BATTERY CELL MANUFACTURING APPARATUS AND MANUFACTURING METHOD

An apparatus for manufacturing a battery cell according to an embodiment of the present disclosure includes a vacuum chamber in which a semi-finished battery cell is placed, the semi-finished battery cell including an accommodation portion accommodating an electrolyte solution and an electrode assembly, and a gas pocket portion connected to the accommodation portion and located higher than the accommodation portion; a piercing unit configured to form a degassing hole in the gas pocket portion by piercing; a sealing tool configured to form a temporary sealing portion across between the degassing hole and the accommodation portion, and form a sealing area including the temporary sealing portion while the sealing tool moves up in a state of being in contact with the gas pocket portion; a cutting unit configured to cut off a portion of an upper part of the gas pocket portion to form an opening after the temporary sealing portion is formed; and a spray unit configured to spray gas into the opening.