Developing safer solid-state batteries requires replacing flammable organic liquid electrolytes with solid-state electrolytes (SSEs) that can conduct ions well, remain stable and have suitable mechanical properties. As interest in SSEs has grown, so has the volume of research in the field. However, the reported data remain scattered across the literature and vary widely in format and completeness, making systematic comparisons and the direct use of literature data for machine learning difficult.Developing safer solid-state batteries requires replacing flammable organic liquid electrolytes with solid-state electrolytes (SSEs) that can conduct ions well, remain stable and have suitable mechanical properties. As interest in SSEs has grown, so has the volume of research in the field. However, the reported data remain scattered across the literature and vary widely in format and completeness, making systematic comparisons and the direct use of literature data for machine learning difficult.Energy & Green Tech[#item_full_content]