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Tanguy, F., Gaubicher, J. & Guyomard, D. (2010) Operando discrimination of fast and slow active grains within a cycling electrode for lithium battery. Electrochem. Commun. 12 561–564. 
Added by: Laurent Cournède (2016-03-10 21:37:33)
Type de référence: Article
DOI: 10.1016/j.elecom.2010.01.043
Numéro d'identification (ISBN etc.): 1388-2481
Clé BibTeX: Tanguy2010a
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Catégories: ST2E
Mots-clés: capacity fade, Capacity fading, Electrochemical peak fitting, Electrolyte decomposition, insertion, ion batteries, Li battery, Operando XRD, Slow and fast grains, temperature
Créateurs: Gaubicher, Guyomard, Tanguy
Collection: Electrochem. Commun.
Consultations : 9/350
Indice de consultation : 2%
Indice de popularité : 0.5%
Résumé     
The impact of the formation of an electrolyte based decomposition layer on the distribution of the active grain kinetics has been investigated operando within a cycling electrode for lithium battery. It is demonstrated, from fitting procedure of the electrochemical responses and from operando XRD experiments, that as the passive film forms, slow reacting grains appear within the working electrode and operate simultaneously with faster grains. Slow grains are macroscopically distributed, presumably at the electrolyte side of the electrode. Discrimination of the electrochemical response pertaining to each type of grains allows rationalizing their contribution to the capacity fading dynamics. (C) 2010 Elsevier B.V. All rights reserved.
Added by: Laurent Cournède  
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