Abstract: The present invention relates to a pouch-type battery cell, a device for bending a pouch wing in the battery cell, and a method for bending a pouch wing in the battery cell, and specifically, relates to a pouch-type battery cell capable of improving insulation resistance performance of the battery cell by bending a pouch wing while heat-treating a sealing part of the pouch wing in the battery cell, thereby preventing and removing cracks in the sealing part, a device for bending a pouch wing in the battery cell, and a method for bending a pouch wing in the battery cell.

Abstract: An activation apparatus for a secondary battery includes a first chamber having a first conveyor for conveying a battery cell and being capable of adjusting a vacuum level in a space in which the first conveyor is located; a vacuum chamber having an activation unit in which the battery cell is disposed so that activation and degassing of the battery cell are performed, the vacuum chamber being capable of maintaining a vacuum state in a space in which the activation unit is located; a second chamber having a second conveyor for conveying the battery cell and being capable of adjusting a vacuum level in a space in which the second conveyor is located; a movement line crossing the first chamber, the vacuum chamber, and the second chamber; and a carrier connected to the movement line to move the battery cell along the movement line.