Lithium battery cell multi-piece lamination equipment and lamination method

Abstract

The invention discloses equipment for laminating multiple lithium battery cells. The equipment comprises a laminating table, a diaphragm unwinding mechanism, a laminating device and position correction platforms, wherein the diaphragm unwinding mechanism and the laminating device are arranged above the laminating table, and the laminating device is used for introducing a diaphragm of the diaphragmunwinding mechanism into the laminating table, the corresponding position correction platforms are arranged on the left side and the right side of the laminating table respectively and used for correcting the positions of transmission pole pieces on the left and right sides. A lamination process of simultaneously stacking a plurality of pole pieces on the same lamination table is adopted, so lamination efficiency of the lamination device is greatly improved; a laminating process of covering a plurality of pole pieces with diaphragms at a time is adopted, a plurality of pole pieces are fed simultaneously, and a plurality of pole pieces are discharged simultaneously. By improving processing efficiency of the laminating, laminating, loading and unloading processes, the manpower, material resources and time cost of each process are saved, the laminating duration of the lithium battery cell is greatly shortened, the cost expenditure is reduced, and economic benefits and competitiveness ofenterprises are improved.

Description

technical field [0001] The invention relates to a lithium battery stacking process, more specifically to a multi-sheet stacking device and a stacking method for lithium battery cells. Background technique [0002] Lithium battery lamination technology is a lithium battery manufacturing technology that uses a separator to separate the positive and negative electrodes (positive electrode sheet, negative electrode sheet), and sequentially stacks the electrode sheets and separators to make it a battery cell. Its basic principle and working process are as follows: use the diaphragm assembly to pull out the coiled diaphragm, cover the diaphragm space between the positive and negative electrodes through the reciprocating motion of the stacking table or the diaphragm assembly, and at the same time, use the manipulator or other transfer devices to move the positive and negative electrodes. The positive and negative electrodes are alternately placed between the diaphragms, and the pos...

AI Technical Summary

Problems solved by technology

[0003] The existing stacking device adopts a single pole piece stacking method, and only one pole piece is placed on the stacking table at a time by a robot or other transfer device for stacking, and multiple pole pieces cannot be placed on the same stacking table at the same time , it is not possible to stack multiple pole pieces at the same time, resulting in low lamination efficiency

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