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Busbar Welding Is The Mainstream Technology In Battery Manufacturing

Posted on by HGTECH

Battery modules are composed of multiple batteries (square, cylindrical, or blade) connected together through busbars. How to produce safe and reliable battery modules poses new requirements and challenges for electric vehicle manufacturers.

Laser welding has become the mainstream technology in battery manufacturing, and the use of laser welding technology can ensure that the connection of battery modules meets electrical performance requirements, thereby ensuring the performance and reliability of electric vehicles.

Why choose laser welding

1. Non-contact process
The materials used for manufacturing battery modules, whether Busbar or battery monomers, have very high requirements for yield. Laser welding does not come into contact with materials, eliminating the risks brought by traditional connection methods.

2. Efficiency and reliability
Laser welding adopts strict process control, making the welding process of Busbar highly reliable and greatly reducing downtime. By using control software and motion platforms to achieve machining consistency, the stability of laser power can be ensured, thereby avoiding changes in weld seams, which is a key factor in Busbar quality control. 

3. Easy to program and fast
Laser welding programming can adapt to different battery module designs and battery types. For cylindrical batteries that require a large number of connections, simpler and faster programming and manufacturing speed will significantly save production costs.

HGTECH provides a comprehensive laser welding solution for the battery Busbar, and the automotive power battery BUSBAR welding automation production line. Including AMB adjustable beam laser welding, LDD welding, and penetration detection technology. 
The equipment relies on a high-precision 6-axis robot with a large arm, combined with a high-precision turning and positioning machine, to perform laser welding on large-sized battery tray parts.
 
It can be paired with different laser welding heads to achieve processes such as laser wire filling fusion welding, laser brazing, laser remote scanning welding, and laser stir welding.
 
Can work independently on a single station or integrate into automated production lines to complete the automated production of battery tray parts.
Greatly improving battery quality, avoiding defects, and ensuring the safety and reliability of the welding process provide a safe and reliable solution for the manufacturing of battery Busbars.
 
Highlights of the production line
 
1. Equipped with dual camera detection function, it can achieve parallel inspection of upper and lower busbar plates after welding, meeting the high speed production needs of automobile manufacturers. 
 
2. Equipped with self-developed high-precision 3D weld contour detection software. 
 
3. It can be paired with different laser welding heads to achieve various processes such as laser wire filling fusion welding, laser brazing, laser remote scanning welding, laser stir welding, etc. 
 
4. Automation: It can integrate workstations into the line body, achieving automatic transportation of multiple workstations upstream and downstream. 
 
 
 
 

 

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