Battery pack


 

Laser beam welding of battery cell contacts

 

 

Challenges:

  • Highest weld seam quality for high current capacity

  • Formation of detrimental intermetallic phases due to Al-Cu / Cu-steel mixed joints

Approach:

Laser beam welding with beam oscillation to control heat input, melt pool dynamics, connection area and chemical mixing of joining partners

  • High flexibility and automatibility for processing common cell types

  • Small heat-affected zone to protect sensitive cell components