Ce-doped LiNi1/3Co(1/3?em class="a-plus-plus">x/3)Mn1/3Ce x/3O2
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  • 作者：YingJie Zhang (1) (2)
    ShuBiao Xia (1) (3)
    YanNan Zhang (1)
    Peng Dong (1)
    YuXing Yan (1) (3)
    RuiMing Yang (1) (3)
  • 关键词：lithium ion batteries ; cathode materials ; LiNi1/3Co1/3Mn1/3O2
  • 刊名：Chinese Science Bulletin
  • 出版年：2012
  • 出版时间：November 2012
  • 年：2012
  • 卷：57
  • 期：32
  • 页码：4181-4187
  • 全文大小：1195KB
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  • 作者单位：YingJie Zhang (1) (2)
    ShuBiao Xia (1) (3)
    YanNan Zhang (1)
    Peng Dong (1)
    YuXing Yan (1) (3)
    RuiMing Yang (1) (3)

    1. Faculty of Material Science and Engineering, Kunming University of Science and Technology, Kunming, 650093, China
    2. Key Laboratory of Ethnic Medicine Resource Chemistry, State Ethnic Affairs Commission & Ministry of Education, Yunnan University of Nationalities, Kunming, 650031, China
    3. Faculty of Chemistry & Chemical Engineering, Qujing Normal University, Qujing, 655011, China
  • ISSN：1861-9541
文摘
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.
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