SLURRY COMPOSITION FOR ALL-SOLID-STATE SECONDARY BATTERY, SOLID ELECTROLYTE-CONTAINING LAYER, AND ALL-SOLID-STATE SECONDARY BATTERY

Provided is a slurry composition for an all-solid-state secondary battery with which it is possible to form a solid electrolyte-containing layer that can cause an all-solid-state secondary battery to display excellent output characteristics and cycle characteristics. The slurry composition contains a solid electrolyte, a particulate polymer, and an organic solvent. The particulate polymer has a core-shell structure including a core portion and a shell portion at least partially covering an outer surface of the core portion. A polymer forming the core portion has a glass-transition temperature of not lower than -60° C. and not higher than -10° C., and a polymer forming the shell portion has a glass-transition temperature of not lower than 15° C. and not higher than 100° C. The polymer forming the shell portion includes a nitrogen functional group-containing monomer unit in a proportion of not less than 10 mass% and not more than 90 mass%.