Covestro introduces a new generation of battery flame-retardant potting foam to significantly enhance battery safety

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Covestro introduces a new generation of flame-retardant sealing foam for batteries July 21, 2025 Recently, Covestro launched a new generation of flame-retardant polyurethane foam technology, further strengthening its strategic role as a key material supplier in the electric vehicle industry chain. 　　According to the introduction, the Baysafe BEF encapsulation foam series launched by Cosinnoval features excellent thermal insulation and flame-retardant properties: its lightweight foam can effectively prevent heat spread between battery cells as well as stop the spread of fire, thereby significantly enhancing battery safety and alleviating consumers’ long-standing concerns regarding the safety of electric vehicles. In addition to electric vehicles, Baysafe BEF can also be applied in areas such as portable energy storage systems. 　　An Xinghai, Global Head of Special Products at Covestro’s Customized Polyurethanes Business Unit, said: “This innovative achievement marks a key step forward in enhancing battery safety and promoting sustainable transportation.” This not only demonstrates Covestro’s firm commitment to innovation, but also enriches our product portfolio, providing strong support for the ever-evolving demands of the electric vehicle industry. ” 　　It is understood that China has recently issued the mandatory standard GB 38031—2025 \"Safety Requirements for Power Batteries in Electric Vehicles\", which for the first time sets requirements that such batteries should not catch fire or explode in the event of thermal runaway caused by an internal short circuit. The new standard will come into effect on July 1, 2026. China is the largest electric vehicle market in the world, and the new national standards are likely to have a profound impact on the development of global safety standards in the coming years.