Laser Applications In EV Car Batteries

Electrical cars are all around us. The power source of an electrical car is its Li-ion battery pack. One of the most important parameters for a battery pack is its charge capacity per weight in kWh/kg. This means that battery and car makers want to put in as many 'battery cells' (the basic Li-ion unit that stores charge) as possible, and get rid of anything else, such as metal parts that house together several cells in a 'module', or several modules in a pack, or the battery pack entirely (i.e. going C2V or 'cell to vehicle').

What has that got to do with lasers?

Moving away from a modular approach (cells, modules, battery pack) means that servicing or fixing the battery of an EV car is almost impossible, and therefore the reliability, safety, and structural integrity of the battery must be very high. That is where laser processes come into play.