Processing method and system for explosion-proof line of explosion-proof valve of lithium battery

• Main Authors: LI ZHIFEI, CHEN XIANFENG, LYU JIAWEI, JIANG SHUO, JIANG BAILIN, WANG JIANGANG, ZHANG KUN
• Format: Patent
• Language: Chinese; English
• Published: 25.12.2020
• Subjects: CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; PERFORMING OPERATIONS; SOLDERING OR UNSOLDERING; TRANSPORTING; WELDING; WORKING BY LASER BEAM

The invention relates to a processing method for an explosion-proof line of an explosion-proof valve of a lithium battery. The method comprises the following steps of generating, by a laser emitter, laser beams; reducing, by a beam expander, divergence angles of beams of the laser beams emitted parallelly, increasing the diameters of the beams, and reducing the diameters of focusing spots; deflecting, by a laser galvanometer, the directions of the emitted laser beams, wherein the transmission directions of the laser beams are changed; focusing, by a focusing lens, the laser beams with changeddirections, wherein the laser power density is increased and the laser is acted to the explosion-proof valve of a to-be-processed lithium battery; and setting laser pulse width, power and frequency parameters according to technical demands of clients on the explosion-proof line of the explosion-proof valve of the lithium battery, wherein the laser etches the explosion-proof valve of the lithium battery to generate the exp