An outer packaging casing for an electricity storage device and a method of manufacturing the same

The invention relates to an outer packaging casing for an electricity storage device and a method of manufacturing the same. The outer packaging casing (10) is formed by a molded casing of an outer casing material (1). The outer casing material (1) includes a heat-resistant resin layer (2) as an outer layer, and a heat-fusible resin layer (3) as an inner layer, and a metal foil layer disposed between the two layers (2) and (3). The heat-fusible resin layer (3) contains a lubricant, and the content of the lubricant in the heat-fusible resin layer (3) is 200 ppm to 7000 ppm. The content of the lubricant in the outer surface (2a) of the heat-resistant resin layer (2) is less than 0.1 [mu]g/cm . The wetting tension of the outer surface (2a) of the heat-resistant resin layer (2) is 33 mN/m ormore. 本发明涉及蓄电设备用外包装壳体及其制造方法。蓄电设备用外包装壳体(10)由外包装材料(1)的成型壳体形成，所述外包装材料(1)包含作为外侧层的耐热性树脂层(2)、作为内侧层的热熔接性树脂层(3)、和配置于上述(2)、(3)这两层之间的金属箔层而成。热熔接性树脂层(3)含有润滑剂，该热熔接性树脂层(3)中的润滑剂的含有率为200ppm～7000ppm。耐热性树脂层(2)的外表面(2a)中的润滑剂量小于0.1μg/cm。耐热性树脂层(2)的