Hollow lithiated metal oxide particles as lithium-ion battery cathode materials

Gary M. Koenig, Ilias Belharouak, Huiming M. Wu, Khalil Amine

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

We report the synthesis and characterization of the hollow micrometer-sized (Mn0.5Ni0.4Co0.1)CO3 precursor, and one of its promising lithium-enriched phases. The chemical composition of the resulting lithiated final material was Li1.2(Mn0.5Ni 0.4Co0.1)O2+y. Lithium half cells with cathodes comprised of these hollow particles as the active intercalation material showed a reversible capacity of 183 mAh/g when cycled between 2.0 V and 4.6 V. X-ray diffraction patterns and the electrochemical data of Li1.2(Mn 0.5Ni0.4Co0.1)O2+y were consistent with the existence of the Li2MnO3-type integrated component that was activated during the initial charging of the cells. The results presented herein demonstrate a method to synthesize multicomponent, multiphase materials with hollow internal morphologies that can reversibly and stably be cycled with high gravimetric capacities as the active cathode material in lithium-ion batteries.

Original languageEnglish
Pages (from-to)1426-1431
Number of pages6
JournalElectrochimica Acta
Volume56
Issue number3
DOIs
Publication statusPublished - 1 Jan 2011
Externally publishedYes

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Keywords

  • Co-precipitation
  • Li(MnNiCo)O
  • LiMnO
  • Lithium-ion electrodes
  • Multicomponent composites

ASJC Scopus subject areas

  • Electrochemistry
  • Chemical Engineering(all)

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