| 摘要 |
PROBLEM TO BE SOLVED: To provide an outer package body for a power storage device, such as a lithium ion secondary battery, capable of being reduced in thickness and less likely to cause breakage even if locally stretched.SOLUTION: An outer package body 1 for a power storage device includes a coating layer 4, a first corrosion inhibiting layer 3, a metal foil layer 2, a second corrosion inhibiting layer 5, an adhesive layer 6 and a sealant layer 7. The coating layer 4 contains one of or both of rotaxane and pseudorotaxane, and is provided on the first corrosion inhibiting layer 3 without having an adhesive layer interposed therebetween.SELECTED DRAWING: Figure 1 |
