Ceramic Fiber Board
- Extreme High-Temperature Resistance: Withstands instantaneous peak temperatures up to 1800°C, significantly outperforming traditional EV mica boards (1200°C limit).
- Significant Cost Reduction: Achieves a 40%-50% reduction in comprehensive procurement costs compared to conventional mica sheets through revolutionary material and process innovations.
- Superior Electrical Insulation: Fully complies with the rigorous GB/T 36276-2023 energy storage safety standards for AC/DC withstand voltage and insulation resistance.
- Aerospace-Grade Technology: Engineered from aerospace thermal protection coatings, backed by 8 core invention patents and 1 PCT international patent for high technical barriers.
I. Core Technology & Working Mechanism
Our Ceramic Fiber Board is a revolutionary, cost-effective material successfully adapted from aerospace medium-temperature, long-duration thermal protection technologies.
- Material Composition: Formulated with high-temperature-resistant ceramic precursor powder, ablative resin, and alkali-free fiberglass fabric.
- Thermal Runaway Blocking Mechanism: When exposed to extreme high temperatures such as battery thermal runaway, the organic components undergo an endothermic reaction to actively absorb heat and suppress the rapid temperature rise. Simultaneously, the inorganic components utilize advanced ceramifying technology, transforming into a dense ceramic structure that provides extreme high-temperature structural strength, ensuring the isolation layer is not penetrated by high-velocity hot gas flows.
II. Disruptive Cost-Efficiency Advantage
- Substantial Raw Material Cost Reduction: Traditional synthetic mica powder and silicone resin bring the raw material cost of mica boards to approximately 20 RMB/kg. In contrast, the precursor powder and ablative resin used in our ceramifiable composite halve the raw material cost to ~10 RMB/kg.
- Streamlined Manufacturing Process: Completely eliminates the time-consuming mica paper impregnation and drying steps of traditional mica board production. The raw materials are directly mixed, hot-pressed, formed at high temperatures, and laser-cut, resulting in a simplified process and highly stable quality.
- Ultimate Price Advantage: Compared to mica boards on the market, our ceramic fiber board directly reduces comprehensive procurement costs by 40% – 50% for end customers.
III. Performance Data & Professional Test Reports
1. Thermal Management Scenarios & Flame Penetration Resistance
| Core Application Scenarios & Design Requirements | Extreme Torch Test Conditions | Actual Test Performance |
|---|---|---|
|
Scenario: EV Battery Thermal Runaway Thermal Environment: 500°C ~ 1000°C (minutes to half an hour) Requirement: Extremely low thermal conductivity, maximizing thermal propagation delay to protect surrounding modules. |
Test Temperature: 1300°C direct oxyacetylene flame impact (simulating high-temperature venting gas from battery safety valves) Test Distance: 0.8-1.2 (Adjustable) Test Duration: 30 minutes continuous exposure Sample Thickness: 2.158mm and 2.708mm |
Temperature Limit: Instantaneous extreme use temperature up to 1800°C. Ablation Performance: After 30 minutes of severe burning, the sample’s structure remained intact without being burned through. Blocking Performance: Excellent flame penetration resistance; the back gradually turned white over time without failure, demonstrating outstanding thermal blocking capabilities. |
2. Electrical Insulation & Withstand Voltage Performance Tests
| Test Items (Standard: GB/T 36276-2023) | Test Methods & Acceptance Criteria | Actual Test Data | Conclusion |
|---|---|---|---|
| Insulation Resistance Test | Apply 2500VDC, ramp up 10s, hold 60s; Requirement: > 500MΩ |
High resistance data ranging from 3858MΩ to >50GΩ | Passed |
| DC Withstand Voltage Test | Apply 4380VDC, ramp up 10s, hold 60s; Requirement: Leakage current < 1mA |
No breakdown, actual leakage current is only 11.9μA | Passed |
| AC Withstand Voltage Test | Apply 3100VAC (Sine wave 45Hz~62Hz), hold 60s; Requirement: No breakdown, no flashover |
No breakdown, no flashover, actual leakage current is 0.192mA ~ 0.326mA | Passed |
| Rigorous Comparative Test | ① Insulation: 1000VDC/60s (> 500MΩ) ② Withstand Voltage: 2700VDC/60s (Leakage current < 1mA) |
① Insulation Resistance: >50GΩ ② Leakage Current: Only 1.4μA, no breakdown |
Passed |
IV. Core Application Fields
- EV Battery Packs: Widely used as thermal diffusion protection top plates, bottom trays, thermal insulation spacer pads between battery cells, and insulation between power battery modules. Potential usage per vehicle is approximately 50kg.
- Energy Storage Systems (ESS): Perfectly matches the high-voltage insulation and chain thermal runaway blocking requirements of high-energy-density energy storage power stations. It is a revolutionary alternative to 700°C-800°C phlogopite mica boards and ceramifiable mica boards.
V. Supplementary Information: The Industry Challenge & Our Solution
- The Industry Challenge: Driven by stringent new safety standards (e.g., GB 38031-2025 & GB/T 36276-2023), EV and ESS batteries now require zero fire or explosion for at least 2 hours during thermal runaway. Meanwhile, traditional synthetic mica boards are becoming too expensive to scale.
- Our Solution: We engineered a revolutionary Ceramic Fiber Board that drastically cuts comprehensive costs by 40%-50% while delivering superior 1800°C thermal protection, perfectly bridging the gap between high safety compliance and budget control.
If you want to customize tapes of other specifications, you can contact us to customize the specifications you want.
When can I get my quotation?
We will provide you with a detailed quotation as soon as we receive your inquiry. Typically, we will send you a quote within 24 hours. If your requirements are complex or need custom services, it might take a bit longer, but we will keep you informed of the progress promptly.
What is your order schedule?
After confirming your order, we will schedule production based on your requirements and our production plan. Generally, the production cycle for standard orders is 2-3 weeks. If you have an urgent order, please contact us as soon as possible. We will do our best to accommodate your request and arrange expedited production.
Can I get samples?
Yes, we are happy to provide samples for you. Please contact our sales team with your specific needs and sample type, and we will arrange for the samples to be sent to you as soon as possible. Some samples may require a small fee, but in most cases, we offer free samples for testing and evaluation.
Can I print my logo on the tape?
Absolutely. We offer customization services and can print your logo on the tape according to your requirements. Please provide a high-quality logo file and specific printing requirements. Our design team will create a draft design for your approval. We will also provide samples for you to confirm before production.
What if I don't have detailed requirements?
If you are unsure about the specific requirements, our technical team is more than happy to offer professional advice. Just tell us your application scenario and basic needs, and we will recommend the most suitable tape solution based on our extensive experience and wide range of products. We can also provide sample testing to ensure our products meet your needs.
