Composite current collector welding auxiliary mechanism

The utility model discloses a composite current collector welding auxiliary mechanism which comprises a cover plate and a base plate, the cover plate and the base plate are attached in an intermittent mode, a puncture structure is arranged on the attaching face of the cover plate, and a puncture hole for the puncture structure to penetrate is formed in the position, corresponding to the base plate, of the base plate. According to the tab puncturing tool disclosed by the utility model, the welding of a composite current collector with less than 100 layers and a post terminal can be met, so that the one-step forming of the welding of a battery cell is realized; after the tool is used for puncturing, the phenomena of splashing and burst points are avoided in the welding process; the tool can be conveniently integrated on equipment, so that the welding takt of the equipment is more efficient. 本实用新型公开了一种复合集流体焊接辅助机构，包括盖板和基板，所述盖板与基板间歇贴合，位于盖板的贴合面上设置有穿刺结构，相对应的基板处设置有供穿刺结构刺入的穿刺孔。本实用新型中的穿刺极耳工装，可满足100层以内的复合集流体与极柱的焊接，从而实现电