Chinese Science Bulletin

, Volume 57, Issue 32, pp 4181–4187

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

Authors

  • YingJie Zhang
    • Faculty of Material Science and EngineeringKunming University of Science and Technology
    • Key Laboratory of Ethnic Medicine Resource Chemistry, State Ethnic Affairs Commission & Ministry of EducationYunnan University of Nationalities
    • Faculty of Material Science and EngineeringKunming University of Science and Technology
    • Faculty of Chemistry & Chemical EngineeringQujing Normal University
  • YanNan Zhang
    • Faculty of Material Science and EngineeringKunming University of Science and Technology
  • Peng Dong
    • Faculty of Material Science and EngineeringKunming University of Science and Technology
  • YuXing Yan
    • Faculty of Material Science and EngineeringKunming University of Science and Technology
    • Faculty of Chemistry & Chemical EngineeringQujing Normal University
  • RuiMing Yang
    • Faculty of Material Science and EngineeringKunming University of Science and Technology
    • Faculty of Chemistry & Chemical EngineeringQujing Normal University
Open AccessArticle Special Issue: New Energy Materials

DOI: 10.1007/s11434-012-5417-3

Cite this article as:
Zhang, Y., Xia, S., Zhang, Y. et al. Chin. Sci. Bull. (2012) 57: 4181. doi:10.1007/s11434-012-5417-3

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

Copyright information

© The Author(s) 2012