Laser cutting device for battery pole piece

Abstract

The invention aims to provide a laser cutting device for a battery pole piece with high cutting quality and high practicability. The laser cutting device for the battery pole piece comprises a control unit and a laser cutting head system which consists of a laser generator and a laser cutting head, and is characterized in that a vacuum adsorption device is arranged below the laser cutting head system; and a relative motion along horizontal direction can be carried out between the laser cutting head system and the vacuum adsorption device. When the battery pole piece is cut, the battery pole piece is put on the vacuum adsorption device first and is fixed by vacuum action; then the relative motion between the laser cutting head system and the vacuum adsorption device is controlled according to a set program; and meanwhile, the set program also controls the operation of the laser cutting head system, namely cutting the battery pole piece into a required shape. The laser cutting device has a simple structure, higher cutting quality and higher efficiency of the battery pole piece because a pertinent design is made according to the characteristics of the battery pole piece.

Description

technical field [0001] The invention belongs to the technical field of automobile manufacturing, and in particular relates to a cutting device used in the production process of power battery pole pieces. Background technique [0002] The power battery pole piece used in hybrid or electric vehicles is to uniformly coat the lithium iron phosphate material on both sides of copper foil (negative electrode) and aluminum foil (positive pole), and then cut the pole piece into a specific shape by cutting equipment. At present, most of the cutting equipment used in domestic automobile manufacturers adopts punching and rolling cutting equipment. The side powder is seriously dropped, which seriously affects the quality of the battery pole piece. In addition, the dies in these two cutting devices need to be replaced frequently, which is not conducive to large-scale continuous production, and also increases the maintenance cost of the equipment in the later stage. Contents of the inve...

AI Technical Summary

Problems solved by technology

At present, most of the cutting equipment used in domestic automobile manufacturers adopts punching and rolling cutting equipment. Severe side powder drop, which seriously affects the quality of battery pole pieces

In addition, the dies in these two kinds of cutting equipment need to be replaced frequently, which is not conducive to large-scale continuous production, and also increases the maintenance cost of the equipment in the later period

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