Laser welding of aluminum battery tab to variable Al/Cu busbars in Li-ion battery joint

<abstract> <p>The trend is shifting from internal combustion engines (ICEs) to battery electric vehicles (BEVs). One of the important joints tabs busbar connection. Aluminum (Al) and copper (Cu) are among common materials for tab manufacturing. A wide range research shows that laser welding a very promising technique. It can enhance module's safety reliability owing its unique properties. The desired strength, ductility, fatigue life as well electrical resistivity crucial attain in dissimilar aluminum BEVs. Therefore, an adequate understating principal factors influencing Al–Cu joint properties prime importance. current review paper provides information on brazing with thin thicknesses. Also, defects, effect joining, laser-materials interaction during process discussed. Laser parameters adjustment (e.g., power or speed), operational mode, proper choice base metals, alloying elements, filler etc.) may terms mechanical properties.</p> </abstract>