The present invention relates to a separator sealing device and an apparatus for manufacturing a unit cell using the same, and more particularly, to a separator sealing device, which is capable of sealing a portion of a separator between an electrode and an electrode with accuracy, efficiency, and improved quality and capable of being used continuously and economically without problems due to deformation, and an apparatus for manufacturing a unit cell using the same.
A separator sealing device according to the present invention includes: a first sealing unit provided with a sealing tip having a protruding shape to press a separator on an outer surface thereof, the first sealing unit rotating about a first rotation shaft; and a second sealing unit provided with a pressing surface that faces the sealing tip to press the separator on a circumference thereof, the second sealing unit rotating about a second rotation shaft, wherein, when the first sealing unit and the second sealing unit rotate, the sealing tip and the pressing surface press the separator disposed between the first sealing unit and the second sealing unit to perform the sealing of the separator.
Specifically, the apparatus for manufacturing the unit cell according to the present invention may be an apparatus for manufacturing a unit cell, which manufactures a unit cell, in which electrodes and separators are alternately stacked, and the apparatus includes: a lamination device configured to laminate an electrode stack in which a sheet-type separator and a plurality of electrodes are alternately stacked through heat and a pressure; a separator sealing device configured to seal a portion between the plurality of electrodes, which are arranged in a longitudinal direction of the sheet-type separator on the sheet-type separator in the electrode stack passing through the lamination device; and a cutting device configured to cut the portion between the plurality of electrodes, which is sealed after the separator sealing device performs the sealing operation.