Porous aramid nanofiber thin film, method for manufacturing same, and secondary battery comprising same

Abstract

A porous aramid nanofiber film, a manufacturing method thereof, and a secondary battery including the same are provided. The method of manufacturing the porous aramid nanofiber film includes forming an aramid nanoseed suspension layer by applying an aramid nanoseed suspension on a substrate. The suspension layer is immersed in an alcohol-containing protic solvent for first solvent exchange to prepare an aramid nanofiber film by self-assembly. The aramid nanofiber film is immersed in water for second solvent exchange to form an aramid nanofiber hydrogel film. Freeze-drying the aramid nanofiber hydrogel film to prepare a porous aramid nanofiber film.

Dependencies are inferred from the claim text.