Electron paramagnetic resonance imaging ...
Type de document :
Article dans une revue scientifique
URL permanente :
Titre :
Electron paramagnetic resonance imaging for real-time monitoring of Li-ion batteries
Auteur(s) :
Sathiya, M. [Auteur]
Collège de France [CdF (institution)]
Leriche, J.-B. [Auteur]
Laboratoire réactivité et chimie des solides - UMR CNRS 7314 UPJV [LRCS]
Salager, E. [Auteur]
Conditions Extrêmes et Matériaux : Haute Température et Irradiation [CEMHTI]
Gourier, D. [Auteur]
Vezin, Herve [Auteur]
Laboratoire Avancé de Spectroscopie pour les Intéractions la Réactivité et l'Environnement - UMR 8516 [LASIRE]
Collège de France [CdF (institution)]
Leriche, J.-B. [Auteur]
Laboratoire réactivité et chimie des solides - UMR CNRS 7314 UPJV [LRCS]
Salager, E. [Auteur]
Conditions Extrêmes et Matériaux : Haute Température et Irradiation [CEMHTI]
Gourier, D. [Auteur]
Vezin, Herve [Auteur]

Laboratoire Avancé de Spectroscopie pour les Intéractions la Réactivité et l'Environnement - UMR 8516 [LASIRE]
Titre de la revue :
Nature Communications
Nom court de la revue :
Nat Commun
Numéro :
6
Pagination :
6276
Éditeur :
Springer Science and Business Media LLC
Date de publication :
2015-02-09
ISSN :
2041-1723
Résumé en anglais : [en]
Batteries for electrical storage are central to any future alternative energy paradigm. The ability to probe the redox mechanisms occurring at electrodes during their operation is essential to improve battery performances. ...
Lire la suite >Batteries for electrical storage are central to any future alternative energy paradigm. The ability to probe the redox mechanisms occurring at electrodes during their operation is essential to improve battery performances. Here we present the first report on Electron Paramagnetic Resonance operando spectroscopy and in situ imaging of a Li-ion battery using Li2Ru0.75Sn0.25O3, a high-capacity (>270 mAh g(-1)) Li-rich layered oxide, as positive electrode. By monitoring operando the electron paramagnetic resonance signals of Ru(5+) and paramagnetic oxygen species, we unambiguously prove the formation of reversible (O2)(n-) species that contribute to their high capacity. In addition, we visualize by imaging with micrometric resolution the plating/stripping of Li at the negative electrode and highlight the zones of nucleation and growth of Ru(5+)/oxygen species at the positive electrode. This efficient way to locate 'electron'-related phenomena opens a new area in the field of battery characterization that should enable future breakthroughs in battery research.Lire moins >
Lire la suite >Batteries for electrical storage are central to any future alternative energy paradigm. The ability to probe the redox mechanisms occurring at electrodes during their operation is essential to improve battery performances. Here we present the first report on Electron Paramagnetic Resonance operando spectroscopy and in situ imaging of a Li-ion battery using Li2Ru0.75Sn0.25O3, a high-capacity (>270 mAh g(-1)) Li-rich layered oxide, as positive electrode. By monitoring operando the electron paramagnetic resonance signals of Ru(5+) and paramagnetic oxygen species, we unambiguously prove the formation of reversible (O2)(n-) species that contribute to their high capacity. In addition, we visualize by imaging with micrometric resolution the plating/stripping of Li at the negative electrode and highlight the zones of nucleation and growth of Ru(5+)/oxygen species at the positive electrode. This efficient way to locate 'electron'-related phenomena opens a new area in the field of battery characterization that should enable future breakthroughs in battery research.Lire moins >
Comité de lecture :
Oui
Audience :
Non spécifiée
Établissement(s) :
Université de Lille
CNRS
CNRS
Collections :
Équipe(s) de recherche :
Propriétés magnéto structurales des matériaux
Date de dépôt :
2020-09-03T10:18:36Z
2021-03-23T12:44:15Z
2021-03-23T12:44:15Z
Fichiers
- Sathiya et al. - 2015 - Electron paramagnetic resonance imaging for real-time monitoring of Li-ion batteries.pdf
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