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Hebei Carbon Valley Carbon Fiber Co., Ltd

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Pre-oxidized Fiber Felt: The Core Material for Thermal Insulation and Fire Protection in New Energy Batteries

2026-03-14 08:58:04
27629

With the rapid development of global new energy vehicles, energy storage systems and power batteries, the safety and stability of battery systems have become core concerns of the industry. Pre-oxidized fiber felt, as a high-performance non-combustible thermal insulation material, is gradually becoming the key core material for new energy battery thermal insulation and fire protection, providing reliable safety protection for power batteries and energy storage batteries.

Pre-oxidized fiber felt is made from high-quality pre-oxidized fiber through processes such as carding, needling and high-temperature shaping. It has excellent flame retardancy, high temperature resistance, low thermal conductivity and non-melting and non-dripping characteristics. Even under extreme high temperature and open flame conditions, it will not burn or release toxic and harmful gases, effectively blocking heat conduction and delaying thermal runaway diffusion between battery cells.

In the new energy battery module and PACK structure, pre-oxidized fiber felt is mainly used for:

  • Thermal insulation and fire isolation between single battery cells

  • Thermal barrier and fire protection inside the battery pack

  • High temperature buffer and shock absorption protection of the battery system

  • Flame retardant reinforcement of key parts of energy storage cabinets

Compared with traditional insulation materials, pre-oxidized fiber felt has lighter weight, thinner thickness and better high temperature resistance, which can meet the lightweight and miniaturization design requirements of modern power batteries. At the same time, its stable chemical properties and long service life also help to improve the overall safety and durability of the battery system.

With the continuous upgrading of global new energy battery safety standards, pre-oxidized fiber felt, with its outstanding performance advantages, has been widely used in mainstream models and energy storage projects at home and abroad. As a professional manufacturer and supplier, we provide high-performance pre-oxidized fiber felt products that meet international certification standards, supporting global customers in the new energy industry to improve product safety and market competitiveness.

Carbon Fiber,Pre-oxidized Fiber,Carbon Fiber Prepreg

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