Composition for non-aqueous secondary battery functional layer, base material with non-aqueous secondary battery functional layer, method for producing non-aqueous secondary battery laminate, and non-aqueous secondary battery

摘要

Provided is a composition for a non-aqueous secondary battery functional layer capable of forming a functional layer for a non-aqueous secondary battery that can provide a battery component with high blocking resistance and cause excellent adhesiveness to be displayed before and after immersion in electrolysis solution. The composition contains a particulate polymer having a core-shell structure including a core portion and a shell portion partially covering an outer surface thereof. The core portion is formed by a polymer having a glass transition temperature of -50°C to 60°C and a degree of swelling in electrolysis solution of at least a factor of 5 and no greater than a factor of 30. The shell portion is formed by a polymer having a glass transition temperature of 50°C to 200°C and a degree of swelling in electrolysis solution of greater than a factor of 1 and no greater than a factor of 4.