Pouch-shaped battery case shaping apparatus including volatile lubricant supply unit and method using the same

A pouch-shaped battery case shaping apparatus, the shaping apparatus configured for shaping a sheet into the battery case and comprising:

• a die having an open recess having a size corresponding to an electrode assembly;
• a punch having a shape corresponding to the open recess, the punch comprising a punch head configured to draw the sheet into the open recess and thereby shape the sheet;
• a holder configured to hold opposite ends of the sheet so as to be fixed to the die while the punch draws the sheet;
• and
• a lubricant supply unit configured to supply a lubricant to a punch-facing surface of the sheet that abuts the punch head such that the punch-facing surface of the sheet is lubricated when the sheet is drawn,
• wherein the lubricant supply unit comprises an injection nozzle configured to inject a lubricant in an aerosol state, the injection nozzle fixed to an inclined surface of the holder, and
• wherein the apparatus is configured such that at the completion of the drawing of the sheet by the punch, confronting surfaces of the punch and the holder are spaced apart from one another by a gap, and the injection nozzle is located within the gap.