Views: 0 Author: Site Editor Publish Time: 2025-07-24 Origin: Site
In the heart of every new-energy vehicle lies its battery—its range, safety, and overall quality depend on it. Battery welding is therefore a make-or-break step in production, but conventional methods struggle to meet today’s tougher standards. Laser welding machines have emerged as the definitive answer, delivering ultra-precise, reliable connections.
Key challenges for EV-battery welding
• Battery tabs can be as thin as 50 µm; traditional heat sources easily damage them.
• Packs must survive 60–80 °C operating temperatures and continuous vibration, demanding joints that carry high current yet resist fatigue. Ordinary welds often contain voids, lowering strength and conductivity, and can even crack—posing safety risks.
• Multiple materials—aluminum alloys prone to oxidation and copper with extreme thermal conductivity—further complicate the process.
How laser welding overcomes these hurdles
High-energy-density beams melt material in milliseconds, minimizing heat input and protecting delicate foils. Power, pulse width, and frequency can be tuned on the fly to tame aluminum oxidation and override copper’s heat sink effect, producing clean, strong seams.
Modern machines add intelligent seam-tracking: laser-vision sensors capture real-time joint data, while advanced algorithms guide the robot to keep the beam exactly on the weld path, even when part tolerances shift.
During module assembly, rapid laser pulses boost throughput and guarantee consistent joints. One leading EV maker raised its welding yield from ~80 % to over 95 % and lifted production speed by nearly 50 % after adopting laser welding.
If you need a proven solution for EV-battery welding, look to PDKJ. PDKJ laser welders integrate cutting-edge control systems that adapt to every battery-welding scenario—tab bonding, module stacking, or enclosure sealing—delivering high-precision, high-quality results that help you win in the competitive new-energy market.
If you have welding machine requirements, please contact Ms. Zhao
E-Mail: pdkj@gd-pw.com
Phone: +86-13631765713
