NOVELTY - A packaging material (1) comprises heat-resistant resin layer (2) as outer side layer, thermoplastic resin film layer (3) as inner side layer, and metal foil layer (4) positioned on outer side and inner side layers. Thermoplastic resin film has tensile yield strength of greater than or equal to 15 MPa in film extrusion direction, tensile yield strength of greater than or equal to 15 MPa in direction orthogonal to film extrusion direction, and tensile yield strength of greater than or equal to 15 MPa in direction of right angle of 45 degrees with respect to film extrusion direction.    USE - A packaging material for molded case used as battery case (all claimed). Can also be used for notebook personal computers, mobile telephones, vehicles, foodstuff, and pharmaceutical.    ADVANTAGE - Formation of wrinkles on packaging material due to stress can be suppressed, appearance of packaging material can be improved, and sufficient sealing strength can be achieved.    DETAILED DESCRIPTION - A packaging material (1) comprises heat-resistant resin layer (2) as outer side layer, thermoplastic resin film layer (3) as inner side layer, and metal foil layer (4) positioned on outer side and inner side layers. Thermoplastic resin film has tensile yield strength of greater than or equal to 15 MPa in film extrusion direction, tensile yield strength of greater than or equal to 15 MPa in direction orthogonal to film extrusion direction, tensile yield strength of greater than or equal to 15 MPa in direction of right angle of 45 degrees with respect to film extrusion direction, and tensile yield strength of greater than or equal to 15 MPa in direction of left angle of 45 degrees with respect to film extrusion direction. An INDEPENDENT CLAIM is included for molded case formed by deep drawing or stretching packaging material.    DESCRIPTION OF DRAWING(S) - The drawing shows a sectional diagram of the packaging material.    Packaging material (1)    Heat-resistant resin layer (2)    Thermoplastic resin film layer (3)    Metal foil layer (4)    1st adhesive bond layer (5)