TOPIC 15 - Operando investigation of battery materials, electrodes and solid electrolytes, using Neutron Diffraction

The teams in place in LRCS Amiens and ICMCB Bordeaux are presently investigating many electrode and solid electrolyte structural families, through several on-going PhD projects in collaboration with DESTINY partners, academic institutions, companies and large scale facilities such as ALBA, SOEIL and ILL. The materials of interest include state of the art advanced electrodes such as LNMO, NMC, NVPF, NVP, hard carbons and inorganic solid electroytes such as Nasicons, antiperovskites, Li3PS4-based, etc...

Through this PhD project, we wish to study several aspects relevant to All Solid State battery problem: the reactivity / stability of electrode materials, coated or non-coated, vs. solid electrolytes, at various temperatures and states of charge / discharge. Mechanisms of Li+ (or Na+) extraction / insertion will be probed insitu thanks to new electrochemical cells developed @ILL, that allow solid state batteries to be operated within a neutron diffractometer, at temperatures ranging from RT to 250°C.