The use of paints and coatings in EV batteries is growing in popularity because of their vital role in safety and thermal management. These coatings help to prevent overheating by increasing heat dissipation and lowering the risk of thermal runaway, which can cause fires. Advanced cooling technologies, such as thermally conductive coatings, improve battery efficiency by ensuring optimal operating temperatures. As EV sales increase, the industry recognizes the importance of dependable, high-performance coatings for protecting and cooling battery systems. The growing focus on EV battery coatings is also driven by the need to reduce battery manufacturing costs, which can account for up to 30% of an EV’s total cost.
The critical need is creating a growing opportunity for businesses, and the current trend is focused on dry coating technology. For instance, the start-up Anaphite (UK) has concentrated on the dry-coating technology, reducing energy costs and environmental impact. They received $1.69 million earlier in March, and in October, they received approximately $11 million in a new funding round. This demonstrates how important the technology can be in resolving a significant problem that is delaying the EV industry’s rapid expansion. By 2028, LG Energy Solution (South Korea) intends to start producing its new dry coating technology for batteries on a large scale. By removing the expensive drying step, this method may lower production costs by about 19%.
As part of its TEGO® Therm product line, Evonik (Germany) is launching three new additives to improve the heat protection of EV battery covers and cases. The product line offers low thermal conductivity, excellent water resistance, increased mechanical strength, and improved thermal stability, among other properties. AkzoNobel has developed a new powder coating technology. This cutting-edge coating meets the increasing demand for safer battery systems by offering improved electrical protection in a single spray. The coating gives battery components additional protection by being resistant to chemicals, heat shock, and water immersion. PPG has launched a new anti-corrosive primer line called PPG PRIMERON™ Optimal, designed to protect steel. These new coatings can be used on both machinery and automobile parts and are lighter than traditional zinc-rich primers (with a specific gravity of 2.0 compared to 3.6), making the application easy.
Powder coatings are becoming increasingly favored over liquid alternatives because of their sustainability aspect. Since most applications can be completed in a single coat, powder coatings save money. Additionally, most coatings have low or almost no volatile organic compounds (VOCs) and are better at preventing scratches and corrosion than liquid coatings. The performance of the battery would be improved by future developments in EV battery coatings, which might include multipurpose solutions that combine improved mechanical strength, electrical insulation, and heat resistance.
