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In the rapidly growing EV market, safety standards for lithium-ion batteries are becoming increasingly stringent. Coatings based on Evonik's TEGO Therm products are a robust solution to the industry's demand for effective thermal insulation barriers, which are essential for preventing thermal runaway in EV batteries.
“With the electric mobility sector accelerating, the safety of lithium-ion batteries in EVs has never been more crucial,” said Dr. Benjamin Schaeffner, global head of market segment Industrial and Transportation Coatings at Evonik Coating Additives. “TEGO Therm is our response to the industry's call for reliable thermal barriers that not only meet but surpass the stringent safety standards of today."
TEGO Therm HPG 4000 granules boast a microporous silica core, which provides superior low thermal conductivity, high hydrophobicity, and reduced flammability. TEGO Therm HPG 6806, a finer silica-based granule, not only excels in insulation but also strengthens mechanical performance and ensures smooth, even surfaces of insulation coatings. The waterborne polysiloxane hybrid binder, TEGO Therm L 300, further 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 synergy between TEGO Therm binder and granules is at the core of our solution. It minimizes heat transfer and effectively inhibits the spread of fires, offering crucial additional time for emergency response”, said Dr. Niko Haberkorn, global head of business development for the market segment Industrial & Transportation Coatings at Evonik Coating Additives. “Moreover, our products ensure high mechanical resistance, maintaining structural integrity in high-temperature scenarios.”