Special-shaped battery aluminum-plastic film automatic adhesive-coating production line and adhesive-coating process thereof

Abstract

The invention discloses a special-shaped battery aluminum-plastic film automatic adhesive-coating production line and a adhesive-coating process thereof; the production line comprises a machine frame, a adhesive-coating platform, a front round sheet adhesive pasting mechanism, a first adhesive-pasting mechanism, a first adhesive-coating mechanism, a second adhesive-pasting mechanism, a second adhesive-coating mechanism, a reverse round sheet adhesive pasting mechanism and a hot pressing mechanism; the adhesive-coating platform is rotatably arranged on the machine frame; the front round sheet adhesive pasting mechanism, the first adhesive-pasting mechanism, the first adhesive-coating mechanism, the second adhesive-pasting mechanism, the second adhesive-coating mechanism, the reverse round sheet adhesive pasting mechanism and the hot pressing mechanism are respectively correspondingly arranged on the adhesive-coating platform; the adhesive-coating platform rotatably moves to make a special-shaped battery switched among the work stations to successively complete the steps of feeding, front round sheet adhesive pasting, first and third gummed paper pasting, first and third gummed paper coating, second and fourth gummed paper pasting, second and fourth gummed paper coating, reverse round sheet adhesive pasting and hot pressing. The adhesive-coating production line and the adhesive-coating process thereof are applied to automatic adhesive coating of cross sections of aluminum-plastic films of irregular shaped battery side edges.

Description

technical field [0001] The invention relates to the field of intelligent manufacturing, in particular to an automatic encapsulation production line of special-shaped battery aluminum-plastic film and its encapsulation process. Background technique [0002] Polymer lithium-ion battery technology has become more and more mature in recent years. Under the premise of the same capacity, polymer lithium-ion batteries are small in size, light in weight, long in cycle life (more than 1000 times), and have no memory effect (can be used and charged without affecting Performance), widely used in mobile phones, handheld computers, laptops, portable military tools, camcorders, DVD players, and gradually developed and applied to electric vehicles (electric bicycles, motorcycles and automobiles); polymer lithium-ion batteries themselves have Its excellent performance and very wide application prospects are known as the green chemical energy in the 21st century; its successful development m...

AI Technical Summary

Problems solved by technology

[0003] The most common packaging material used in the flexible packaging technology of polymer lithium-ion batteries is aluminum-plastic film. The aluminum-plastic film includes a five-layer structure, the middle is an aluminum film layer, and the outer layers on both sides of the aluminum film layer are nylon material layer and PP material. Layer, the outer layers on both sides and the aluminum film layer are connected by an adhesive layer, and the aluminum film layer can provide support strength for the entire aluminum-plastic film; in actual use, two or more aluminum-plastic films are often stacked Together they are used as packaging materials for polymer lithium-ion battery cells; since the aluminum-plastic film used to package a single cell needs to be made by cutting the entire aluminum-plastic film, the aluminum-plastic film after cutting The aluminum film layer is exposed at the cross-section of the cut; after the aluminum-plastic film wraps the cell, the cross-section of the aluminum-plastic film is also exposed, and the long-term exposure of the aluminum film layer will cause the following problems: 1. The aluminum film layer is exposed to the air for a long time Exposure will cause chemical reactions in the air, resulting in corrosion of the aluminum film layer, making the aluminum-plastic film easily penetrated by burrs around the battery cell; 2. The aluminum film layer of the aluminum-plastic film has a weak voltage, and the polymer lithium-ion battery is assembled on After the aluminum film layer in the electronic product contacts with the bare wires and electronic components in the electronic product, a pressure difference will be generated, which will interfere with the internal circuit of the product; When the exposed aluminum film layer is undergoing shaping steps such as hot pressing, it will be in contact with the hot pressing block because it is a good thermal conductor, which will cause a sharp rise in temperature and affect the battery cell; based on the above problems, it is necessary to replace the aluminum plastic film The cross-section is covered to isolate the contact between the cross-section of the aluminum-plastic film and the outside

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