Battery cell lamination device

Abstract

The invention discloses a battery cell lamination device. The battery cell lamination device comprises a lamination assembly and a swing assembly; the lamination assembly comprises a lamination tablewhich is provided with a working surface and side surfaces, and the side surfaces comprise a first side surface and a second side surface; and the swing assembly comprises a swing arm shaft which is fixed above the working surface and can rotate around a first axis; a middle piece of which one end is connected with the swing arm shaft; a guide mechanism connected with the other end of the middle piece and comprises a first guide piece and a second guide piece, wherein a pole piece belt is located in a gap between the first guide piece and the second guide piece; and a supporting piece which isobliquely arranged relative to the guide piece. The swing arm shaft rotates around the first axis, the supporting piece can make contact with the first side face and the second side face, and the pole piece belt can be laid on the working surface along the laying direction perpendicular to the direction of the first axis. According to the present invention, the Z-shaped guide of the pole piece belt can be realized through the rotary motion of the swing assembly, so that the production efficiency of the battery cells is effectively improved.

Description

technical field [0001] The invention relates to the technical field of lithium-ion batteries, in particular to a cell stacking device. Background technique [0002] Lithium-ion batteries usually use laminated cells: the separator is folded in a "Z shape", and then the positive and negative pole pieces are inserted. This type of cell usually requires about 50-60 layers of laminations (or even more). At present, the "Z-type lamination method" is often used, and the lamination table moves to the left and right to drive the diaphragm to fold. The moving distance required for the stacking table to move to the left and right is too long, resulting in a longer cycle of completion of the battery cells, which cannot meet the existing production needs. [0003] In addition, in the actual production process, in order to increase the lamination speed, many equipments are equipped with lamination stations, which makes the equipment bulky. Each stacking station is used to stack one bat...

AI Technical Summary

Problems solved by technology

The moving distance required for the stacking table to move to the left and right is too long, resulting in a longer cycle of completion of the battery cells, which cannot meet the existing production needs

[0003] In addition, in the actual production process, in order to increase the lamination speed, many equipments are equipped with lamination stations, which makes the equipment bulky

Each stacking station is used to stack one battery cell. After the stacking of a single station is completed, it needs to be shut down, and then the battery cell is taken out from the station for the blanking process, so that the subsequent stacking of the battery cell can be carried out, which affects the stacking process. chip efficiency

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