Abstract: The tape forming jig includes a forming plate including a plate body, and a forming hole formed through the thickness direction of the plate body and configured such that the diameter thereof becomes narrower from a first surface of the plate body to a second surface opposite to the first surface. The tape forming jig also includes a forming block provided to be able to enter the forming hole with a cross-section corresponding to the shape of the forming hole as viewed from the outside of the second surface of the plate body. A jelly roll taping device includes the tape forming jig. A jelly roll taping method utilizes the tape forming jig.

Abstract: A welding mask according to an embodiment of the present disclosure includes a welding mask body having a laser passage portion configured to allow a laser emitted into a housing of a battery cell to pass therethrough, the welding mask body configured to cover an open portion on a side of the housing; and an insertion guide having a hollow structure, connected to the laser passage portion, and configured to be inserted into a winding center hole of an electrode assembly received in the housing.

Abstract: A pallet according to an embodiment of the present disclosure is a pallet for electrolyte injection configured to connect an electrolyte feeder for feeding an electrolyte to an open portion on a side of a housing of a battery, and includes a hopper having a hollow structure; and a sealing member including a hopper coupling portion coupled to the hopper and a battery sealing portion configured to seal the open portion, wherein the battery sealing portion comes into close contact with an inner surface of the housing of the battery.

Abstract: An electrode assembly transfer tray is configured to accommodate an electrode assembly in which a laminate is wound around a winding axis, and includes a bottom plate configured to support the electrode assembly. The bottom plate includes a seating portion. The seating portion includes a first accommodating portion positioned at one end in the extension direction of the winding axis and configured to accommodate a first tab portion formed by winding the first uncoated portion; a second accommodating portion positioned at the other end in the extension direction of the winding axis and configured to accommodate a second tab portion formed by winding the second uncoated portion; and a support portion configured to support a body portion.

Abstract: The present disclosure discloses a battery visual inspection system configured to prevent the battery from being damaged or broken during the battery visual inspection process and to facilitate the inspection process. A battery visual inspection system according to one aspect of the present disclosure may include a first inspection unit configured to inspect the side of the battery in an upright state; a second inspection unit configured to inspect the top and bottom of the battery in an upright state; and a first moving unit configured to move the battery along the horizontal direction.

Abstract: An apparatus for producing a cylindrical secondary battery cell including a battery can in which an electrode assembly and an electrolytic solution are accommodated, a cap plate coupled to the battery can, and a gasket located between the battery can and the cap plate includes: a support member into which the cylindrical secondary battery cell is inserted in a state where an end portion of the battery can and an end portion of the gasket are arranged to face a preset direction and the cap plate contacts the gasket; at least one fixing member configured to fix the cylindrical secondary battery cell moved to a preset position by the support member; and a forming member located over the cylindrical secondary battery cell fixed by the fixing member and rotating and pressing the end portion of the battery can to form a crimping portion.