Battery cell cold-hot pressing mechanism

Abstract

The invention discloses a battery cell cold-hot pressing mechanism. The battery cell cold-hot pressing mechanism comprises a substrate, a top plate as well as a supporting platform formed by a plurality of stand columns arranged between the substrate and the top plate, wherein the substrate is fixedly provided with a first pre-pressing plate, the top plate is fixedly provided with an air cylinderinstalling plate, the air cylinder installing plate is provided with a battery cell laminating air cylinder, a piston rod of the battery cell laminating air cylinder is fixedly provided with a secondpre-pressing plate, the battery cell laminating air cylinder is used for driving the second pre-pressing plate to laminate battery cells on the first pre-pressing plate; and both the upper surface ofthe first pre-pressing plate and the lower surface of the second pre-pressing plate are coated with a porous anti-sticking plate, and the side surfaces of the first pre-pressing plate and the second pre-pressing plate are respectively provided with air inlet holes communicated with pores. The battery cell cold-hot pressing mechanism of the invention can be used for performing hot-pressing and cold-pressing treatment for the battery cell; and moreover, the battery cell is unlikely to adhere on the pressing plate, so that the production efficiency of the battery cell is improved, and the laminated battery cell is uniform in thickness and free from deformation.

Description

technical field [0001] The invention relates to the field of polymer lithium battery production, in particular to a cell cold and hot pressing mechanism. Background technique [0002] Lithium-ion batteries have the advantages of high voltage, high specific energy, many cycle times, and long storage time. They are not only widely used in portable electronic devices such as mobile phones, digital cameras and laptop computers, but also widely used in electric vehicles, electric Large and medium-sized electric equipment such as bicycles and electric tools. In addition, as a mature lithium-ion battery product, it has been widely used in electronic products and power energy industries. Therefore, the performance and safety requirements of lithium-ion batteries are getting higher and higher. [0003] In the production of lithium batteries, after the top and side of the battery are sealed or formed, processes such as hot and cold pressing are carried out, which are mainly used for...

AI Technical Summary

Problems solved by technology

[0004] In the current hot and cold pressing mechanism of the battery cell, the battery cell is easy to stick to the pressing plate during the pressing process, and the battery cell needs to be removed from the pressing plate manually, which not only reduces the production efficiency of the battery cell, but also easily causes damage to the battery. Problems such as core deformation and uneven thickness affect the quality of the battery

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