficient electrodes for high-performance LIBs.

Research Area(s)

  • Anode materials, Lithium-ion batteries, Mesoporous nanosheets, ZnCo2O4 microspheres, ZnCo2O4/NiSix

Citation Format(s)

Mesoporous ZnCo2O4 microspheres composed of ultrathin nanosheets cross-linked with metallic NiSix nanowires on Ni foam as anodes for lithium ion batteries. / Chen, Huixin; Zhang, Qiaobao; Wang, Jiexi; Wang, Qiang; Zhou, Xiang; Li, Xinhai; Yang, Yong; Zhang, Kaili.

In: Nano Energy, Vol. 10, 11.2014, p. 245-258.

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