UV laser engraves graphics and word on the surface of lithium battery without damaging the battery Lithium batteries are widely used in a series of electronic devices such as mobile phones and digital cameras, and their surface needs to be engraved with clearly visible information and word. The RFH 355 UV laser, jointly created by professors at home and abroad, can engrave the required characters and patterns on the surface of the lithium battery during marking, but it will not damage the important performance of the lithium battery itself.