Battery Cell, Manufacturing Apparatus and Method for Battery Cell

The present disclosure relates to a battery cell, a manufacturing apparatus for the battery cell, and a manufacturing method for the battery cell, and the battery cell according to one embodiment of the present disclosure may include: a case accommodating an electrode assembly; a cap plate connected to the case and including an electrolyte inlet; and a sealing cover welded to the cap plate, sealing the electrolyte inlet, and having a exposed outward facing surface, and the sealing cover may include: a bead region protruding from the exposed outward facing surface; and a scorch mark formed on the bead region.