Mesoporous silicon anodes prepared by magnesiothermic reduction for lithium ion batteries

Wei Chen*, Zhongli Fan, Abirami Dhanabalan, Chunhui Chen, Chunlei Wang

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

115 Scopus citations

Abstract

Porous Si prepared by the magnesiothermic reaction was used as anode material for lithium ion batteries. The synthesis conditions were investigated to obtain high purity of silicon phase. The structures of porous Si were characterized by TEM, Raman and N2 adsorption-desorption. The electrochemical performance was tested by cyclic voltammetry (CV) and discharge-charge measurement. The porous Si exhibits larger storage capacity and improved cyclability compared to commercial Si powders. The enhanced capacity and cyclability are attributed to the loose mesoporous structure of porous Si, which can accommodate large volume change in the lithiation/delithiation process.

Original languageEnglish (US)
Pages (from-to)A1055-A1059
JournalJOURNAL OF THE ELECTROCHEMICAL SOCIETY
Volume158
Issue number9
DOIs
StatePublished - 2011

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Materials Chemistry
  • Surfaces, Coatings and Films
  • Electrochemistry
  • Renewable Energy, Sustainability and the Environment

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