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Materials advances for better Li(Na)-ion batteries
jeudi 09 juin 2016

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Descriptif

Conférence de Jean Marie Tarascon organisée par le département de Physique.

Materials advances for better Li(Na)-ion batteries : any interest to physicists ?

Rechargeable lithium ion batteries, because of their high energy density, have conquered most of today’s portable electronics and they stand as serious contenders for EV’s and grid applications. Therefore, for this to happen, materials with higher energy densities while being sustainable, scalable, reliable and low cost must be developed. The challenges for chemists are enormous and this calls for new materials, new chemistries and new concepts. These different aspects will be addressed through this presentation while showing the physics these compounds may exhibit.
Firstly, the strategy towards the design of novel high voltage polyanionic compounds will be described and their magnetic properties presented. Turning to new concepts, we will show how the discovery of a reversible Li-driven anionic redox process among Li-rich layered oxides represents a transformational approach for creating advanced energy electrode materials while bringing back to the scene ligand holes issues in solids ; a fertile ground for superconductivity. Lastly, concerning sustainability, our new findings regarding Na-ion chemistry which enlists novel materials design will be shared as well.

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Auteur(s)
Jean-Marie Tarascon
Collège de France
Professeur

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Cursus :

Professeur au Collège de France, Jean-Marie Tarascon est un spécialiste de la chimie du solide. Il a commencé sa carrière aux États-Unis, d'abord à l’Université de Cornell, puis aux laboratoires Bell et Bellcore jusqu'en 1994. Il a ensuite été professeur à l'Université de Picardie Jules Verne et directeur du Laboratoire de réactivité et chimie des solides (LRCS UMR CNRS 7314) à Amiens.

Il a créé en 2011 le Réseau sur le stockage électrochimique de l'énergie, une fédération de recherche du CNRS rapprochant les acteurs industriels et académiques dans le domaine des batteries et des supercondensateurs.

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Dernière mise à jour : 12/09/2016