Preparation of TiO2-coated LiCo1/3Ni1/3Mn1/3O2 by electrostatic self-assembly method and its properties

被引:0
|
作者
Y. D. Chen
Y. Zhao
Q. Y. Lai
N. N. Wei
J. Z. Lu
X. G. Hu
X. Y. Ji
机构
[1] Sichuan University,College of Chemistry
[2] Sichuan University,Analytical and Testing Center
来源
Ionics | 2008年 / 14卷
关键词
Electrostatic self-assembly method; TiO; LiCo; Ni; Mn; O; Coating;
D O I
暂无
中图分类号
学科分类号
摘要
A precursor of TiO2–LiCo1/3Ni1/3Mn1/3O2 was prepared by electrostatic self-assembly method. The final product was obtained by heating the precursor at 400–450 °C for 4–6 h in air. X-ray diffraction (XRD), scanning electron microscope (SEM), X-ray photoelectron spectroscopy (XPS), and electrochemical tests were used to examine the structural, morphology, elementary valence, and electrochemical characteristics. XRD indicated that the TiO2-coated material can be indexed by α-NaFeO2 layered structure, which belongs to hexagonal-type space group R3m. XPS results confirmed the existence of TiO2 compound on the surface of the coated sample. The SEM image showed that the material had spherically porous morphology with the uniform size about 6 μm. The initial charge–discharge capacity of the TiO2-coated LiCo1/3Ni1/3Mn1/3O2 material was 168.8/160.0 mAh/g. After 60 cycles, the discharge capacity of the TiO2-coated LiCo1/3Ni1/3Mn1/3O2 sample was 147.0 mAh/g, and the coulombic efficiency was 94.0%. Compared with the uncoated sample, the electrochemical performance of TiO2-coated LiCo1/3Ni1/3Mn1/3O2 was improved.
引用
收藏
页码:53 / 58
页数:5
相关论文
共 50 条
  • [21] Prismatic lithium-ion batteries of LiCO1/3Ni1/3Mn1/3O2 with graphite
    Yoshizawa, H
    Ohzuku, T
    ELECTROCHEMISTRY, 2003, 71 (12) : 1177 - 1181
  • [22] 锂离子电池正极材料LiCo1/3Ni1/3Mn1/3O2
    王希敏
    王先友
    罗旭芳
    廖力
    化学进展, 2006, (12) : 1720 - 1724
  • [23] LiCo1/3Ni1/3Mn1/3O2 as cathode materials of lithium-ion battery
    Wang Ximin
    Wang Xianyou
    Luo Xufang
    Liao Li
    PROGRESS IN CHEMISTRY, 2006, 18 (12) : 1720 - 1724
  • [24] Synthesis and electrochemical characterization of layered LiCo1/3Ni1/3Mn1/3O2 cathode material
    Wei, NN
    Lai, QY
    Gao, Y
    Chen, YD
    Lu, JZ
    CHINESE JOURNAL OF INORGANIC CHEMISTRY, 2005, 21 (07) : 999 - 1003
  • [25] Synthesis and Surface Modification of LiCo1/3Ni1/3Mn1/3O2 for Lithium Battery Applications
    Ganguli Babu
    N. Kalaiselvi
    D. Bhuvaneswari
    Journal of Electronic Materials, 2014, 43 : 1062 - 1070
  • [26] Synthesis of LiCo1/3Ni1/3Mn1/3> O2> by a simple combustion method and electrochemical properties
    Hun Uk Kim
    Daniel R. Mumm
    Hye Ryoung Park
    Myoung Youp Song
    Electronic Materials Letters, 2010, 6 : 91 - 95
  • [27] Synthesis of LiCo1/3Ni1/3Mn1/3O2 as a layered cathode material prepared by the Pechini process
    Li, Zhigang
    Kang, Xueya
    Wang, Tiandiao
    Han, Ying
    MATERIALS TECHNOLOGY, 2006, 21 (04) : 229 - 232
  • [28] 湿法球磨制备LiCo1/3Mn1/3Ni1/3O2材料及表征
    谭江
    苏玉长
    方慧惠
    电源技术, 2009, 33 (11) : 966 - 969
  • [29] 层状LiCo1/3Mn1/3Ni1/3O2正极材料的Al掺杂改性
    杨欢
    胡航
    郑圣泉
    李中奇
    陈红雨
    电源技术, 2015, 39 (03) : 466 - 468+508
  • [30] Structural and electrochemical properties of LiCo1/3Ni1/3Mn1/3O2 cathode material by electrolysis of Co-Ni-Mn alloy
    Ye Mao
    Zhou Zhen
    Bian Xi-Kui
    Yan Jie
    CHINESE JOURNAL OF INORGANIC CHEMISTRY, 2006, 22 (11) : 2005 - 2010