BATTERY CELL, MANUFACTURING METHOD THEREOF, AND DIRECT WATER-COOLING BATTERY MODULE COMPRISING THE SAME

The present invention relates to a battery cell, a manufacturing method thereof, and a battery module comprising the same, and a battery cell related to one example of the present invention comprises an electrode assembly, a case accommodating the electrode assembly, a plating layer formed on an outer surface of the case, a scratch region formed by removing a partial region of the plating layer, and a porous coating layer provided to surround the scratch region and containing a sacrificial material having a higher metal ionization tendency than that of the plating layer.