Electrochemical characterization of LixNiyCO1-yO2 electrodes in a 1 M LiPF6 solution of the ethylene carbonate-diethyl carbonate

被引：37
作者：
Fey, GTK [1 ]
Yo, WH
Chang, YC
机构：
[1] Natl Cent Univ, Dept Chem Engn, Chungli 320, Taiwan
[2] Tamkang Univ, Dept Chem Engn, Tamsui 251, Taiwan
来源：
JOURNAL OF POWER SOURCES | 2002年 / 105卷 / 01期
关键词：
lithium intercalation/deintercalation; LixNiyCo1-yO2; EIS; SSCV; mixed oxide cathode;
D O I：
10.1016/S0378-7753(01)00967-3
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：
The electrochemical characteristics of LixNixCo1-xO2 (0.5 < y < 0.9) prepared by a co-precipitation method were reported. Slow scan cyclic voltammetry (SSCV) and electrochemical impedance spectroscopy (EIS) were used to investigate the kinetic behavior of the composite electrodes. Kinetic data such as the Tafel slope and the charge-transfer resistance were determined based on the experimental results. An equivalent circuit model was proposed to simulate the impedance spectra and gave a good data fit. The present study also demonstrated that the kinetic data were composition-sensitive to varying lithium content and nickel content in the mixed oxide electrodes. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：82 / 86
页数：5
相关论文
共 23 条
  • [1] Common electroanalytical behavior of Li intercalation processes into graphite and transition metal oxides
    Aurbach, D
    Levi, MD
    Levi, E
    Teller, H
    Markovsky, B
    Salitra, G
    Heider, U
    Heider, L
    [J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1998, 145 (09) : 3024 - 3034
  • [2] COBALT STABILIZED LAYERED LITHIUM-NICKEL OXIDES, CATHODES IN LITHIUM RECHARGEABLE CELLS
    BANOV, B
    BOURILKOV, J
    MLADENOV, M
    [J]. JOURNAL OF POWER SOURCES, 1995, 54 (02) : 268 - 270
  • [3] Structural instability of delithiated Li1-xNi1-yCoyO2 cathodes
    Chebiam, RV
    Prado, F
    Manthiram, A
    [J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2001, 148 (01) : A49 - A53
  • [4] Electrochemical properties and thermal stability of LiaNi1-xCoxO2 cathode materials
    Cho, JP
    Jung, HS
    Park, YC
    Kim, GB
    Lim, HS
    [J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2000, 147 (01) : 15 - 20
  • [5] Effects of intercalation-induced stress on lithium transport through porous LiCoO2 electrode
    Choi, YM
    Pyun, SI
    [J]. SOLID STATE IONICS, 1997, 99 (3-4) : 173 - 183
  • [6] A study of the electrochemical lithium intercalation behavior of porous LiNiO2 electrodes prepared by solid-state reaction and sol-gel methods
    Choi, YM
    Pyun, SI
    Moon, SI
    Hyung, YE
    [J]. JOURNAL OF POWER SOURCES, 1998, 72 (01) : 83 - 90
  • [7] CHOI YM, 1995, J POWER SOURCES, V56, P25, DOI 10.1016/0378-7753(95)80004-Z
  • [8] Effects of cation mixing on the electrochemical lithium intercalation reaction into porous Li1-delta Ni1-yCoyO2 electrodes
    Choi, YM
    Pyun, SI
    Moon, SI
    [J]. SOLID STATE IONICS, 1996, 89 (1-2) : 43 - 52
  • [9] An electrochemical impedance spectroscopic study of the transport properties of LiNi0.75Co0.25O2
    Croce, F
    Nobili, F
    Deptula, A
    Lada, W
    Tossici, R
    D'Epifanio, A
    Scrosati, B
    Marassi, R
    [J]. ELECTROCHEMISTRY COMMUNICATIONS, 1999, 1 (12) : 605 - 608
  • [10] THERMAL-STABILITY OF LIXCOO2, LIXNIO2 AND LAMBDA-MNO2 AND CONSEQUENCES FOR THE SAFETY OF LI-ION CELLS
    DAHN, JR
    FULLER, EW
    OBROVAC, M
    VONSACKEN, U
    [J]. SOLID STATE IONICS, 1994, 69 (3-4) : 265 - 270
123