The power battery cap is a component at the top end of the power battery. It is an important part of the power battery, capable of ensuring the safety of power battery usage, with features such as overpressure protection, explosion protection, and overcurrent protection. Up to now, laser welding technology has been integrated into many aspects of power battery production. From cylindrical batteries and pouch batteries to prismatic batteries, laser welding technology is extensively used in the production process. Especially for prismatic batteries, laser welding technology is used from welding the top cover to sealing nails, flexible connections, explosion-proof sheets, polar posts, and modules. Laser welding is one of the key technologies in power battery production, which better ensures the quality of welding while improving efficiency.
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