Structure and electrochemical characteristics of LiMn0.7M0.3O2 (M = Ti, V, Zn, Mo, Co, Mg, Cr)

被引：26
|
作者：
Guo, ZP [1 ]
Zhong, S [1 ]
Wang, GX [1 ]
Liu, HK [1 ]
Dou, SX [1 ]
机构：
[1] Univ Wollongong, Inst Superconducting & Elect Mat, Wollongong, NSW 2522, Australia
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2003年 / 348卷 / 1-2期
关键词：
energy storage materials; electrode materials; chemical synthesis; electrochemical reactions; X-ray diffraction;
D O I：
10.1016/S0925-8388(02)00805-8
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
A series of compounds LiMn0.7M0.3O2 (M=Ti,V, Zn, Mg, Mo, Co, Cr) with different doping elements were synthesized. It was found that the ionic size of the doping elements is not a discriminating factor in the structure of LiMn0.7M0.3O2 compounds. The LiMn0.7M0.3O2 (M=Cr, Zn, Mg,V) forms in the hexagonal structure, while the LiMn0.7M0.3O2 (M=Co, Ti, Mo) shows an orthorhombic structure. The LiMn0.7M0.3O2 compounds have less crystal distortion compared with o(orthorhombic)-LiMnO2. All substituted materials cycled between 4.4 and 2 V in Li cells show higher stability of capacity compared with the standard o-LiMnO2. AC impedance analysis results show that the charge transfer process and lithium ion diffusion process for doped LiMnO2 compounds are better than that for un-substituted compounds. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：231 / 235
页数：5
相关论文
共 50 条
  • [31] MO,50NBSE2 PHASES (WHERE M= TI, V, CR) AND STRUCTURE OF CRO,50NBSE2
    MEERSCHAUT, A
    ROUXEL, J
    COMPTES RENDUS HEBDOMADAIRES DES SEANCES DE L ACADEMIE DES SCIENCES SERIE C, 1973, 277 (03): : 163 - 166
  • [32] STRUCTURE AND MAGNETIZATION STUDIES OF TI-SUBSTITUTED NI0.3ZN0.7FE2O4
    KHAN, DC
    MISRA, M
    DAS, AR
    JOURNAL OF APPLIED PHYSICS, 1982, 53 (03) : 2722 - 2724
  • [33] NEW SANDWICH COMPLEXES CONTAINING 6,6-DIMETHYLCYCLOHEXADIENYL (DMCH) (DMCH)2M (M = TI, V, CR, FE) AND (DMCH)2M-CO (M = TI, V)
    DIMAURO, PT
    WOLCZANSKI, PT
    ORGANOMETALLICS, 1987, 6 (09) : 1947 - 1954
  • [34] Electronic structure of Ti-48Al-2M1-2M2 (M1 = Nb, V; M2 = Mn, Cr, V) alloys
    Huang, ZX
    Guo, HX
    Zhou, LX
    Li, JQ
    CHINESE JOURNAL OF STRUCTURAL CHEMISTRY, 2002, 21 (03) : 331 - 335
  • [35] The Er-{Fe,Co}-{Ti,V} systems and hydrogenation properties of the ErFe2-xMx (M = Ti, V, Cr, Mn, Co, Ni, Cu, Mo) alloys
    Kotur, B.
    Myakush, O.
    Zavahy, I.
    JOURNAL OF ALLOYS AND COMPOUNDS, 2007, 442 (1-2) : 17 - 21
  • [36] Syntheses and Characterization of a Family of Vanadate Compounds Ba3M(V2O7)2 (M = Co, Mn, Mg, or Zn) with an Edge-Shared [M2O10] Dimer Structure
    Wang, Nannan
    He, Zhangzhen
    Cui, Meiyan
    Guo, Wenbin
    Zhang, Suyun
    Yang, Ming
    CRYSTAL GROWTH & DESIGN, 2015, 15 (04) : 1619 - 1624
  • [37] Effects of substitutions M on the formation, structure and magnetic properties of Sm2Fe15M2C2 (M = V, Cr, Ti, Nb, Zr, Mn and Mo) compounds
    Chen, Zhongmin
    Hadjipanayis, G.C.
    Daniel, M.
    Digas, M.
    Moukarika, A.
    Papaefthymiou, V.
    Journal of Magnetism and Magnetic Materials, 1998, 177-181 (Pt 2): : 1109 - 1110
  • [38] Effects of substitutions M on the formation, structure and magnetic properties of Sm2Fe15M2C2 (M = V, Cr, Ti, Nb, Zr, Mn and Mo) compounds
    Chen, ZM
    Hadjipanayis, GC
    Daniel, M
    Digas, M
    Moukarika, A
    Papaefthymiou, V
    JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1998, 177 : 1109 - 1110
  • [39] Electrochemical oxidation of 4-chlorophenol and its by-products using Ti/Ru0.3M0.7O2 (M = Ti or Sn) anodes: preparation route versus degradation efficiency
    R. D. Coteiro
    A. R. De Andrade
    Journal of Applied Electrochemistry, 2007, 37 : 691 - 698
  • [40] Electrochemical oxidation of 4-chlorophenol and its by-products using Ti/Ru0.3M0.7O2 (M = Ti or Sn) anodes:: preparation route versus degradation efficiency
    Coteiro, R. D.
    De Andrade, A. R.
    JOURNAL OF APPLIED ELECTROCHEMISTRY, 2007, 37 (06) : 691 - 698
12345