1. Fire-retardant properties: The fire-retardant properties of liquid silicone fireproof cloth directly block the risk chain:

High flame retardancy: It does not burn or support combustion when exposed to open flames, and immediately extinguishes after the open flame is evacuated, preventing the flame from spreading to other parts of the vehicle body;

Excellent high-temperature resistance: The liquid silicone matrix can withstand long-term high temperatures;

Suppression of smoke and toxic gases: Liquid silicone releases minimal smoke (in extreme cases) when burned, and does not produce toxic gases such as hydrogen chloride and cyanide (silicone is mainly composed of silicon dioxide and water). 2. Safety Protection: Comprehensively isolates battery thermal runaway products.

Sealing and Leakage Prevention: Liquid silicone rubber has excellent flexibility and sealing properties. When made into a fireproof bag, it can tightly wrap the battery pack, preventing liquid electrolyte from being ejected during thermal runaway.

Impact and Splash Resistance: Its composite fiber matrix (such as high-strength glass fiber) has sufficient tensile strength and tear resistance.

Electrical Insulation: Liquid silicone rubber itself is an excellent electrical insulator.

3. Adaptability: Adapts to the Complex Shape and Operating Conditions of Electric Vehicle Battery Packs

Electric vehicle battery packs typically feature custom-designed, irregular structures (e.g., square or cylindrical modules) and must withstand on-board conditions such as bumps, low temperatures, and humidity. Liquid silicone fireproofing fabric offers the following physical properties:

High Flexibility and Plasticity: Liquid silicone's soft texture allows for flexible folding and bending to conform to the battery pack's shape (e.g., corners and grooves). The resulting fireproofing fabric adheres tightly to the battery pack's surface, eliminating gaps and preventing fire-resistant blind spots.

Weather Resistance and Environmental Adaptability: Withstands a wide temperature range of -40°C to 200°C (covering both low winter temperatures in northern China and high summer temperatures in southern China), it is also resistant to water, moisture, and aging (silicone has an aging lifespan of 5-10 years). It resists moisture-induced mold and heat-induced embrittlement after long-term use, ensuring stable fireproofing performance.

Lightweight Design: Compared to traditional ceramic fireproof panels and metal fireproof shells, liquid silicone fireproofing fabric (typically 100mm thick) offers a wide temperature range of -40°C to 200°C. 0.5-2mm) is extremely light (approximately 1.2-1.5g/cm³), does not significantly increase the curb weight of electric vehicles, and has little impact on driving range.

4. Durability and Practicality: Considering Long-Term Use, Installation, and Maintenance

Electric vehicle battery fireproofing bags must accompany the battery for extended periods and may require repairs and replacements. The durability and ease of use of liquid silicone fireproofing cloth can reduce future costs:

Abrasion and Corrosion Resistance: The smooth silicone surface resists friction with surrounding battery pack components (such as metal brackets and wiring harnesses) and is resistant to electrolytes, common automotive lubricants, cleaning agents, and other chemicals, preventing damage to the fireproofing cloth caused by corrosion.

Easy to Clean and Maintain: The silicone surface is oil- and dust-resistant. Even small amounts of dust or electrolyte can be cleaned with a damp cloth, eliminating the need for frequent replacement.

Easy to Process and Install: Fireproofing bags can be quickly produced in various sizes through molding, cutting, and sewing. Their lightweight and flexible design allows for installation without extensive disassembly of vehicle body components, facilitating integration into automakers' production lines and subsequent repairs and replacements.