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Cuisinier, M., Dupre, N. & Guyomard, D. (2014) Control of LiFePO4 air-aging through the use of electrolyte additive. Electrochem. Commun. 38 138–141. 
Added by: Florent Boucher (2016-04-29 09:26:45)
Type de référence: Article
DOI: 10.1016/j.elecom.2013.11.023
Numéro d'identification (ISBN etc.): 1388-2481
Clé BibTeX: Cuisinier2014
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Catégories: ST2E
Mots-clés: Additive, Cathodes, electrode/electrolyte interphase, Interface, layers, li-7 mas nmr, LiFePO4, Lithium battery, Lithium-ion batteries, positive electrodes, temperature
Créateurs: Cuisinier, Dupre, Guyomard
Collection: Electrochem. Commun.
Consultations : 7/441
Indice de consultation : 2%
Indice de popularité : 0.5%
Air-aged LiFePO4 exhibits an OH-rich surface that reacts with LiPF6 based electrolyte, leading to poor battery performance. We show that outstanding electrochemical performance is achieved when using air-aged LiFePO4 in the presence of electrolyte additive N,N-diethylamino trimethylsilane, capable of reacting with acidic impurities. Stable impedance is obtained upon cycling, and Li-7 and F-19 MAS NMR study indicates that the interphasial chemistry is governed by a surface layer coming from reacted additive. (C) 2013 Elsevier B.V. All rights reserved.
Added by: Florent Boucher  
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