🔧 Battery Pack Busbar Welding: Laser vs. Ultrasonic vs. Resistance
Busbar welding may look like a small manufacturing detail, but it can have a major impact on battery pack performance and safety.
A poor weld can increase resistance and create localized heating under high current.
So which method should manufacturers choose?
⚡ Laser — strong, precise and suitable for high-current packs
🔊 Ultrasonic — low heat and excellent for thin materials and aluminum
🔥 Resistance — economical and simple, but with more limitationsMore importantly, manufacturers should verify weld quality through pull-force testing, DCIR checks, and proper defect inspection.
We explain the differences and key QC considerations in our latest article:
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#BatteryPack #BESS #BatteryManufacturing #LithiumBattery #EnergyStorage #BusbarWelding #BatterySafety #SunLithEnergy
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