FILM FOR PUNCHING LITHIUM METAL AND METHOD FOR PUNCHING LITHIUM METAL USING SAME

Disclosed is a film for punching lithium metal which can be easily separated since lithium metal does not adhere to a lower release film provided on a lower portion of the lithium metal when the lithium metal is punched by an ultrasonic cutting method, and a method for punching lithium metal using the same. The film for punching lithium metal is located on a lower part of the lithium metal when the lithium metal is ultrasonically cut and comprises a polyethylene terephthalate (PET) base material, and a silicone-containing coating layer located on a surface of the PET base material.