Patent ID: 8524392

Claim:
A pouch-type rechargeable battery comprising: an electrode assembly including a resin layer arranged on a surface portion of an electrode tab; and a pouch having a front and rear end on opposite sides of the pouch, said pouch including the electrode tab drawn out through a sealing part arranged on the entire front end of the pouch, said resin layer being a portion of said sealing part, said electrode assembly being housed in the rear end of the pouch; wherein the resin layer does not extend beyond a straight line crossing the electrode tab and passing a front end of the pouch, wherein said seal part of said pouch includes a groove located on a surface of the front end of the pouch where the electrode tab protrudes through the pouch in a region corresponding to the resin layer of the sealing part exposing a portion of the resin layer, said groove forming an indentation in the surface of the front end of the pouch around the electrode tab and below said straight line, wherein the indentation of the groove has a curved shape with a convex curvature of the groove bent toward the rear end of the pouch where electrode assembly is housed.