Vinyl fluorosilicone oil has recently made significant progress in the field of high-safety new energy vehicle battery materials. With its unique reactive vinyl functional groups and fluorosilicon structure, this material has become a key foundational component for developing a new generation of battery thermal runaway barrier and fireproof sealing systems, providing an innovative solution to enhance the intrinsic safety of electric vehicles.

Research shows that by regulating the vinyl content (0.2%-0.8%), vinyl fluorosilicone oil can be used to prepare specialty elastomers that combine excellent elasticity with resistance to high-temperature flame impact. When directly exposed to a 1000°C open flame, related materials can form a stable, dense carbon-silicon-oxygen ceramic barrier layer, effectively delaying heat propagation for over 30 minutes, far exceeding current national standards. Simultaneously, after long-term contact with high-voltage electrolytes, its volume expansion rate remains below 5%, and its dielectric strength exceeds 30 kV/mm, ensuring long-lasting reliability of electrical insulation.

In terms of application, battery pack fireproof isolation blankets and inter-module fireproof coatings based on this material have completed validation in high-energy-density battery systems of several mainstream automakers. Real vehicle test data shows that under extreme thermal runaway trigger conditions, battery packs employing this protection system successfully reduced the temperature rise rate of adjacent cells by 80%, providing a critical time window for occupant evacuation. Furthermore, its derived thermal conductive potting compounds achieve efficient thermal management while also exhibiting excellent flame retardancy.

As global electric vehicle safety regulations become increasingly stringent, the industry chain is accelerating its shift toward active safety strategies. Industry experts believe this technological breakthrough in vinyl fluorosilicone oil signifies the transition of battery safety materials from "passive protection" to "active defense," and is expected to be rapidly adopted in the design standards for next-generation high-safety batteries.