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Leroux, F. & Guyomard, D. (2006) Li interaction into a phyllomanganate of Rancieite type: Electrochemical behavior and XAS study. J. Phys. Chem. Solids, 67 1303–1307. 
Added by: Florent Boucher (2016-05-12 13:21:37)
Type de référence: Article
DOI: 10.1016/j.jpcs.2006.01.062
Numéro d'identification (ISBN etc.): 0022-3697
Clé BibTeX: Leroux2006
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Catégories: ST2E
Mots-clés: acid, alkali-exchanged derivatives, batteries, birnessite, dioxide, Electrochemical properties, kmno4, layered mno2, lithium intercalation, Manganese oxide, Oxides, sol-gel synthesis, xafs
Créateurs: Guyomard, Leroux
Collection: J. Phys. Chem. Solids
Consultations : 4/279
Indice de consultation : 1%
Indice de popularité : 0.25%
Résumé     
The present study deals with a layered lithiated manganese oxide belonging to the Rancieite structural type. The Li insertion mechanism and its reversibility, the origin of capacity limitation at high rate and the origin of capacity fading upon cycling are investigated with help of electrochemical studies and XAS experiments. It is shown that Li ions can be extracted in charge and can be used as an additional Li source to compensate the fading upon cycling. The good reversibility is explained on the basis of a reversible change of the local order around the Mn cations during the discharge and charge processes. The capacity fading upon cycling is coming from the partial blocking of the Li intercalation site. (c) 2006 Elsevier Ltd. All rights reserved.
Added by: Florent Boucher  
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