Jun 16, 2025

Battery Insulation Fabric: A High-Performance Solution for Thermal and Electrical Protection

As electric vehicles, energy storage systems, and high-power battery applications continue to evolve, the demand for robust, efficient, and reliable thermal insulation materials grows rapidly. Battery Insulation Fabric—a specially formulated, silicone-coated high-temperature fabric—offers a cutting-edge solution for protecting battery separators and ensuring the safety of battery group packs.

What Is Battery Insulation Fabric?

Battery Insulation Fabric is engineered by coating a high-temperature-resistant textile (such as fiberglass or silica fabric) with a specially formulated silicone compound. This advanced coating enables the fabric to withstand extreme temperatures ranging from 700°C to 1100°C, making it ideal for high-heat environments commonly found in EV and industrial battery applications.

The fabric not only provides excellent thermal insulation but also offers superior dielectric strength and mechanical durability. These properties make it particularly suitable for use as a protective barrier between battery cells or as an external wrap for battery packs.





Key Benefits

Compared to traditional insulation materials such as mica tape and aerogel, Battery Insulation Fabric offers several advantages:

  • Much Cleaner: Unlike mica-based materials that shed dust and particles, silicone-coated fabrics remain clean during cutting, handling, and installation, improving both production efficiency and end-product cleanliness.

  • Higher Strength: The reinforced fabric base provides excellent tensile and tear resistance, ensuring long-term durability even under mechanical stress.

  • Easier Handling: The material is compatible with CNC machines, die cutting, and custom shaping processes, making it highly adaptable to automated manufacturing lines.

  • Higher Burn-Through Resistance: Its ability to withstand extreme temperatures allows better performance in preventing thermal runaway propagation.

  • More Durable: It resists cracking, flaking, and degradation over time, even in harsh operating environments.

  • Lower Cost: While providing superior performance, the material can reduce total system costs compared to high-end aerogels or layered mica structures.

Customization Options

To meet the varied demands of battery manufacturers, Battery Insulation Fabric can be tailored with different surface finishes, thicknesses, and reinforcement layers. Whether for pouch cells, prismatic modules, or cylindrical pack assemblies, the fabric can be optimized for specific thermal and electrical insulation needs.

 

Conclusion

Battery Insulation Fabric is rapidly becoming a preferred material in advanced battery designs. With its high heat resistance, electrical insulation, ease of processing, and cost-effectiveness, it outperforms many conventional materials, offering a smart and scalable solution for safer, more reliable energy systems.



EAS Fiberglass Co., Ltd is a professional fiberglass products supplier and provides comprehensive and effective material industrial solutions covering the market of high-performance FRP, highly effective temperature insulation, and highly convenient construction. Nowadays, EAS owns various product lines of fiberglass yarn forming, woven fabricsfabric coating/lamination, FRP, etc. The complete product lines enable EAS to master the quality control and market competitiveness. Taking this advantage involves us in many projects and enhances brand promotion. Certified ISO9001-2008 equips EAS staff and management with a more professional operation. Certification of test reports for products is made by third-party laboratories SGS, TUV, DNV, etc.