Chinese Science Bulletin

, Volume 57, Issue 32, pp 4181–4187

Ce-doped LiNi1/3Co(1/3−x/3)Mn1/3Cex/3O2 cathode materials for use in lithium ion batteries

  • YingJie Zhang
  • ShuBiao Xia
  • YanNan Zhang
  • Peng Dong
  • YuXing Yan
  • RuiMing Yang
Open Access
Article Special Issue: New Energy Materials

Abstract

LiNi1/3Co1/3Mn1/3O2 and Ce-doped LiNi1/3Co1/3Mn1/3O2 cathode materials were synthesized by a co-precipitation method and solid phase synthesis and characterized using X-ray diffraction (XRD) and scanning electron microscopy (SEM). The results indicated that the resultant cathode materials with different Ce content all had a good layer structure and high crystallinity. Electrochemical performance testing of the cathode materials showed that the discharge capacity increased with increasing Ce content while the initial reversible capacity attenuation decreased with Ce doping. When the Ce content of the cathode materials is x=0.2, and the current charge and discharge rate is a constant 0.2 C, the discharge capacity maintained 91% of its initial capacity after cycling 50 times.

Keywords

lithium ion batteries cathode materials LiNi1/3Co1/3Mn1/3O2 

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Copyright information

© The Author(s) 2012

Authors and Affiliations

  • YingJie Zhang
    • 1
    • 2
  • ShuBiao Xia
    • 1
    • 3
  • YanNan Zhang
    • 1
  • Peng Dong
    • 1
  • YuXing Yan
    • 1
    • 3
  • RuiMing Yang
    • 1
    • 3
  1. 1.Faculty of Material Science and EngineeringKunming University of Science and TechnologyKunmingChina
  2. 2.Key Laboratory of Ethnic Medicine Resource Chemistry, State Ethnic Affairs Commission & Ministry of EducationYunnan University of NationalitiesKunmingChina
  3. 3.Faculty of Chemistry & Chemical EngineeringQujing Normal UniversityQujingChina

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