Pouch curl prevention apparatus

A system comprising a pouch curl prevention apparatus located at a rear of a pouch film forming apparatus, wherein the pouch film forming apparatus comprises:

• a die configured to allow a pouch film to be disposed thereon;
• a stripper configured to press the pouch film disposed on the die;
• and
• a punch configured to press the pouch film disposed on the die to shape an electrode receiving portion;
• and
• wherein the pouch curl prevention apparatus comprises:
• an upper roller assembly comprising an upper roller unit including at least a pair of upper rollers, an upper roller shaft having a first end and a second end and extending through the pair of upper rollers, and between a pair of position change portions of the pair of upper rollers, wherein a first roller of the pair of upper rollers is mounted on the upper roller shaft adjacent to the first end and a second roller of the pair of upper rollers is mounted on the upper roller shaft adjacent to the second end, wherein the first and second ends of the upper roller shaft are selectively mounted in corresponding recessed portions of the pair of position change portions;
• and
• a lower roller assembly comprising a lower roller unit including at least a pair of lower rollers, wherein
• the pair of upper rollers and the pair of lower rollers are located so as to face each other,
• at least one of the pair of upper rollers and the pair of lower rollers is rotatable, and
• wherein the upper roller unit and the lower roller unit are configured to pass a pouch film supplied from the pouch film forming apparatus therebetween, and
• wherein the at least one of the pair of upper rollers and the at least one of the pair of lower rollers are located at an edge of the electrode receiving portion in a lateral direction of the pouch film.