One cru­cial aspect is the pre­ci­sion of the laser beam, which can be focused specif­i­cal­ly on the areas to be weld shut. This pro­duces the finest weld seams, which are of enor­mous impor­tance in par­tic­u­lar in appli­ca­tions with small bat­tery cells. The pre­cise con­trol of the laser beam also enables the adjust­ment of the weld­ing para­me­ters in order to join dif­fer­ent mate­ri­als and thicknesses.

The high ener­gy con­cen­tra­tion of the laser beam ensures fast and effi­cient heat trans­fer dur­ing the weld­ing process. This reduces the ther­mal load of the adja­cent areas and min­i­mizes defor­ma­tions or dam­age to the bat­tery com­po­nents. The con­tact­less nature of the laser beam also pre­vents pos­si­ble con­t­a­m­i­na­tions or wear, which can occur with con­ven­tion­al weld­ing methods.