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Vibrational studies of spinel LixMn2O4 (0.3≤x≤1.0) cathodes

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Abstract

We report on the vibrational properties of spinel LiMn2O4 and its electrochemically delithiated forms LixMn2O4. Raman scattering and infrared absorption spectra have been studied as a function of the delithiation content in the wavenumber range 50–700 cm−1. Results show that lithium ions can be extracted at room temperature to obtain Lix[Mn2]O4 (0.3≤x≤1.0) without disrupting the [Mn2]O4 array. The normal modes of the spinel LiMn2O4 have been discussed in the O 7h symmetry and vibrations due to lithium ions with their oxygen neighbors have been identified at ca. 400 cm−1.

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Authors and Affiliations

  1. Lab. de Physique des Solides, Université Pierre et Marie Curie, 75252, Paris Cedex 05, France

    C. Julien & C. Perez-Vicente

  2. Physical Chemistry Dept., GM R&D Center, 33900 Mount Road, 48090, Warren, MI, USA

    G. A. Nazri

Authors
  1. C. Julien
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  2. C. Perez-Vicente
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  3. G. A. Nazri
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Julien, C., Perez-Vicente, C. & Nazri, G.A. Vibrational studies of spinel LixMn2O4 (0.3≤x≤1.0) cathodes. Ionics 2, 468–473 (1996). https://doi.org/10.1007/BF02375829

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  • DOI: https://doi.org/10.1007/BF02375829

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