POSITIVE ELECTRODE CUTTING DEVICE USING LASER

摘要

The present invention relates to a positive electrode cutting device capable of continuously cutting a positive electrode sheet using a laser. A positive electrode cutting device using a laser according to a preferred embodiment of the present invention comprises: a laser oscillator for emitting a laser beam; and a focusing lens for focusing the laser beam, which has been emitted from the laser oscillator, and radiating the laser beam to the positive electrode sheet, in order to cut the positive electrode sheet, wherein the size of a focus spot of the laser beam radiated to the surface of the positive electrode sheet is 10-50μm, and energy density at the focus spot may be 25J/cm2 or higher.