Against a backdrop of strong growth in electric mobility, DOUBLE CŒUR is demonstrating its industrial expertise in lithium battery laser welding through a large-scale pilot project that has been successfully completed.
Laser welding of lithium batteries: 193,000 successful welds without defects
At DOUBLE CŒUR, we recently supported an e-mobility manufacturer in the assembly of high-performance lithium-ion batteries. The aim was to guarantee reliable, industrial-scale production in line with strict criteria.
A demanding project validated in real-life conditions
- 1,200 battery modules produced
- 193,000 flawless laser welds on lithium batteries
- 0 outgassing, short-circuit or leakage
- Results validated by electrical and metallurgical tests
Thanks to our laser transparency welding process, custom-made clamping tools and full automation, we achieved optimum reproducibility right from the pilot phase.
Mastering multi-materials for your lithium batteries
Our processes are compatible with the main e-mobility formats and materials:
- Cylindrical, prismatic or pouch cells
- Copper, aluminium, nickel
- Steels and nickel-plated metals
Each laser beam setting is optimized to ensure precise, flawless welding that meets the requirements of industrial traceability.
Agile and comprehensive industrial subcontracting
DOUBLE CŒUR supports its customers at every stage of the product cycle:
- Process development upstream of your investments
- Absorbing peak loads to meet your deadlines
- Product end-of-life: transition and post-series support
As a specialist in lithium battery laser welding, we offer a turnkey solution, from R&D to series delivery.
Measurable industrial results
- 193,000 flawless welds
- Rejection rate: 0%.
- Performance validated according to the following criteria:
- Peel strength > 90N
- Impedance < 50 µOhm at 40A
- Max. temperature < 80°C
A trusted partner for your e-mobility projects
Our expertise in lithium battery laser welding is recognized for its rigor, reproducibility and ability to adapt to your industrial challenges.
Contact us to discuss your lithium battery projects and find out how DOUBLE CŒUR can become your strategic partner.