Study of the Electrode/Electrolyte Interface on Cycling of a Conversion Type Electrode Material in Li Batteries - Université de Nantes Accéder directement au contenu
Article Dans Une Revue Journal of Physical Chemistry C Année : 2013

Study of the Electrode/Electrolyte Interface on Cycling of a Conversion Type Electrode Material in Li Batteries

Nicolas Dupre

Résumé

Previous work demonstrated that TiSnSb is a promising negative electrode material with high electrochemical performance due to the benefit of conversion type reaction vs Li. At low potentials, the volumetric change upon cycling entails electrolyte degradation which remains the main factor limiting the cycling life of TiSnSb based electrodes. To further improve the understanding of the formation of a solid electrolyte interphase (SEI) in the presence of alkyl carbonate based electrolytes and of its evolution upon cycling, powerful surface characterization techniques are combined for studying the electrode/electrolyte interface of TiSnSb composite electrodes. Electrochemical impedance spectroscopy is used for monitoring in situ the resistivity of the SEI, while XPS and solid state NMR spectroscopy can provide useful information on the SEI chemical composition and its evolution during cycling.

Domaines

Matériaux
Fichier non déposé

Dates et versions

hal-00915083 , version 1 (06-12-2013)

Identifiants

Citer

C. Marino, Ali Darwiche, Nicolas Dupre, Henri Wilhelm, Bernard Lestriez, et al.. Study of the Electrode/Electrolyte Interface on Cycling of a Conversion Type Electrode Material in Li Batteries. Journal of Physical Chemistry C, 2013, 117, pp.19302−19313. ⟨10.1021/jp402973h⟩. ⟨hal-00915083⟩
273 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More