Laser Marking Applications for Batteries

Data matrix code being laser marked on battery casing

There are hundreds of battery cells, modules, and other parts in the battery pack that need to be identified for traceability. Laser marking is an outstanding method to create permanent identifiers at a high speed. Unlike other traditional marking methods, laser marked identifiers withstand various stresses, such as heat and chemicals (electrolytes, cooling liquids, adhesives, silicones).

Laser marking can create markings on electrodes, cases, battery modules and packs for individual serial data encoded in machine-readable data matrix codes.

Laser marking benefits

  • Permanent
  • Easy to read identifiers
  • Precise and consistent results
  • No consumables
  • Low maintenance technology
  • Green process

Laserax benefits

  • Quick and automated changeovers
  • Fastest laser markers on the market
  • Complete solutions (Class 1 certified laser safety, fume extraction, vision, automation, etc.)
  • High-quality hardware and software components (including ultra-precise scanners)

Laser marking on stainless steel battery component Marking tests on stainless steel

Using LXQ and LXQ-HP fiber lasers, Laserax performed laser marking tests on battery cell cans made of stainless steel. The picture that follows shows the result of one of these tests.

The marking times that follow include the PLC’s communication delays, hence representing the real part-to-part takt time for the marking operation.

 

Stainless steel marking times

Marking 50W 100W 200W 300W
16x16 DMC
(3x3 mm)
250 ms
(240 parts/min)
160 ms
(375 parts/min)
110 ms
(545 parts/min)
100 ms
(600 parts/min)
22x22 DMC
(4x4 mm)
400 ms
(150 parts/min)
240 ms
(250 parts/min)
170 ms
(352 parts/min)
140 ms
(428 parts/min)

Download the technical paper