Lithium-ion battery stacking device

Abstract

The invention provides a lithium-ion battery stacking device, which includes a film releasing mechanism, a stacking mechanism and a film receiving mechanism arranged in sequence, the film releasing mechanism is used to load the diaphragm and release the diaphragm, and the stacking mechanism is used to The positive electrode sheet and the negative electrode sheet are bonded to the separator, and the lamination mechanism is used to stack the laminated positive electrode sheet, negative electrode sheet and separator to form a lithium ion battery, wherein the separator is vertical to the horizontal Direction is released from the film release mechanism in turn, and after lamination in the lamination mechanism, the lamination is performed in the film receiving mechanism. The lamination mechanism includes a double-sided folder for clamping the positive electrode sheet and the negative electrode sheet. With the diaphragm, the positive and negative electrodes attached to the surface of the diaphragm are rotated and sent to the film receiving mechanism.

Description

technical field [0001] The invention relates to a lithium ion battery stacking device, in particular to a vertical Z-shaped stacking device and a stacking method. Background technique [0002] Lithium batteries are developing towards high power. At present, high-power lithium batteries are often made by separating the positive and negative electrodes with a diaphragm, and the diaphragm and the electrode are repeatedly overlapped. Each battery requires dozens or even hundreds of pairs of electrodes to be stacked. Yes, the workload is very large. [0003] The lithium-ion battery stacking machine generally uses the manipulator to move left and right, absorb the pole pieces in the positive and negative pole box, alternately put down the pole pieces on the stacking table, and at the same time make the isolation film move left and right with the suction cup frame and fold repeatedly to realize The stacked assembly of the battery cell finally forms a complete battery cell; the exi...

AI Technical Summary

Problems solved by technology

[0004] However, the lithium-ion battery lamination machine in the prior art has a very serious problem of stripping, resulting in multiple sheets in the subsequent lamination body, and the dust on the surface of the positive and negative electrodes is not easy to remove, causing mutual pollution, which affects the quality of the lithium-ion battery. performance

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