The investigation of LiCo1-xSbxO2 as a promising cathode material for lithium-ion batteries

Jin Peng Yu, Zeng Hui Han, Xiao Hong Hu, Hui Zhan, Yun Hong Zhou, Xing Jiang Liu

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

The LiCo1-xSbxO2 (0 < x < 1) materials were prepared for the first time. Comparing with parent LiCoO 2 sample, they show improved cycleability under higher upper limit potential, better rate capability and thermal stability. XRD, SEM and particle size analysis indicate that the introduction of Sb during preparation effectively suppress the particle growth and thus the "doping" phase shows reduced particle size. Moreover, XPS measurements tell that the added Sb is enriched in the layer near the particle surface. According to these observations, it is reasonable to believe that the mechanism of the performance improvement is attributed to some coating effect for LiCo1-xSb xO2 materials.

Original languageEnglish
Pages (from-to)301-306
Number of pages6
JournalElectrochimica Acta
Volume121
DOIs
Publication statusPublished - 2014 Mar 1

Keywords

  • Cathode material
  • Coating
  • Doping
  • Lithium-ion batteries

ASJC Scopus subject areas

  • Electrochemistry
  • Chemical Engineering(all)

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