A battery packaging process

Abstract

The invention discloses a battery packaging process, which includes the following steps: applying glue to the bottom surface of kraft paper, and then adding base paper to the bottom surface of kraft paper; using die-cutting technology to die-cut the kraft paper into multiple pieces; using an automatic film pasting machine to A piece of the kraft paper is attached to each battery core, and the glued side of the kraft paper is attached to the outer surface of the battery core; first, the kraft paper is made into self-adhesive kraft paper. Both kraft paper and self-adhesive kraft paper can be made. When stored in paper rolls, the sensitivity to air humidity is greatly reduced. The storage process is resistant to pressure, and there is no risk of pressure deformation. The space utilization rate is high; secondly, the film cutting process is used to die-cut the kraft paper into multiple pieces of paper. Compared with the traditional process, the production efficiency is increased by more than 30 times, and the material utilization rate is also increased by nearly 90%; thirdly, an automatic film laminating machine is used to attach each piece of kraft paper to the outer surface of the battery core, eliminating the need for kraft paper tube coating process The assembly fluctuation situation can produce more efficient and high-quality batteries.

Description

Technical field [0001] The present invention relates to the field of battery technology, and in particular to a battery packaging technology. Background technique [0002] In the process of assembling chemical power cells into battery packs, for battery packs that require high-rate charging and discharging, using plastic materials such as PVC or PET for insulation has problems with material shrinkage and aging. Therefore, kraft paper tubes are usually used to wrap the cells for insulation. Avoid shrinkage, aging and other problems of plastic materials. But first of all, due to the complex production process and low degree of automation of kraft paper tubes, the labor cost of kraft paper tube production is high, the material utilization is low, the finished product qualification rate is low, and the final kraft paper tube production cost is high. Secondly, after the kraft paper tube is formed, it needs to occupy A large amount of space leads to high storage and transportatio...

AI Technical Summary

Problems solved by technology

But first of all, due to the complex production process and low degree of automation of kraft paper tubes, the labor cost of kraft paper tube production is high, the material utilization is low, the qualified rate of finished products is low, and the final production cost of kraft paper tubes is high. Secondly, after kraft paper tubes are formed, it takes A large amount of space leads to high storage costs and high transportation costs. Thirdly, the process of assembling the kraft paper tube to the battery cannot be effectively automated, resulting in the cost of using the kraft paper tube. Based on the above reasons, the kraft paper tube is used to cover the battery insulation. high total cost

In addition, under the influence of air humidity, the inner diameter of the kraft paper tube will become larger and smaller, which will affect the assembly effect, and because the paper tube is easily deformed, it may even cause unusable conditions. Therefore, the process of using kraft paper tube packaging is easy. The quality of battery products fluctuates greatly

[0003] In summary, due to the high cost of kraft paper tube-coated battery insulation, which is easy to affect the quality of battery products, a new battery packaging process must be proposed, which is low-cost and will not affect the quality of battery products. packaging process

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