9. Battery and EV Component Marking

What it is: Battery cell identification, module tracking, bus bar marking, and thermal management component labeling.

How lasers are used:

• Fiber laser marking on battery cell casings (cylindrical, prismatic, pouch)
• 2D DataMatrix codes on bus bars and current collectors
• Annealed marks on aluminum and copper battery components
• UV marking on polymer battery enclosures

Critical for EV:

• Full cell-to-pack-to-vehicle traceability is essential for safety and warranty management
• Marks must survive battery manufacturing processes (electrolyte fill, formation cycling)
• Rapid growth: EV battery marking is one of the fastest-growing laser marking applications globally