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Rigid Graphite Felt Boards for Energy Storage Application: Thermal Management Solutions


1. Introduction: What Are Rigid Graphite Felt Boards for Energy Storage Applications?
Rigid graphite felt boards are high-performance insulation materials manufactured by compressing and graphitizing carbon fibers into semi-rigid panels. These boards exhibit exceptional thermal stability, low thermal conductivity, and high corrosion resistance, making them ideal for extreme-temperature environments. In energy storage applications, such as advanced battery systems, thermal energy storage (TES), and fuel cells, rigid graphite felts serve as critical components for heat insulation, electrodes, and structural supports. They enable efficient thermal management, reduce energy loss, and enhance the longevity of energy storage systems operating at temperatures up to 3000°C in inert atmospheres.

2. Product Classification: Tailored Solutions for Diverse Needs
CFCCARBON offers two primary types of rigid graphite felt boards, engineered to meet specific operational demands:

Long Fiber Rigid Graphite Felt Boards: Made from continuous rayon or PAN-based carbon fibers, these boards provide superior mechanical strength (flexural strength up to 0.9 MPa) and uniform thermal distribution. They are ideal for applications requiring repeated thermal cycling, such as solar thermal storage and aerospace power systems.

Short Fiber Molded Integral Rigid Graphite Felt Boards: Utilizing chopped carbon fibers bonded with resin, these boards feature enhanced dimensional stability and cost-effectiveness. They are commonly used in large-scale battery modules and industrial heat recuperators

3. Key Performance Metrics: Engineering Excellence
Rigid graphite felt boards from CFCCARBON adhere to stringent technical specifications, ensuring reliability in energy storage systems:

Types Laminated /Sandwich short fiber /integral
Grade name PRF-3 RRF-3 RRF-3W RRF-3WP
Material type PAN, long fiber, laminated. Rayon, long fiber, laminated. Rayon, short fiber, molded, integral purified RRF-3W
Standard size /mm 1800-1500-(20-200) 1600-1260-460
Carbon content ≥99.9% ≥99.9% ≥99.92% ≥99.99%
Ash content 500PPM 500PPM ≤800PPM ≤20PPM
Bulk density /g/cm3 0.20~0.30 0.18~0.22 0.17±0.01
Thermal conductivity (25°C) <0.20W/m.K <0.10W/m.K <0.10W/m.K
Thermal conductivity (1000°C) <0.70W/m.K <0.50W/m.K <0.30W/m.K
Compressive strength /Mpa 1.2 0.9 0.7
Bending strength /Mpa 1.5 1.1 0.9
Processing temperature 2000 ℃ 2000 ℃ 2100 ℃
Application temperature
(Vacuum/inert gases) 1200~2500 ℃ 1600~2500 ℃ 1600~3000 ℃
Application temperature
(Oxygen) ≤400 ℃ ≤450 ℃ ≤400 ℃
Density for w.t calculation 0.25g/cm3 0.20g/cm3 0.18g/cm3
Additional Process with foil and or CFC, or coating, purification (≤20PPM) with foil and or CFC, or coating, purification (≤20PPM) with coating
4. Applications in Energy Storage: Driving Innovation
Thermal Energy Storage (TES): Rigid graphite boards insulate molten salt containers in concentrated solar power (CSP) plants, reducing heat loss by 30% and improving overall efficiency.

Fuel Cells: As gas diffusion layers (GDLs), they facilitate uniform reactant distribution and enhance conductivity in hydrogen fuel cells.

Advanced Batteries: In sodium-sulfur (Na-S) and lithium-ion batteries, the boards act as thermal barriers, mitigating thermal runaway risks

5. CFCCARBON’s Competitive Edge: Quality, Affordability, and Service
Cost Efficiency: Direct manufacturing capabilities enable 15–50% lower pricing than competitors without compromising quality.

Rapid Delivery: Standard orders fulfilled within 10–15 days, supported by streamlined logistics.

Customization: Boards can be tailored to unique dimensions (e.g., thickness: 10–120 mm, width: up to 1600 mm) and laminated with CFC or graphite foil for specific needs.

Free Samples: Pre-production samples available for client testing and validation.


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Target State: All States
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Last Update : 14 October 2025 5:43 PM
Number of Views: 18
Item  Owner  : cfccarbon.com
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