Data underlying the publication: Correlating Ion Dynamics with Structure: From Liquid to Hybrid Solid Electrolytes

To advance lithium metal batteries, it is essential to develop a fundamental understanding of Li exchange kinetics across the SEI, and implement practical electrolyte engineering solutions to tailor the structure and properties of SEI, as well as improve battery safety. Compared to liquid electrolytes, solid-state electrolytes (SSEs) have the unique advantage of lowering or even eliminating safety concerns and improving energy density. Among them, hybrid solid electrolytes (HSEs), which combine an organic polymer electrolyte with an inorganic solid electrolyte, have the potential to leverage the strengths of both types while addressing their individual limitations. Despite their promising prospects, HSEs present intrinsic complexities, such as the interaction between the components, filler ratios and sizes, and film-forming structures, and how these impact their functional properties, which are not yet thoroughly understood. Thus, fundamental research is critically required to better understand the ion transport phenomena in HSEs at an atomic-scale