Self-supported multi-walled carbon nanotube-embedded silicon nanoparticle films for anodes of Li-ion batteries

Kyung Soo Park, Kyung Mi Min, Seung Deok Seo, Gwang Hee Lee, Hyun Woo Shim, Dong Wan Kim

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

Self-supported multi-walled carbon nanotube (MWCNT)-embedded Si nanoparticle (NP) film electrodes for Li-ion rechargeable batteries have been prepared through chemical vapor deposition using acetylene gas and a facile spin coating process using commercial Si nanopowders. The void spaces between the MWCNTs were densely filled with a considerable amount of Si NPs with diameters of ∼50 nm. The MWCNT-embedded Si NP film electrodes showed improved cycling performance. These high electrochemical performances were ascribed to the roles of MWCNTs providing an efficient electron-transport path and alleviating severe volume change of Si NPs occurring during Li-alloying/de-alloying process.

Original languageEnglish
Pages (from-to)1732-1736
Number of pages5
JournalMaterials Research Bulletin
Volume48
Issue number4
DOIs
Publication statusPublished - 2013 Apr

Keywords

  • A. Nanostructures
  • B. Vapor deposition
  • D. Electrochemical properties
  • D. Energy storage

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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