What are the major advantages of laser production in lithium battery processing?

Due to the high requirements for accuracy, controllability and quality of production machines, metal foil slitting, metal foil cutting, label cleaning and isolation film cutting are more suitable for laser production. Compared with traditional mechanical production, laser lithium battery production has the advantages of no tool wear, flexible cutting shapes, edge quality control, higher accuracy and lower operating costs. Because of its excellent performance, lithium batteries are widely used in the consumer electronics, motor vehicles and energy markets, and its processing technology innovation is particularly important. The lithium battery production process requires high accuracy, controllability and the quality of the production machinery. In the process of use, the die cutter will wear out unpreparedly, and then drop dust and burrs, which may cause dangerous problems such as battery overheating, short circuit, and explosion. In order to guard against danger, it is more suitable to use laser for production. From the manufacture of lithium battery cells to battery pack assembly, welding is a very important manufacturing process. The conductivity, strength, air tightness, metal fatigue and corrosion resistance of lithium batteries are typical battery welding quality evaluation standards. . The selection of welding methods and welding processes will directly affect the cost, quality, safety and consistency of the battery. Laser welding has become the first choice for many welding tasks due to its advantages of safe and reliable welding, precise process and environmental protection. Metal foil slitting: The metal foil slitting process refers to cutting a roll of metal foil into thin strips along the long side according to the design of lithium batteries. The infrared pulse laser is suitable for this link, which can slit the electrode coating with high speed and high quality. If there are more precise requirements for slitting width and quality, pulsed green light and ultraviolet light can also be considered. Metal foil cutting: The metal foil cutting process refers to cutting the long and thin anode film and cathode film into desired shapes with reference to the design of the lithium battery. Depending on the battery design and whether the metal foil roll is completely coated, you can choose or adjust the beam to cut the coating or only cut the metal foil. The applicable laser in this link is the same as the aluminum foil slitting link. Label cleaning: Under certain circumstances, graphite and lithium metal oxides should be removed to reveal bare copper or aluminum foil labels. The key to this step is to remove the coating material without damaging the metal foil below it. Pulsed infrared lasers are most suitable for this link. Isolation film cutting: Similar to aluminum foil cutting, the overturning film should also be cut into the desired shape with reference to the design of the lithium battery. Because the isolation film is composed of organic compounds, pulsed ultraviolet lasers are the most suitable choice. Disclaimer: Some pictures and content of the articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous article: Is the thermal runaway serious for lithium batteries?