abstract |
The present invention relates to a pouch exterior which can effectively block moisture penetration, and a pouch-type secondary battery comprising the same. In particular, according to the present invention, it is possible to effectively block moisture penetration between bonding interfaces at a sealing part of an upper pouch and a lower pouch. Therefore, according to the present invention it is possible to prevent the deterioration and degradation of performance of a secondary battery due to moisture penetration, and to increase stability of a secondary battery. |