With the continuous expansion of the power battery and energy storage battery market, the improvement of key production equipment has a crucial impact on the development of the industry. Equipment technology innovation, production efficiency and quality control have become essential key tools to enhance competitiveness. And with the development trend of energy storage batteries towards large cells and large modules, the stacking process is becoming more and more popular in the market.

As an excellent global enterprise in high-end intelligent equipment, Lyric has always regarded technological innovation as its core competitiveness to meet the constantly improving needs of customers for stacking equipment. By providing batch consumer stacking machines for leading enterprises in the fruit chain in the early stage, and then providing power cutting and stacking integrated machines for power leading enterprises in batches, we have now covered various stacking processes: Z-shaped stacking, traditional cutting and stacking integrated machines, laser cutting and stacking integrated machines, and thermal composite stacking machines, achieving full coverage from small wearable batteries to large batteries for power use.

Lyric has created a series of stacking intelligent devices with a deep technical foundation covering the entire production process of lithium-ion batteries. The current power stacking efficiency can reach a maximum of 0.125s/pcs, with an overall alignment of ± 0.3mm. The flying cutting production efficiency can reach 240PPM, with a yield rate of 99.5%. For consumer products, 0.065s/piece can be achieved, with an alignment of ± 0.1mm. The production efficiency can reach 480PPM (a production efficiency of 38m/min). In addition, Lyric's stacking equipment also applies advanced technologies such as integrated Class 10000 dust removal structure and CCD online monitoring, making the production process safer, more consistent, and high-performance, empowering customers to produce lithium-ion batteries with higher energy density, more stable internal structure, higher safety, better rate performance, and longer cycle life.

The key to achieving cost reduction and efficiency increase through equipment integration is the Lyric high-speed thermal composite stacking machine.

The Lyric high-speed thermal composite stacking machine is a stacking equipment that integrates functions such as unwinding, punching, thermal laminating, diaphragm cutting, stacking, cell hot pressing, taping and unloading. In the production process, through the integration of precise tension control, multi-level deviation correction, high-precision visual inspection, high-speed multi stacking and other technologies, compared to the periodic changes in tension between the diaphragm and strip of traditional stacking machines, the diaphragm and strip of high-speed thermal composite stacking machines are continuously unwinding at a uniform speed, with more stable speed and tension, and a smoother surface of the produced cells, And the advanced hot pressing composite of the diaphragm and the electrode can eliminate hidden dangers such as membrane wrinkles and low quality of the electrode, fundamentally ensuring the smooth fitting of each positive and negative electrode reaction interface, simplifying the core making process, integrating equipment integration, and greatly saving equipment space.

Multiple process upgrades significantly improve product yield

The equipment adopts a high-precision stacked CCD automatic vision system, which has the characteristics of fast detection speed and high detection accuracy. It can accurately identify various appearance and size defects and adjust the position of the cutting tool in a timely manner. It can control the production accuracy within ± 0.15mm, thereby controlling the alignment accuracy of the stack within ± 0.3 mm. It can achieve 100% alignment detection of each corner of each layer of electrode, reducing the processing accuracy difference between electrode cutting and stacking, The monitoring of membrane wrinkles and poor alignment of stacking has greatly improved product defect detection capabilities, further enhancing product safety.

Accurate tension control and multi-level deviation correction

The material belt correction adopts a three-level correction method, which helps to accurately control the tension of the diaphragm through tension swing rods and tension detection sensors. The tension value is controlled between 0-15N, thereby solving the problem of excessive fluctuation of diaphragm tension. Introduce a regional laser sensor to detect the position of the diaphragm edge, while strictly controlling its correction accuracy to avoid problems such as membrane wrinkles caused by excessive single correction. Set up an ion air bar to ensure that both sides of the diaphragm remove static electricity, and residual static electricity is controlled below 300V to avoid electrostatic adsorption. Strictly control the precision of the roller processing, ensuring that when the length of the roller is 400mm, its parallelism does not exceed 0.04mm, thus ensuring that the parallelism problem of the diaphragm is effectively solved, and thus perfectly solving the problem of diaphragm wrinkles.

Class 10000 dust removal mechanism

The FFU dust removal system is installed inside the equipment, with a total of 27 dust removal points and a dust removal rate of 99%; Dust size: 5-50 μ M. Each area shall be isolated from small environments, and the cleanliness requirement under equipment operating conditions shall reach 0.5 μ M ＜ 5000 levels, with the maximum FFU wind speed not less than 1m/s. The wind speed of the negative pressure pipeline at the end of each dust removal point is ≥ 15m/s. The noise of the negative pressure fan is less than 75db at a position of 1.5m, which controls dust and reduces noise to prevent dust scattering. The equipment space has a higher dust cleanliness, ensuring high-quality production of the product.

Continuously Leading New Energy Cost Reduction and Efficiency Enhancement through Innovation

Next, Lyric will integrate laser slicing technology into the stacking equipment, achieving the integration of laser slicing, thermal lamination, and stacking. The flexible control characteristics of laser cutting paths can achieve one click conversion of slicing, greatly improving the OEE of the equipment; Integrated integration can once again reduce equipment footprint, save labor and tool loss costs, reduce process flow, improve product production efficiency, and reduce equipment investment costs and material losses. Operational cost savings>50%.

In the future, Lyric will continue to uphold the concept of independent innovation, continuously improve the performance of equipment, and make greater contributions to the development of the lithium-ion battery industry. At the same time, Lyric will also strengthen cooperation with partners, jointly promote innovation and development of stacking equipment, make more contributions to the prosperity of the industry, and explore the secrets of efficient battery production and creating high-quality batteries together!