Slurry composition for all-solid-state secondary battery, solid electrolyte-containing layer, and all-solid-state secondary battery

A slurry composition for an all-solid-state secondary battery comprising a solid electrolyte, a particulate polymer, and an organic solvent, wherein

• 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.,
• 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, and the nitrogen functional group-containing monomer unit is included in the polymer forming the shell portion in an amount of not less than 10 mass % and not more than 90 mass % when all repeating units of the polymer forming the shell portion are taken to be 100 mass %,
• the particulate polymer includes a cross-linkable monomer unit, and the cross-linkable monomer unit is included in the particulate polymer in an amount of not less than 0.1 mass % and less than 2.0 mass % when all repeating units of the particulate polymer are taken to be 100 mass %, and
• the polymer forming the core portion includes the cross-linkable monomer unit in an amount of not less than 0.7 mass % and not more than 3.0 mass % when all repeating units of the polymer forming the core portion are taken to be 100 mass %.