POUCH FILM LAMINATE, POUCH-TYPE BATTERY CASE, AND POUCH-TYPE SECONDARY BATTERY

The present invention relates to a pouch film laminate in which a base material layer; a gas barrier layer; and a sealant layer are sequentially laminated, wherein the sealant layer includes a first sealant layer including a polypropylene random copolymer and a second sealant layer including crosslinked polypropylene, and a degree of crosslinking of the second sealant layer is in a range of 52% to 80%.