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Thesis
Home   /   Thesis   /   High energy density Li-Ion and Na-Ion Positive Electrodes with reduced critical material content

High energy density Li-Ion and Na-Ion Positive Electrodes with reduced critical material content

Condensed matter physics, chemistry & nanosciences Physical chemistry and electrochemistry Ultra-divided matter, Physical sciences for materials

Abstract

This PhD subject will aim at developing new positive electrode materials based on glasses for high Energy Density Li-Ion and Na-Ion cells with reduced critical material content. These developments will be held jointly between the laboratory of materials for batteries from CEA-Grenoble and LDMC lab from CEA-Marcoule that is specialized in the formulation and characterization of glass materials.
The work will be focused on the optimization of the complex formulation of the glass cathodes to solve the issues related to first cycle irreversible loss and low cycling performances. The main objective will be to obtain one composition without critical raw materials exhibiting more than 1000Wh/kg at active material level vs 700 for state-of-the-art materials. This target will be reached with the support of advanced characterization techniques such as X-Ray Diffraction and RAMAN and FTIR spectroscopies. A dedicated effort will concern the development of operando or in-situ measures to be able to explain the link between electrochemical performances and glass characteristics, what has never been reported in the litterature.
This thesis will allow the candidate to gain valuable professional experience in the glass and energy sectors. He or she will develop skills in materials science and electrochemistry. In addition, thanks to his work environment, he will be able to assimilate a culture of nuclear waste conditioning.

Laboratory

Département de recherche sur les Procédés et Matériaux pour les Environnements complexes
Service d’Etudes des Matériaux et de l’Etanchéité
Laboratoire de Formulation et Caractérisation des Matériaux minéraux
Université Grenoble Alpes
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