Layered manganese oxide with O2 structure, Li(2/3)+x(Ni1/3Mn2/3)O2 as cathode for Li-ion batteries

被引:40
作者
Shaju, KM [1 ]
Rao, GVS [1 ]
Chowdari, BVR [1 ]
机构
[1] Natl Univ Singapore, Dept Phys, Singapore 119260, Singapore
关键词
Li-ion batteries; O-2-phase; cathode material;
D O I
10.1016/S1388-2481(02)00392-2
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
Using LiI as the reducing agent, the compound O2-Li(2/3)+x (Ni1/3Mn2/3)O-2, x similar to 1/3 (O2(Li+x)) has been prepared from the O2-Li-2/3 (Ni1/3Mn2/3)O-2 (O2(Li)). Cyclic voltammetry and voltage-capacity profiles of the O2(Li+x) phase are qualitatively different from that of O2(Li) phase. The first extraction capacity of O2(Li +x) at C/10 rate is 190 mAh/g corresponding to the removal of 2/3 mole of Li from the compound. At C/5 rate it delivers a reversible capacity of 158 mAh/g at 25 C and 184 mAh/g at 50 C (vs Li metal; voltage window 2.5-4.6 V). In Li-ion cells, with MCMB anode and O2(Li + x) as cathode, a discharge capacity of 140 mAh/g was obtained at C/5 rate in the voltage window 2.5-4.5 V (25 degreesC). The charge-discharge cycling performance and the cyclic voltammograms reveal that O2(Li) and O2(Li + x) do not convert to the spinel structure. (C) 2002 Published by Elsevier Science B.V.
引用
收藏
页码:633 / 638
页数:6
相关论文
共 27 条
  • [1] A new three-volt spinel Li1+xMn1.5Ni0.5O4 for secondary lithium batteries
    Amine, K
    Tukamoto, H
    Yasuda, H
    Fujita, Y
    [J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1996, 143 (05) : 1607 - 1613
  • [2] Synthesis of layered LiMnO2 as an electrode for rechargeable lithium batteries
    Armstrong, AR
    Bruce, PG
    [J]. NATURE, 1996, 381 (6582) : 499 - 500
  • [3] Armstrong AR, 1998, CHEM COMMUN, P1833
  • [4] On the metastable O2-type LiCoO2
    Carlier, D
    Saadoune, I
    Croguennec, L
    Ménétrier, M
    Suard, E
    Delmas, C
    [J]. SOLID STATE IONICS, 2001, 144 (3-4) : 263 - 276
  • [5] High capacity, temperature-stable lithium aluminum manganese oxide cathodes for rechargeable batteries
    Chiang, YM
    Sadoway, DR
    Jang, YI
    Huang, BY
    Wang, HF
    [J]. ELECTROCHEMICAL AND SOLID STATE LETTERS, 1999, 2 (03) : 107 - 110
  • [6] The role of Li2MO2 structures (M=metal ion) in the electrochemistry of (x)LiMn0.5Ni0.5O2 • (1-x)Li2TiO3 electrodes for lithium-ion batteries
    Johnson, CS
    Kim, JS
    Kropf, AJ
    Kahaian, AJ
    Vaughey, JT
    Thackeray, MM
    [J]. ELECTROCHEMISTRY COMMUNICATIONS, 2002, 4 (06) : 492 - 498
  • [7] Layered Li-Co-Mn oxide as a high-voltage positive electrode material for lithium batteries
    Kajiyama, A
    Takada, K
    Inada, T
    Kouguchi, M
    Kondo, S
    Watanabe, M
    [J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2001, 148 (09) : A981 - A983
  • [8] Layered xLiMO2 • (1-x)Li2M′O3 electrodes for lithium batteries:: a study of 0.95LiMn0.5Ni0.5O2 • 0.05Li2TiO3
    Kim, JS
    Johnson, CS
    Thackeray, MM
    [J]. ELECTROCHEMISTRY COMMUNICATIONS, 2002, 4 (03) : 205 - 209
  • [9] Layered cathode materials Li[NixLi(1/3-2x/3)Mn(2/3-x/3)]O2 for lithium-ion batteries
    Lu, ZH
    MacNeil, DD
    Dahn, JR
    [J]. ELECTROCHEMICAL AND SOLID STATE LETTERS, 2001, 4 (11) : A191 - A194
  • [10] Layered Li[NixCo1-2xMnx]O2 cathode materials for lithium-ion batteries
    Lu, ZH
    MacNeil, DD
    Dahn, JR
    [J]. ELECTROCHEMICAL AND SOLID STATE LETTERS, 2001, 4 (12) : A200 - A203