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
  • [1] Structure and electrochemical characteristics of LiMn0.7M0.3O2 (M=Ti, V, Zn, Mo, Co, Mg, Cr)
    Guo, Z.P. (zg04@uow.edu.au), 1600, Elsevier Ltd (348): : 1 - 2
  • [2] Structure and bulk modulus of M2AlC (M=Ti, V, and Cr)
    Sun, ZM
    Ahuja, R
    Li, S
    Schneider, JM
    APPLIED PHYSICS LETTERS, 2003, 83 (05) : 899 - 901
  • [3] Preparation and characterization of LiNi0.7Co0.2Ti0.05M0.05O2 (M=Mg, Al and Zn) systems as cathode materials for lithium batteries
    Subramanian, V
    Fey, GTK
    SOLID STATE IONICS, 2002, 148 (3-4) : 351 - 358
  • [4] Subsolidus of the MO-Cr2O3-V2O5 systems, where M = Ni, Mg
    Rychlowska-Himmel, I.
    Bosacka, M.
    JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 2007, 68 (5-6) : 1193 - 1197
  • [5] Electrical characteristics of Li2MM′3O8, (M=Mg, Zn; M′=Ti, Sn)
    Trendafilova, T.
    Ivanova, K.
    Kovacheva, D.
    JOURNAL OF OPTOELECTRONICS AND ADVANCED MATERIALS, 2007, 9 (02): : 271 - 274
  • [6] Characteristics of Mg2Ni0.75M0.25 (M=Ti, Cr, Mn, Fe, Co, Ni, Cu and Zn) alloys after surface treatment
    Yang, HB
    Yuan, HT
    Ji, JT
    Sun, H
    Zhou, ZX
    Zhang, YS
    JOURNAL OF ALLOYS AND COMPOUNDS, 2002, 330 : 640 - 644
  • [7] Phase equilibria of the MO-CoO-V2O5 (M = Mg, Zn, Cd) systems
    Surat, LL
    RUSSIAN JOURNAL OF INORGANIC CHEMISTRY, 2002, 47 (05) : 735 - 739
  • [8] STRUCTURE OF M(HCOO)2.2(NH2)2CO - M=MG,CO,ZN
    YAMAGATA, K
    KOYANO, N
    RIDWAN
    ACHIWA, N
    FUJINO, M
    JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1992, 104 : 849 - 850
  • [9] Electronic structure of M2AlC(0001) surfaces (M = Ti, V, Cr)
    Music, Denis
    Sun, Zhimei
    Ahuja, Rajeev
    Schneider, Jochen M.
    JOURNAL OF PHYSICS-CONDENSED MATTER, 2006, 18 (39) : 8877 - 8881
  • [10] Synthesis and properties of Na0.55Co0.9M0.1O2 (M = Sc, Ti, Cr–Zn, Mo, W, Pb, Bi) solid solutions
    A. I. Klyndyuk
    N. S. Krasutskaya
    E. A. Chizhova
    L. E. Evseeva
    S. A. Tanaeva
    Glass Physics and Chemistry, 2016, 42 : 100 - 107
12345