In the rapidly growing electric vehicle (EV) market, safety standards for lithium-ion batteries are becoming increasingly stringent. To support safer vehicles, Evonik is expanding its TEGO Therm product range to provide heat protection and fire-resistant coatings for EV battery housings and covers.
The new coatings are based on Evonik’s TEGO Therm products, offering a reliable solution to the industry’s demand for effective thermal insulation barriers that help prevent thermal runaway in EV batteries.
The TEGO Therm toolbox includes various components, each meticulously engineered to enhance the performance of thermal insulation and fire-resistant coatings.
Products include:
- TEGO Therm HPG 4000 granules offer a microporous silica core, providing low thermal conductivity, high hydrophobicity, and reduced flammability.
- TEGO Therm HPG 6806, a finer silica-based granule, excels in insulation, strengthening mechanical performance and ensuring smooth, even surfaces of insulation coatings.
- TEGO Therm L 300 is a waterborne polysiloxane hybrid binder that enhances the thermal stability and fire resistance of protective coatings.
Coatings based on this range of products meet the UL 94 V-0 fire safety standards, providing a new level of protection for EV batteries. The versatility of TEGO Therm allows for spray application on complex three-dimensional substrates, ensuring complete and efficient fire resistance of the coverage of every contour of the battery housing.
Evonik’s commitment to safety and innovation is demonstrated by rigorous testing. When subjected to a propylene flame with more than 1000° C, TEGO Therm-based coatings protected the substrate effectively, with the temperature on the back of substrate remaining moderate, even with a thin dry film thickness.
These results underscore the effectiveness of TEGO Therm in insulating against intense heat and highlight its suitability for applications where space is at a premium.
Filed Under: Adhesives, Technology News