Ultrasonic welding device for battery tab and connecting piece

Abstract

The invention relates to an ultrasonic welding device for a battery tab and a connecting piece. The ultrasonic welding device comprises a movable ultrasonic welding assembly, a battery cell tool, a conveying assembly, a dust removal assembly and a large plate. The ultrasonic welding assembly, the conveying assembly and the dust removal assembly are sequentially and fixedly arranged on the large plate. The battery cell tool is installed on the conveying assembly. The battery cell tool moves up and down to be matched with the ultrasonic welding assembly for welding. The dust removal assembly covers the battery cell tool for dust removal. The ultrasonic welding assembly is used for welding the square aluminum shell battery tab and the connecting piece. The battery cell tool is used for positioning the connecting piece and a protection piece and adjusting the distance between a roll core A and a roll core B. The dust removal assembly is used for dust removal in the welding process, battery roll core positioning, structural piece connecting piece and protection piece positioning, ultrasonic welding and dust removal work can be completed, in this way, in the welding process, the connecting piece and the protection piece can be positioned, product scrapping is prevented, and dust removal can be effectively conducted.

Description

technical field [0001] The invention relates to the technical field of lithium-ion battery production and manufacturing, in particular to an ultrasonic welding device for battery lugs and connecting pieces. Background technique [0002] At this stage, in the process of assembling lithium battery cells into batteries, the assembly of lithium battery cells has always been a difficult problem. Many companies mostly use single welding marks when facing the process of butterfly welding. With the increase of battery capacity, the battery The thickness is getting thicker and thicker, and a single solder print can no longer meet the development requirements. [0003] In the assembly process of traditional welded structural parts, the connecting piece and protective piece cannot be positioned, resulting in product scrapping, and the inability to effectively remove dust leads to a high battery short-circuit scrapping rate, which seriously affects the consistency of the product. There...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to overcome the problems that the traditional welded structural parts cannot locate the connecting piece and the protective piece during the assembly process, resulting in product scrapping and the inability to effectively remove dust.

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