POUCH FILM FOR SECONDARY BATTERY EXTERIOR AND SECONDARY BATTERY COMPRISING SAME

The present disclosure provides a pouch film for a secondary battery exterior, the pouch film comprising an outer layer, a barrier layer, and a sealant layer that are sequentially laminated, wherein the sealant layer comprises a polyolefin-based resin, an upper yield strength of the sealant layer in an MD direction is in a range of 17.50 N/mm2 to 19.99 N/mm2, an upper yield strength thereof in a TD direction is in a range of 16.50 N/mm2 to 18.99 N/mm2, and a glass transition temperature of the sealant layer is in a range of -30.00°C to -20.00°C.