Energy storage box laser welding picture

What is battery laser welding?

Battery Laser Welding for Battery Pack Manufacturing Laser welding is one of the most promising joining technologies for EV batteries and energy storage systems. It provides the speed and precision needed to make the thousands of welds that connect tabs and busbars in battery packs, modules, and cells.

Can laser welding be used in EV battery production?

Of these, laser and ultrasonic welding processes dominate in EV battery manufacture – with laser welding the preferred solution for mass production – and continue to be improved and refined. “We see a lot of laser welding and ultrasonic wedge bonding for the larger packs,” says Boyle at Amada Weld Tech.

What is laser welding & how does it work?

Laser welding is being implemented for a wide range of electric battery applications: With more than 6kW of laser power, the welding speed can be scaled to meet short cycle time requirements. Lasers also require minimal maintenance, so they are ideal for production line automation. Laser welding can be optimized for minimal heat input.

What types of battery cells can be laser welded?

All types of battery cells can be laser welded, including cylindrical cells, prismatic cells, and pouch cells. Laser welding is being implemented for a wide range of electric battery applications: With more than 6kW of laser power, the welding speed can be scaled to meet short cycle time requirements.

Can a laser weld a battery?

Laser welding can be optimized for minimal heat input. As a result, batteries do not suffer from excessive heating and maintain better mechanical properties. Lasers can weld dissimilar materials with varying fusion temperatures without the need for filler material. Examples include steel-copper, steel-aluminum, aluminum-copper, and steel-nickel.

Do you offer a laser welding service?

We offer a laser welding service to weld complete battery packs. This is ideal if you need to start welding while are waiting for a machine order, if you need a batch of parts welded for prototyping or preproduction, or if you need to validate laser welding in your manufacturing process.