Analysis of Power Battery Coating Curing Technology: Is UV RoomTemperature Curing the Optimal Choice?
Core Analysis of Three Curing Methods
1. RoomTemperature Curing
Roomtemperature curing requires no additional temperature control equipment and can form films at 20-25℃. Its core types include UV light curing and roomtemperature airdrying curing. Among them, Lankwitzer UV coatings adopt advanced light curing technology, which uses ultraviolet irradiation to activate photoinitiators in the coatings, promoting rapid crosslinking of prepolymers and monomers to achieve instant film formation. Roomtemperature airdrying curing relies on the slow reaction between the coating and atmospheric oxygen and moisture, resulting in a long curing cycle. It is only suitable for scenarios with lowefficiency requirements.
2. LowTemperature Curing
With a curing temperature of 30-60℃, lowtemperature curing requires mild heating assistance. It is suitable for temperaturesensitive scenarios such as softpack batteries and tab packaging, as it can avoid material deformation or oxidation. However, it still needs simple temperature control equipment, and its efficiency is lower than that of UV curing.
3. HighTemperature Curing
As a traditional mainstream method, hightemperature curing operates at 80-180℃ and achieves resin crosslinking through hightemperature baking. Although it forms films thoroughly, it has high energy consumption and requires largescale drying tunnels. High temperatures are prone to reducing the activity of battery cell active materials, deteriorating electrolytes, and increasing environmental protection costs due to VOC emissions.
Core Advantages of Lankwitzer UV Coating
RoomTemperature Curing Protect battery performance: Roomtemperature curing avoids hightemperature damage, significantly extending the cycle life of battery cells and controlling the capacity attenuation rate within 0.5%.
Improve production efficiency: Curing can be completed in about 3 seconds with ultraviolet irradiation, reducing product changeover time from 1.5 hours to less than 2 minutes, which is suitable for largescale mass production.
Energy conservation, environmental protection, and cost reduction: Energy consumption is only 1/5 to 1/10 of that of hightemperature curing. The solventfree formula contains no VOCs, and excess spray adhesive can be recycled to lower energy costs.
Adapt to diverse forms: It is not restricted by battery size and shape, with a curing uniformity deviation of ＜±2%, meeting the needs of various battery types such as prismatic, cylindrical, and blade batteries.
Excellent coating performance: It has a temperature resistance range of 40℃~120℃, a breakdown voltage resistance of ＞50kV/mm, and can resist corrosion in complex environments.
New Industry Development Trends
With the industry's increasing requirements for safety, efficiency, and environmental protection, UV coating roomtemperature curing technology is accelerating the replacement of traditional curing methods. In the future, relying on formula optimization and intelligent equipment upgrades, its application scenarios will be further expanded, providing technical support for the sustainable development of the new energy vehicle industry. Would you like me to provide a concise English summary of this technical document for quick reference?