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Le système LixNiO2 : de l'électrochimie à la cristallographie

Abstract : Lithium nickel oxide is very promising positive electrode material for rechargeable lithium batteries, particularly rocking-chair ones using a carbon negative electrode. Lithium de-intercalation process from such a host structure has been studied on the electrochemical and structural points of view. Electrochemistry has specifically been used as a local probe. The nature of the structural modifications, which occur with x in "LixNiO2" system (0.25 < x < 1.00), has been evidenced by X-ray diffraction, X-ray absorption and electronic diffraction studies of selected de-intercalated compositions. Moreover, lithium nickelate changes on long range cycling have also been studied on the textural and structural points of view.
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Submitted on : Tuesday, June 26, 2007 - 7:14:32 PM
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  • HAL Id : tel-00157729, version 1



Jean-Paul Peres. Le système LixNiO2 : de l'électrochimie à la cristallographie. Matériaux. Université Sciences et Technologies - Bordeaux I, 1996. Français. ⟨tel-00157729⟩



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