Cell insulation material change: PET blue film is fading, UV spraying is coming strongly

At present, the cell manufacturing industry is booming, the choice of insulation materials has become a key link, and the situation of PET blue film is becoming more difficult, and it is gradually moving toward the edge of elimination. PET blue film has exposed some fatal defects in the course of long-term use. Its stability in high temperature and high humidity environment is poor, easy to hydrolysis reaction, resulting in a significant decline in insulation performance. Moreover, the thickness and weight of PET blue film is relatively large, which is undoubtedly a disadvantage for the pursuit of lightweight and miniaturized cell design, which will increase the overall weight and volume of the cell and reduce energy density.

At the same time, the cell insulation UV spraying technology is rising rapidly with its unique advantages. UV spraying technology can achieve the precise control of ultra-thin coating, in the premise of ensuring the insulation effect, to minimize the additional burden of the cell, improve its energy density and performance. In addition, the coating formed by UV spraying has good flexibility and wear resistance, and can adapt to the volume change and mechanical vibration of the battery cell during the charge and discharge process to ensure the integrity and stability of the insulation layer. From the perspective of cost effectiveness, although the initial investment of UV spraying equipment is high, with the promotion of large-scale production, its unit cost is gradually reduced, and due to its efficient production efficiency and low material loss, the comprehensive cost advantage is becoming more obvious.

With the strong entry of 19 + UV Coatings & Engineering company, the painting new track is showing a prosperous scene. These companies have brought a wealth of technical resources and innovative thinking, accelerating the popularization and application of UV spray technology in the field of cell insulation. They further improve the performance and quality of UV coatings by continuously optimizing the formulation and spraying process, so that it can meet higher standards of cell insulation requirements. Driven by market competition, UV spraying technology will continue to break through itself, gradually replace the traditional PET blue film, become the mainstream choice in the field of cell insulation, provide solid technical support for the sustainable development of the cell manufacturing industry, and promote the entire industry to a more advanced, efficient and reliable direction.