Electrode notching mold for secondary battery having auto-balance unit, and auto-balance unit

An electrode notching mold for a secondary battery having an auto-balance unit, the electrode notching mold comprising:

• a cover portion comprising an upper plate in a plate shape in which a plurality of openings is formed and a lower plate spaced apart from and facing the upper plate;
• a mold portion formed in the form of a notching mold, having a film for a secondary battery pouch inside the mold portion, having an upper portion coupled to the upper plate, having a lower portion coupled to the lower plate, and having a plurality of cut portions in a blade shape in a portion forming a press-fit space formed inside the mold portion;
• a plurality of ascending-descending portions formed to be linearly driven and configured to ascend or descend the upper plate as a driving direction is provided between the upper plate and the lower plate perpendicular to an upper surface of the lower plate;
• a plurality of guide portions having a pillar shape, having one end provided in a lower body of the mold portion, and having another end penetrating an upper body of the mold portion;
• a plurality of auto-balance units comprising an upper body coupled to the upper plate and having a central hole formed in a central axis, a lower body in a hub-flange shape coupled to a lower end of the upper body and having a bottom surface coupled to an upper end of the mold portion, a connecting portion of a hollow body protruding to penetrate the upper body and the lower body, and a spherical bearing provided in the central hole and axially coupled to the connecting portion;
• and
• a pressing portion provided in the upper plate and configured to press-fit the film to the upper surface of the lower plate while descending toward the press-fit space.