| 摘要 |
According to an aspect of the present invention, a secondary battery comprises: an electrode assembly which performs charging and discharging; and a pouch case which comprises an accommodation unit embedded with the electrode assembly and an edge part formed on an outer side of the accommodation unit wherein a first bent part bent in the longitudinal direction of the edge part and a second bent part located inside the first bent part are formed in the edge part and a bent corner folding part is formed in an edge of the first bent part. |
