Battery flame-retardant material

Introduction to Core Products and Technologies

1. Lithium battery safety protection materials (core business)

Luoyang Xingyao’s flagship product is a flame-retardant thermal insulation material—a high-performance composite material created by combining nano-insulation powder with inorganic fiber materials through a specialized manufacturing process. This product boasts exceptional thermal insulation and heat preservation performance, with an insulation effect that is approximately 80°C higher than that of comparable-thickness aerogel materials under the same compression conditions. Its thickness tolerance is tightly controlled within ±0.15 mm. Additionally, it features low thermal conductivity at high temperatures, excellent resistance to thermal radiation, flame retardancy, and electrical insulation properties. It is specifically designed to enhance the safety of power batteries and energy storage batteries, preventing the spread of thermal runaway, and complies with the battery safety requirements specified in GB 38031-2020 (including the 2023 revised edition).

Main Technical Specifications of Nanoporous Battery Thermal Insulation Materials

Product Model	Nano-microporous thermal insulation material
Thickness	(2.5–4.5) ± 0.2 mm
Wide format	325×350 mm
Maximum operating temperature	800℃
Density	280–360 kg/m³
Compression ratio	1 MPa: 10%–30%
Thermal conductivity	Room temperature: 25℃, ≤0.030 W/(m·K)
Thermal conductivity	High temperature: 500℃, ≤0.040 W/(m·K)
Thermal insulation temperature	940℃, 0.9 MPa, 20 min; temperature difference between hot and cold surfaces ≥ 660℃ @ 3 mm
Thermal insulation temperature	675℃, 0.9 MPa, 20 min; temperature difference between hot and cold surfaces ≥ 530℃ @ 3 mm
Leakage current	<1mA @ 3500V DC, 60s
Insulation resistance	>500 MΩ at 1000 V DC, 60 s
Hydrophobicity rate	≥98%, GB/T10299-2011
RoHS	Complies with the restriction requirements of the EU RoHS Directive, Amendment (EU) 2015/863 to Annex II of Directive 2011/65/EU.
Application areas	Thermal insulation and flame retardancy for new-energy vehicles, thermal insulation and fire resistance for building exterior walls, and thermal insulation and heat preservation for high-temperature equipment in the thermoelectric field, etc.
Note	Water-repellent treatment is optional; hydrophilic products can also be manufactured. Thinner or thicker products can be custom-developed.

Thermal Insulation Comparison
Product	Number	Thickness (mm)	675℃ 0.9 MPa 20 min 675℃ 0.9 MPa 20 min			Average temperature difference
Product	Number	Average	Hot surface temperature	Cold noodle temperature	Temperature difference	Average temperature difference
Nano-microporous thermal insulation material	Nano-microporous thermal insulation material (2.8–3.2) mm⁻¹	2.97	678.7	120.5	558.2	551.47
	Nano-microporous thermal insulation material (2.8–3.2 mm²)	3.00	669.1	120.7	548.4
	Nano-microporous thermal insulation material (2.8–3.2 mm³)	3.04	670.2	122.4	547.8

Under the same test conditions, with the initial thickness of the samples being consistent, the product exhibits even better thermal insulation performance.

Experimental results

(1) At a pressure exceeding 0.5 MPa, the compression test data at 20% compression show a value of 1.2 MPa, which is sufficient to counteract expansion and compression forces. After being compressed by 20%, the product’s fire-retardant performance and thermal insulation effect remain unchanged. The sample dimensions are 200 × 250 × 2 mm.

(2) In the flame-retardant test, the aerogel flame-retardant material exhibited obvious flame combustion after being exposed to 600℃ for 15 minutes; in contrast, the nano-insulation material remained non-flammable even after being exposed to 980℃ for two hours. Its performance advantage over aerogel is clearly evident.

Product Advantages

The sandwich structure of the nanomicro-porous thermal insulation material product can effectively prevent thermal runaway between individual battery cells.

On the hot side of the product, at 940℃ and 0.9 MPa for 20 minutes, the temperature on the cold side is below 340℃.

It saves more space compared to traditional cells of the same capacity.

Application scenarios

Nano-microporous thermal insulation materials, with their advantages such as low thermal conductivity, excellent resistance to thermal radiation, fire retardancy and flame resistance, insulating properties with high dielectric strength, and environmental friendliness, are widely used for thermal insulation in fields including new-energy vehicles, energy storage power stations, aerospace, and industrial pipelines.

(1) Fire-resistant isolation for power battery packs (between cells and between modules); fire-resistant layer for energy storage battery cabinets (to prevent thermal runaway chain reactions); battery top covers and bottom protection (to prevent ignition by external heat sources).

(2) Fire protection applications for new-energy vehicles: Battery pack fire isolation (preventing thermal runaway from a single cell from spreading to the entire battery pack); fire-retardant coating for battery casings (enhancing overall fire resistance rating); fire protection for high-voltage wiring harnesses (preventing short-circuit-induced fires).

(3) Fire Protection Scheme for Energy Storage Systems: Fire-resistant and thermal-insulation layer for energy storage battery cabinets, along with thermal runaway early-warning and active fire-protection system (which, in conjunction with BMS monitoring, automatically activates fire-protection measures).

(4) In addition to the new energy sector, its products are also used in: fire-resistant and thermal-insulation applications for high-rise buildings (replacing traditional flammable materials); fire protection in the petrochemical industry (thermal insulation for pipelines and storage tanks); and military/aerospace applications (high-temperature-resistant protective coatings).

Luo Yang Xingyao’s Core Competitiveness

✅ High cost-effectiveness: Compared to imported aerogels, it has lower costs and is suitable for large-scale applications.

✅ Customized solutions: We can design exclusive fire protection solutions tailored to different battery pack structures.

✅ Lithium battery thermal runaway protection material (nano-microporous insulation board)

✅ New Energy Vehicle & Energy Storage System Safety Solutions

✅ Complies with the new national standard: Meets the stringent requirements for thermal runaway protection stipulated in GB 38031-2020 (and its 2023 revision).

Category:

Battery flame-retardant material

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