Let the "lithium" journey go further, with hardcore support from servo systems for lithium battery production.
Release time:
2024-12-28 16:09
Source:
The servo system, with its high precision, high response, and strong stability control performance, has become a golden partner for lithium battery equipment manufacturers!
1 Coater
The coater is the equipment that evenly coats the positive and negative electrode materials onto metal foil.
The positioning accuracy of the servo system reaches ±0.01mm or even higher, allowing precise control of the lateral movement of the coating head to ensure it applies within the width range of the electrode.
At the same time, the servo system can accurately adjust the operating speed of the coating head according to the required coating speed, ensuring the thickness accuracy and flatness of the electrode coating, which helps improve the performance consistency of lithium batteries.
2 Roll Press
The roll press is used to compact the coated electrodes to increase their density.
The servo system mainly controls the pressure and gap of the rollers in the roll press. It can precisely adjust the pressure between rollers based on different lithium battery electrode thicknesses and target compaction densities, with a pressure control accuracy of ±0.1MPa.
Moreover, during the process of electrodes passing through the roll press, the servo system can maintain synchronous rotation speed of the rollers, ensuring that electrodes receive uniform pressure, avoiding excessive or insufficient local compaction, thus ensuring the quality and performance of the electrodes.
Through micron-level precise control, the servo system ensures that each electrode's performance and shape meet micron-level precision requirements, laying a solid foundation for subsequent assembly processes.
1 Winding Machine
The winding machine mainly winds positive and negative electrode sheets and separators in a specific order and number of layers, which requires extremely high winding precision and speed.
The servo system ensures that there are no stretching, wrinkling, or misalignment issues during winding by precisely controlling the rotation speed and tension of the winding shaft.
Especially when winding cells of different specifications, the rotation speed of the winding needle needs to be quickly adjusted based on cell size and material characteristics while maintaining stability during adjustments to ensure tightness and consistency in cell winding.
2 Stacking Machine
The stacking machine must accurately stack each electrode sheet and separator together.
The servo system can control the picking, moving, and placing actions of electrodes and separators with a positioning accuracy of about ±0.1mm, ensuring that each electrode sheet and separator can be accurately stacked in predetermined positions to form high-quality cells.
Moreover, the rapid response characteristics of the servo system allow the stacking machine to maintain efficient and stable operation at high speeds, increasing stacking speed for cells.
summarize
The constant tension and speed control functions of the servo system make the layered structure of cells tighter and more uniform, effectively enhancing battery energy density and cycle life.
1 Formation and Capacity Integration Machine
Lithium batteries are not charged when assembled; they must be charged to activate.
The fully automatic loading and unloading workstation in the formation and capacity integration machine is precisely controlled by a servo system to meet precise positioning needs for plate handling, cell fixture positioning, cell stacking, etc., ensuring assembly quality and formation effects for batteries.
At the same time, the servo's high overload stability control capability is very suitable for frequent start-stop operations and high-load working scenarios in battery formation equipment.
2 Sorting Machine
Lithium battery sorting usually requires processing a large number of cells in a short time to meet production efficiency requirements.
The servo system has fast response speed and high acceleration performance, enabling it to quickly execute sorting actions based on detection results to rapidly separate qualified from unqualified cells.
During sorting, sorting mechanisms need to frequently start-stop and reverse direction to send cells to different locations. The servo system can withstand high load variations and frequent acceleration-deceleration movements, ensuring quickness, accuracy, and stability in sorting actions while reducing mechanical wear and energy consumption, extending equipment lifespan.
summarize
The automatic gain adjustment control performance of the servo system ensures stability in formation capacity as well as precision in sorting, safeguarding product safety and reliability for batteries.
It is evident that the application of servo systems in lithium battery production equipment not only significantly enhances production efficiency and product quality but also promotes continuous progress and innovation in lithium battery manufacturing technology. It acts like a pair of precise and powerful 'hands,' meticulously refining every detail in the birth process of lithium batteries, injecting strong momentum into the vigorous development of new energy industries.
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