| 摘要 |
PROBLEM TO BE SOLVED: To provide a packaging material which is excellent in moldability in overhang molding, deep drawing molding, etc., can mold a sharp, deep molding height shape, and can suppress the occurrence of a pinhole, a crack, etc., a packaging container molded by using the material, and especially a lithium cell case high in volume energy density. SOLUTION: The packaging material has at least an outer layer of a heat resistant resin film, a metal foil layer, and an inner layer of a thermoplastic resin film. The heat resistant resin film of the outer layer has impact strength of at least 30,000 J/m. In the heat resistant resin film of the outer layer in the packaging material, tensile strength in four directions is preferably at least 150 N/mm<SP>2</SP>, and tensile elongation is preferably at least 80%. COPYRIGHT: (C)2005,JPO&NCIPI
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