AG-ST-P1200 Nano Silica Thermal Insulation&Fireproof Board

Advanced Thermal Runaway Protection for Lithium Battery Systems

Industry Background

With the rapid expansion of electric vehicles and energy storage systems, lithium-ion batteries are operating at increasingly high energy densities.

Thermal runaway has become the most critical safety challenge, as extreme temperatures (450°C–1200°C) and flame jets can rapidly propagate from a single cell to the entire battery pack.

Conventional protection materials such as mica sheets or flame-retardant foams are unable to withstand such extreme thermal shock, making it difficult to effectively block thermal propagation.

Key Challenges in Lithium Battery Thermal Protection

1. Extreme Temperature Impact

Thermal runaway can exceed 1000°C with flame ejection.
Most traditional materials fail under such conditions.

2. Narrow Cell Spacing in High Energy Density Designs

Modern battery packs require ultra-thin insulation materials with tight dimensional tolerance.

3. Rapid Heat Transfer

Heat spreads through conduction, convection, and radiation.
Materials must maintain ultra-low thermal conductivity across a wide temperature range.

4. Multi-Functional Requirements

Battery protection materials must integrate:

• Thermal insulation

• Flame resistance

• Electrical insulation

• Compression resilience

• Environmental compliance

AG-ST-P1200 – Engineered to Stop Thermal Propagation at the Source

AG-ST-P1200 nano silica insulation board is specifically developed for cell-to-cell, module, and pack-level thermal runaway protection.

1. Ultra-High Temperature Resistance

• Maximum service temperature: 1200°C

• 2mm thickness withstands 1000–1200°C flame exposure for 20 minutes

• Backside temperature remains below 250°C

• UL94 V-0 flame rating

Designed to meet the core safety requirements of GB 38031 “No fire, no explosion”.

2. Ultra-Thin & High Precision

• Thickness range: 1.0–5.0 mm

• Thickness tolerance: ≤ 0.2 mm

• Suitable for ultra-narrow cell gaps

• Does not compromise energy density

3. Ultra-Low Thermal Conductivity

Nano-porous structure reduces gas conduction and convection, effectively blocking heat propagation paths.

4. Integrated Multi-Performance Design

Electrical Insulation

• DC 3500V leakage current < 1mA

Compression Resilience

• 1MPa: 15%–25%

• 2MPa: 25%–35%
  Accommodates cell expansion during cycling.

High Specific Heat Capacity

• ≥ 0.8 J/(g·°C) at 25°C
  Absorbs part of the thermal energy during runaway events.

Environmental Compliance

• Halogen-free

• RoHS compliant

• REACH compliant

5. Manufacturing Friendly

• Custom dimensions available

• Easy machining

• Compatible with automated battery production lines

Application Scenarios

• Cell-to-cell insulation

• Module-level thermal barriers

• Battery pack firewalls

• EV power batteries

• Energy storage systems (ESS)

Why AG-ST-P1200?

✔ 1200°C extreme resistance
✔ Ultra-thin structure for high-density packs
✔ Full-temperature ultra-low thermal conductivity
✔ Multi-functional integration
✔ Ready for large-scale manufacturing