Jouanneau, S., Verbaere, A., Lascaud, S. & Guyomard, D. (2006) Improvement of the lithium insertion properties of Li1.1V3O8. Solid State Ion. 177 311–315.
Added by: Florent Boucher (2016-05-12 13:21:38)
|Type de référence: Article
Numéro d'identification (ISBN etc.): 0167-2738
Clé BibTeX: Jouanneau2006
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Mots-clés: batteries, Cathode, Cyclability, insertion compound, Li battery, li1.1v3o8, liv3o8, morphology, positive electrode material, temperature, vanadium dissolution
Créateurs: Guyomard, Jouanneau, Lascaud, Verbaere
Collection: Solid State Ion.
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Two Li1.1V3O8 samples have been prepared by heating a sol-gel precursor at 350 degrees C and 650 degrees C, i.e. below and above the melting point, respectively. Their electrochemical lithium insertion behavior was investigated after different grinding treatments. This work shows the importance of grain morphology (size, size distribution and shape) and texture (agglomeration of smaller particles or not) on both initial capacity and cyclability. It also shows that the dissolution of a small quantity of V-III in the electrolyte occurs during the last process at 2.4 V, depending on the morphology of the compound studied. Such results were taken advantage of to optimize the morphology and texture of Li1.1V3O8 in order to obtain enhanced performance. (c) 2005 Elsevier B.V. All rights reserved.
Added by: Florent Boucher