Self-assembled lithium manganese oxide nanoparticles on carbon nanotube or graphene as high-performance cathode material for lithium-ion batteries

Xin Zhao, Cary M. Hayner, Harold H. Kung

Research output: Contribution to journalArticle

49 Citations (Scopus)

Abstract

LiMn2O4-carbon composites composed of ∼7 nm LiMn2O4 nanoparticles homogeneously anchored on conducting carbon nanotubes and graphene nanosheets were fabricated via a self-assembly process combined with solid-state lithiation. Owing to improved Li diffusion kinetics achieved by the small particle size and intimate electrical contact with a porous, conducting carbon matrix, reversible capacities close to the theoretical value with enhanced power capability and cyclability were attained for these highly crystalline LiMn2O4-carbon composite cathodes. The facile self-assembly approach can be readily adapted to different carbon supports and could serve as a general synthetic strategy towards controlled fabrication of other functional hybrids for high-performance energy storage devices.

Original languageEnglish
Pages (from-to)17297-17303
Number of pages7
JournalJournal of Materials Chemistry
Volume21
Issue number43
DOIs
Publication statusPublished - Nov 21 2011

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Chemistry

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