Disclosed herein relates to a sealing device for a pouch-type secondary battery, the sealing device including a light source part for irradiating light and a pressurizing part for heating and pressurizing a sealing part of a pouch-type case using light irr...

The electrode connection method has a ring or disc (12) used for holding the spaced tongues (2) of the electrode (1) in contact with the battery pole (3), during welding of the electrode tongues to the battery pole via a laser beam passing through the ring...