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Characterizations on the structural and electronic properties of thermal lithiated Li0.33MnO2

Wei, Y. J. ; Ehrenberg, Helmut ; Kim, K. B. ; Park, C. B. ; Huang, Z. F. ; Baehtz, Carsten (2009)
Characterizations on the structural and electronic properties of thermal lithiated Li0.33MnO2.
In: Journal of Alloys and Compounds, 470 (1-2)
doi: 10.1016/j.jallcom.2008.02.036
Artikel, Bibliographie

Kurzbeschreibung (Abstract)

A 3 V cathode material for lithium ion batteries, Li0.33MnO2, was synthesized by solid-state reaction. Two Mn crystallographic positions, Mn(1) and Mn(2), were determined by X-ray diffraction analysis. The [Mn(2)O6] octahedron had a lower symmetrical degree than that of [Mn(1)O6], which was attributed to the geometrical effects of the non-symmetrical environment around Mn(2). Li0.33MnO2 delivered a reversible discharge capacity not, vert, similar140 mA h g−1. In situ synchrotron diffraction clearly showed a reversible phase transition of Li0.33MnO2 during electrochemical process. The analysis of X-ray absorption near edge spectroscopy observed the conversion of Mn4+ to Mn3+ with Li+ intercalation into Li0.33MnO2, accompanied by the formation of more severely distorted [MnO6]

Typ des Eintrags: Artikel
Erschienen: 2009
Autor(en): Wei, Y. J. ; Ehrenberg, Helmut ; Kim, K. B. ; Park, C. B. ; Huang, Z. F. ; Baehtz, Carsten
Art des Eintrags: Bibliographie
Titel: Characterizations on the structural and electronic properties of thermal lithiated Li0.33MnO2
Sprache: Englisch
Publikationsjahr: Februar 2009
Titel der Zeitschrift, Zeitung oder Schriftenreihe: Journal of Alloys and Compounds
Jahrgang/Volume einer Zeitschrift: 470
(Heft-)Nummer: 1-2
DOI: 10.1016/j.jallcom.2008.02.036
Kurzbeschreibung (Abstract):

A 3 V cathode material for lithium ion batteries, Li0.33MnO2, was synthesized by solid-state reaction. Two Mn crystallographic positions, Mn(1) and Mn(2), were determined by X-ray diffraction analysis. The [Mn(2)O6] octahedron had a lower symmetrical degree than that of [Mn(1)O6], which was attributed to the geometrical effects of the non-symmetrical environment around Mn(2). Li0.33MnO2 delivered a reversible discharge capacity not, vert, similar140 mA h g−1. In situ synchrotron diffraction clearly showed a reversible phase transition of Li0.33MnO2 during electrochemical process. The analysis of X-ray absorption near edge spectroscopy observed the conversion of Mn4+ to Mn3+ with Li+ intercalation into Li0.33MnO2, accompanied by the formation of more severely distorted [MnO6]

Freie Schlagworte: Lithium battery; Electrode materials; Crystal structure; Electronic property
Zusätzliche Informationen:

SFB 595 B4

Fachbereich(e)/-gebiet(e): DFG-Sonderforschungsbereiche (inkl. Transregio) > Sonderforschungsbereiche > SFB 595: Elektrische Ermüdung > B - Charakterisierung > Teilprojekt B4: In situ Untersuchungen der Degradation von Interkalationsbatterien und deren Modellierung
DFG-Sonderforschungsbereiche (inkl. Transregio) > Sonderforschungsbereiche > SFB 595: Elektrische Ermüdung > B - Charakterisierung
DFG-Sonderforschungsbereiche (inkl. Transregio) > Sonderforschungsbereiche > SFB 595: Elektrische Ermüdung
Zentrale Einrichtungen
DFG-Sonderforschungsbereiche (inkl. Transregio) > Sonderforschungsbereiche
DFG-Sonderforschungsbereiche (inkl. Transregio)
Hinterlegungsdatum: 15 Aug 2011 10:40
Letzte Änderung: 05 Mär 2013 09:51
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