Journal
JOURNAL OF POWER SOURCES
Volume 136, Issue 1, Pages 72-79Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jpowsour.2004.05.001
Keywords
spinel; lattice dynamics; Raman spectroscopy; lithium batteries
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Raman scattering spectroscopy have been applied to the study of local structure of Li4/3Me5/3O4 (Me = Ti, Mn) spinel oxides used as electrode materials for rechargeable lithium batteries and hybrid supercapacitors. We report the analysis of their vibrational spectra using both the classical factor group analysis and a local environment model. Electrochemical performance was carried out using a lithium cell with solvent-free solid-polymer. Raman spectra of Li4/3+xMe5/3O4 spinels are compared and analyzed on the basis of structural modifications of their lattices upon lithium insertion. (C) 2004 Elsevier B.V. All rights reserved.
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