In situ investigation of solid electrolyte-lithium interface for all-solid state Li-ion batteries development

In the search for the next generation of high energy density Li-ion batteries, solid electrolytes (SE) are a valid alternative to the current liquid electrolytes. However, their utilization is hindered by the interfacial resistance increase when the SE and the metallic lithium come in contact. In order to investigate this layer, we propose to monitor its formation in situ, by performing wide angle X-ray scattering measurements (WAXS) combined with pair distribution function analysis (PDF).