Rugated porous Fe 3O 4 thin films as stable binder-free anode materials 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)

  • Hua Cheng
  • Zhouguang Lu
  • Ruguang Ma
  • Yucheng Dong
  • H. E. Wang
  • Liujiang Xi
  • Lingxia Zheng
  • Chun Kwan Tsang
  • Hui Li

Related Research Unit(s)

Detail(s)

Original languageEnglish
Pages (from-to)22692-22698
Journal / PublicationJournal of Materials Chemistry
Volume22
Issue number42
Publication statusPublished - 14 Nov 2012

Abstract

Rugated porous Fe 3O 4 thin films were synthesized by a facile multi-pulse electrochemical anodization method. The fabricated Fe 3O 4 films are directly grown on Fe, featuring nano-channels with periodically rugated channel walls running throughout the film thickness direction. Electrochemical measurements show that the as-prepared Fe 3O 4 films readily serve as high-performance anode materials for lithium ion batteries with a specific capacity of 1100, 880 and 660 mA h g -1 at 0.1, 0.2, and 0.5 C, respectively, which compared favorably with the conventional straight-channel counterparts fabricated by DC anodization. Moreover, the cycling capability test of the novel electrode at 0.1 C for 100 cycles shows a steady charge/discharge platform, indicating a high cycling stability and structural robustness. The observed improvements of the rugated Fe 3O 4 films as lithium ion battery anode materials are attributed to their special periodic rugated nanostructures. © 2012 The Royal Society of Chemistry.

Citation Format(s)

Rugated porous Fe 3O 4 thin films as stable binder-free anode materials for lithium ion batteries. / Cheng, Hua; Lu, Zhouguang; Ma, Ruguang; Dong, Yucheng; Wang, H. E.; Xi, Liujiang; Zheng, Lingxia; Tsang, Chun Kwan; Li, Hui; Chung, C. Y.; Zapien, J. A.; Li, Yang Yang.

In: Journal of Materials Chemistry, Vol. 22, No. 42, 14.11.2012, p. 22692-22698.

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