Tao Li, Weihua Qiu, Hailei Zhao,  and Jingjing Liu, Electrochemical properties of spinel LiMn2O4 and LiAl0.1Mn1.9O3.9F0.1 synthesized by solid-state reaction, J. Univ. Sci. Technol. Beijing, 15(2008), No. 2, pp. 187-191. https://doi.org/10.1016/S1005-8850(08)60036-5
Cite this article as:
Tao Li, Weihua Qiu, Hailei Zhao,  and Jingjing Liu, Electrochemical properties of spinel LiMn2O4 and LiAl0.1Mn1.9O3.9F0.1 synthesized by solid-state reaction, J. Univ. Sci. Technol. Beijing, 15(2008), No. 2, pp. 187-191. https://doi.org/10.1016/S1005-8850(08)60036-5
Materials

Electrochemical properties of spinel LiMn2O4 and LiAl0.1Mn1.9O3.9F0.1 synthesized by solid-state reaction

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  • Corresponding author:

    Tao Li    E-mail: taolyking@163.com

  • Received: 8 May 2007
  • Two types of spinel cathode powders, LiMn2O4 and LiAl0.1Mn1.9O3.9F0.1, were synthesized by solid-state reaction, X-ray diffraction (XRD) patterns of the prepared samples were identified as the spinel structure with a space group of Fd3m. The cubic lattice parameter was determined from least-squares fitting of the XRD data. The LiAl0.1Mn1.9O3.9F0.1 sample showed a little lower initial capacity, but better cycling performance than the LiMn2O4 sample at both room temperature and an elevated temperature. The Vanderbilt method was used to test the electrochemical conductivity of the LiMn2O4 samples. The electrochemical impedance spectroscopy (EIS) method was employed to investigate the electrochemical properties of these spinel LiMn2O4 samples.
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