Copper Welding for Energy Storage Production

March 25, 2021 by Coherent
Copper Welding Teaser

Making the case for the power of IR over green lasers

Increasing Li-ion battery production volumes to fuel the rising demand for e-mobility and renewable energy puts pressure on manufacturers to improve production yields and throughput to stay competitive.  

A critical step in many applications is welding copper, thin foils, and dissimilar materials in a scalable solution that delivers the desired production throughput, quality, and cost characteristics. In response, we’ve developed a novel infrared fiber laser technology that overcomes the limitations of other sources.  

Read the whitepaper: Powering e-mobility

The most recent Coherent innovation in ARM fiber lasers is a single-mode center beam option.  This benefits copper welding, in particular, because it provides the power required to readily melt the material, despite its relatively low IR absorption coefficient.   

In fact, Coherent application specialists have recently discovered the lower infrared absorption of copper is actually an advantage.  

Read the application note: Copper welding with high brightness

By allowing the laser to penetrate deeper into the keyhole, the yield is more stable and less turbulent process – the Coherent ARM laser dramatically reduces spatter. You’ll also see it delivers: 

  • Higher speed than current green lasers 
  • Weld penetration depths that meet production requirements
  • Insensitivity to changes in material surface appearance for a stable process 

 

Featured Posts

Thirty Meter Telescope

Delivering roundels for the Thirty Meter Telescope

Coherent recently delivered the first shipment of precision mirrors for the Thirty Meter Telescope.

Laser black marking for demanding applications

Laser black marking for demanding applications

ExactMark 230 Simplifies Laser Black Marking applications for medical devices, automotive, and consumer products, as well as other advanced marking tasks, are all streamlined and automated by the new ExactMark 230 USP from Coherent.

New Product: Rapid LX

New Product: Rapid LX

Introducing the new Rapid LX — a true industrial picosecond laser platform for 24/7 production.

WaferLase II Streamlines NGS Flow Cell Production

WaferLase II Streamlines NGS Flow Cell Production

The new Coherent WaferLase II automated glass cutting systems combines automation with the proprietary SmartCleave technology for an environmentally friendly, low cost production solution for Next Generation Sequencing (NGS) Flow Cells.

888nm fiber-coupled single-emitter pump diode modules

888nm fiber-coupled single-emitter pump diode modules

Utilizing the new long-wavelength (888 nm) FACTOR series of fiber-coupled (FC) pump diode modules from Coherent will enable diode-pumped, solid-state laser builders to achieve higher power, without sacrificing beam quality.

Connect with Coherent

Our team is ready to help.