Preparation and electrochemical characterization of nanocrystalline Li[Li0.12Ni0.32Mn0.56]O2 pyrolyzed from polyacrylate salts

被引:6
作者
Yu, LH [1 ]
Cao, YL [1 ]
Yang, HX [1 ]
Ai, XP [1 ]
Ren, YY [1 ]
机构
[1] Wuhan Univ, Dept Chem, Wuhan 430072, Peoples R China
关键词
cathode material; layered compound; lithium-ion battery;
D O I
10.1016/j.matchemphys.2004.07.023
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
A nanocrystalline Li[Li0.12Ni0.32Mn0.56]O-2 powder was synthesized by a pyrolysis method using polyacrylate salts as the precursor compounds. XRD and TEM results demonstrated that the Li[Li0.12Ni0.32Mn0.56]O-2 powder has a layered structure as alpha-NaFeO2 and has an average particle size of 50-70 nm. The charge-discharge experiments show that the Li[Li0.12Ni0.32Mn0.56]O-2 electrode can deliver a reversible, capacity of similar to140mA h g(-1) cycling at 2.5-4.5 V and can still remain 94% of its initial capacity after 10 cycles, showing a great promise for future applications. (C) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码:353 / 356
页数:4
相关论文
共 22 条
  • [1] Formation and structural properties of layered LiMnO2 cathode materials
    Ammundsen, B
    Desilvestro, J
    Groutso, T
    Hassell, D
    Metson, JB
    Regan, E
    Steiner, R
    Pickering, PJ
    [J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2000, 147 (11) : 4078 - 4082
  • [2] Ammundsen B, 2001, ADV MATER, V13, P943, DOI 10.1002/1521-4095(200107)13:12/13<943::AID-ADMA943>3.0.CO
  • [3] 2-J
  • [4] AMMUNDSEN B, 2000, P 10 INTL M LITH BAT
  • [5] Synthesis of layered LiMnO2 as an electrode for rechargeable lithium batteries
    Armstrong, AR
    Bruce, PG
    [J]. NATURE, 1996, 381 (6582) : 499 - 500
  • [6] Armstrong AR, 1998, CHEM COMMUN, P1833
  • [7] CHARACTERIZATION OF LT-LIXCO1-YNIYO2 ELECTRODES FOR RECHARGEABLE LITHIUM CELLS
    GUMMOW, RJ
    THACKERAY, MM
    [J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1993, 140 (12) : 3365 - 3368
  • [8] Synthesis and electrochemical properties of nanocrystalline Li[Ni0.20Li0.20Mn0.60]O2
    Hong, YS
    Park, YJ
    Wu, XL
    Ryu, KS
    Chang, SH
    [J]. ELECTROCHEMICAL AND SOLID STATE LETTERS, 2003, 6 (08) : A166 - A169
  • [9] Jang YI, 1998, ELECTROCHEM SOLID ST, V1, P13, DOI 10.1149/1.1390619
  • [10] Electrochemical performance of Li[LixNi(1-3x)/2Mn(1+x)/2]O2 cathode materials synthesized by a sol-gel method
    Kim, JH
    Sun, YK
    [J]. JOURNAL OF POWER SOURCES, 2003, 119 : 166 - 170