Lithiated manganese oxide Li0.33MnO2 as an electrode material for lithium batteries

Christian Julien (1) , B. Banov , A. Momchilov , K. Zaghib (2)

1 INSP - Institut des Nanosciences de Paris
2 Institut de Recherches d'Hydro-Québec

Li0.33MnO2 was prepared by solid-state reaction of CMD oxide and a lithium salt. The structure was studied by X-ray diffraction and Raman scattering during electrochemical discharging. The possibility of application as a positive electrode inrechargeable lithium batteries was investigated. The electrochemical properties of Li//Li0.33MnO2 cells were studied as a function of temperature in the range 25-55 degrees C. The electrode material delivers an initial capacity of 194 mAh g(-1) and shows good reversibility at room temperature. Finally, the lithium insertion mechanism was examined by the determination of the ion kinetics. (c) 2006 Elsevier B.V. All rights reserved.

Mots clés: lithium batteries; manganese dioxides; structural properties; diffusion coefficient

Domaines: Matière Condensée [cond-mat]

Christian Julien, B. Banov, A. Momchilov, K. Zaghib. Lithiated manganese oxide Li0.33MnO2 as an electrode material for lithium batteries. Journal of Power Sources, 2006, 159 (2), pp.1365-1369. ⟨10.1016/j.jpowsour.2005.12.011⟩. ⟨hal-01293308⟩