Electron paramagnetic resonance imaging for real-time monitoring of Li-ion batteries

Sathiya, M.; Leriche, J.-B.; Salager, E.; Gourier, D.; Vezin, Herve

Document type :

Article dans une revue scientifique

Permalink :

http://hdl.handle.net/20.500.12210/29726

Title :

Electron paramagnetic resonance imaging for real-time monitoring of Li-ion batteries

Author(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]

Journal title :

Nature Communications

Abbreviated title :

Nat Commun

Volume number :

Pages :

6276

Publisher :

Springer Science and Business Media LLC

Publication date :

2015-02-09

ISSN :

2041-1723

English abstract : [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. ...
Show more >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.Show less >

Peer reviewed article :

Oui

Audience :

Non spécifiée

Administrative institution(s) :

Université de Lille
CNRS

Collections :

Laboratoire Avancé de Spectroscopie pour les Intéractions la Réactivité et l'Environnement (LASIRE) - UMR 8516

Research team(s) :

Propriétés magnéto structurales des matériaux

Submission date :

2020-09-03T10:18:36Z
2021-03-23T12:44:15Z

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