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The explosive growth of the coating head industry - the threshold for high-precision processing is not low
11-12
As the global environment worsens and various extreme weather phenomena occur frequently, various countries have begun to pay attention to environmental issues and have introduced strict regulations on pollutant emissions. In order to protect the ecological environment, improve the energy structure, speed up the transition away from dependence on traditional energy, especially oil, and achieve the goal of carbon peaking and carbon neutrality as soon as possible, many countries are developing new energy technologies.
In recent years, new energy vehicles have developed rapidly around the world, and the field of electric vehicles and power batteries may experience explosive growth in the next decade. As the core hardware of electric vehicles, the market demand for power lithium batteries is huge.
In the production process of power lithium batteries, the execution quality of Youdao process highly affects the consistency, safety and life cycle of the finished battery. It is the core link in the manufacturing of lithium battery pole pieces - the slit extrusion coating process. . Slit extrusion coating refers to using a coating machine to evenly coat the stirred slurry on the metal foil through extrusion and drying it to form positive and negative electrode sheets.
Slit extrusion coating has the advantages of high precision, uniform coating, and is suitable for larger width coatings. The difficulty lies in the high accuracy and maintenance requirements of the coating machine. In particular, the coating head, the key component of the coating machine, determines the quality and uniformity of pole piece production and is the highest value-added part of the coating machine.
The lip part of the coating head has extremely high requirements. During coating, the slurry flows through the inner lip surface, is extruded from the slit between the upper and lower lips, and is coated on the foil. The performance indicators of the lip directly affect coating effect.
Source of the above information: Sohu public platform. If there is any infringement, please contact us and it will be deleted.
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