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

A pouch film laminate according to the present invention is characterized in that it includes a base material layer, a gas barrier layer, and a sealant layer which are sequentially laminated, wherein the base material layer includes a drawing assistance film disposed on the gas barrier layer and a surface protection film disposed on the drawing assistance film, a ratio of machine direction (MD) tensile strength of the drawing assistance film to MD tensile strength of the surface protection film is in a range of 0.9 to 1.1, and a ratio of transverse direction (TD) tensile strength of the drawing assistance film to TD tensile strength of the surface protection film is in a range of 0.9 to 1.1.