Welding equipment with welding mask for secondary battery cell corners

Abstract

A secondary battery cell corner welding apparatus (1) comprising: a mask (30) covering the surface of a busbar assembly (20); a fixing member (40) fixed to the busbar assembly (20); a holding member (50) supporting the mask (30) and connected to the fixing member; and a laser light generator (60) irradiating laser light (L) onto the busbar assembly (20), characterized in that the mask (30) comprises: a mask body; and a plurality of light-transmitting portions (32) extending through the mask body, and between the light-transmitting portions (32), the portion forming the mask body forms an acute angle with the normal of the light-transmitting portions (32), and the laser light generator (60) further comprises a driver (61).