Sealing Block to Prevent Crack of Pouch-Type Secondary Battery, Pouch-Type Battery Case and Sealing Method for Pouch-Type Battery Case Using thereof

摘要

The present invention provides a sealing block for sealing a pouch-type secondary battery, A body part for heating and/or pressure sealing the outer periphery of the electrode terminal protruding and parallel to the outer periphery of the battery case and the body part are coupled in a direction perpendicular to one side of the body part and correspond to the rounding corner part of the electrode assembly accommodating part It consists of an anti-wrinkle part including a curved structure. The anti-wrinkle portion includes an extension portion connecting the body portion and the curved structure of the anti-wrinkle portion, and sealing may be performed in a state where the anti-wrinkle portion is positioned adjacent to the electrode assembly accommodating portion through the extension portion. Accordingly, the outer periphery of the battery case is fused to a portion adjacent to the corner of the electrode assembly housing to form a sealing portion, and the sealing portion of the battery case is fixed so that the battery case is not easily deformed, and wrinkles occur in the battery case. it can be prevented