POUCH FILM LAMINATE, MANUFACTURING METHOD THEREFOR, AND POUCH-TYPE SECONDARY BATTERY

The present invention relates to a pouch film laminate comprising a stretching auxiliary layer, a gas barrier layer, and a sealant layer, sequentially laminated, wherein the stretching auxiliary layer comprises sequentially laminated a first stretched nylon film layer and a second stretched nylon film layer, and the pouch film laminate has a TSTM value represented by Equation 1 of 0.80 to 1.24. TSTM=TST/TSMIn Equation 1, TST is a TD direction tensile strength (N/15 mm) of the pouch film laminate, and TSM is a MD direction tensile strength (N/15 mm) of the pouch film laminate.