Séminaire MONARIS | Arnaud Perez "Solid-chemistry approaches to design new materials for energy storage systems"

Le MONARIS vous invite à un séminaire présenté par

Arnaud Perez (LCMCP)

intitulé "Solid-state chemistry approaches to design new materials for energy storage systems"

Abstract :
Improving and diversifying energy storage technologies is key to accelerate the transition from fossil fuels to renewable energies. Among the developments making this transition accessible, the impressive progress accomplished by the lithium-ion technology in the last decades is exemplary. To further ease the impact of technology on natural resources, a large range of energy storage technologies are being investigated beyond Li-ion batteries (Na-ion, Li-S, all-solid-state batteries etc.) and require fundamental understanding of the materials used to assemble these systems. In this seminar, I will present several examples of new materials designed to push energy storage systems beyond the current Li-ion technology. Through adequate synthesis methods (solid-state, mechanochemical, coprecipitation), varied characterization techniques (X-ray and neutron diffraction, XPS, XAS, Raman spectroscopy, electron microscopy…), including ex situ and operando approaches, and electrochemical measurements in assembled devices, we can dress an exhaustive picture of the behaviour of these new materials in battery systems. Through different examples, I will cover several important problematics of battery systems including energy density, energy efficiency, abundance of elements, stability, and aging of materials.

Keywords: Battery materials, Solid-state chemistry, ex situ/operando characterization.