Top and side packaging integrated machine and packaging method for lithium battery soft package

Abstract

The invention relates to the field of packaging of a lithium battery soft package, and in particular to a top and side packaging integrated machine and packaging method for the lithium battery soft package. The packaging integrated machine comprises a machine table and a packaging device, wherein the packaging device comprises a lifting mechanism disposed on the machine table, an upper sealing knife which is disposed on the lifting mechanism and lifted with the lifting mechanism, and a lower sealing knife which is disposed on the lifting mechanism and corresponds to the upper sealing knife; the upper sealing knife and the lower sealing knife are in a right-angled plate-like structure; the packaging device further comprises a telescopic mechanism and an extrusion mechanism; the telescopicmechanism is closely disposed at an inner right angle of the upper sealing knife; the extrusion mechanism is disposed on the lifting mechanism through the telescopic mechanism; the lifting mechanism drives the telescopic mechanism and the extrusion mechanism to perform displacement; and the telescopic mechanism drives the extrusion mechanism to perform displacement. Compared with the prior art, the upper sealing knife and the lower sealing knife are in the right-angled plate-like structure, the top and side edge-sealing can be completed by only needing heat sealing at a time; the secondary extrusion is performed by disposing the extrusion mechanism; the bad condition such as expansion of the lithium battery soft package can be avoided and the qualified rate of the product is improved.

Description

technical field [0001] The invention relates to the field of lithium battery soft pack packaging, in particular to a lithium battery soft pack top and side packaging integrated machine and a packaging method. Background technique [0002] The existing lithium battery soft packs generally use aluminum-plastic film as the packaging material. The packaging material is composed of three layers of ON (nylon layer), AL, and CPP, and each layer is bonded by an adhesive agent; the surface layer ON The layer is a decorative layer, which prevents the AL from being scratched and protects the AL layer; the middle layer is the AL layer that forms the shape and prevents moisture intrusion; the inner CPP layer is an electrolyte-resistant layer. [0003] A lithium battery top and side seal integrated machine disclosed in Chinese utility model CN201521125498.0 includes a press, a workbench, a motor, a rotating support plate, a positioning fixture, a limit block, a first cylinder, a detection...

AI Technical Summary

Problems solved by technology

[0004] When the above-mentioned lithium battery top and side sealing integrated machine packs the lithium battery soft pack, it adopts the method of top sealing first and then side sealing to pack the lithium battery, which will cause the top edge of the lithium battery soft pack to be sealed. Two hot pressings were carried out at the junction with the side sealing edge, which caused the CPP layer to be dissolved twice, so that the layer between the ON layer and the AL layer was delaminated, and the CPP layer and the AL layer were easily peeled off, resulting in the leakage of the lithium battery soft package. Liquid, flatulence, corrosion and other defects, the product qualification rate is low

In addition, the encapsulation quality of this lithium battery soft package encapsulation device is relatively poor, and the encapsulation efficiency is also low

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