Improvement of electrochemical behavior of Sn2Fe/C nanocomposite anode with Al2O3 addition for lithium-ion batteries

Jae Myung Lee, Heechul Jung, Yoon Hwa, Hansu Kim, Dongmin Im, Seok Gwang Doo, Hun Joon Sohn

Research output: Contribution to journalArticlepeer-review

18 Scopus citations

Abstract

Sn2Fe/Al2O3/C nanocomposites are synthesized using a high-energy, mechanical milling method with thermally synthesized Sn2Fe, Al2O3 and carbon (Super P) powders. The effect of Al2O3 addition on the microstructure of the Sn2Fe/Al2O3/C nanocomposites is examined. The electrochemical characteristics of the material as an anode in lithium-ion batteries are also evaluated. High-resolution transmission electron microscopy shows that the crystallite size of active Sn2Fe in the Sn2Fe/Al2O3/C nanocomposite is smaller than that of the Sn2Fe/C nanocomposite without Al2O3. A decrease in the initial irreversible capacity and enhanced cycle performance of the Sn2Fe/Al2O3/C nanocomposite electrode are observed.

Original languageEnglish (US)
Pages (from-to)5044-5048
Number of pages5
JournalJournal of Power Sources
Volume195
Issue number15
DOIs
StatePublished - Aug 1 2010
Externally publishedYes

Keywords

  • Alumina
  • Anode
  • Cycle performance capacity
  • Lithium-ion battery
  • Tin-based nanocomposite

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Energy Engineering and Power Technology
  • Physical and Theoretical Chemistry
  • Electrical and Electronic Engineering

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