Carbon Felt for Vanadium Redox Flow Battery Electrodes
High-purity graphitised carbon felt for vanadium redox flow battery (VRFB) electrodes — the most common electrode material in grid-scale energy storage research. The carbon felt’s high electrical conductivity, chemical stability in vanadium/sulfuric acid electrolyte, and large accessible surface area make it the industry standard VRFB electrode material.
Technical Specifications
- Material: PAN-based graphitised carbon fibre
- Thickness: 3 mm, 5 mm, 6 mm (standard)
- Bulk density: 0.06 – 0.12 g/cm³
- Electrical resistivity: <1.5 Ω·cm (through-plane)
- BET surface area: 0.5 – 5 m²/g
- Chemical stability: Stable in H₂SO₄ (1–5 M), vanadium electrolyte
Typical Applications
- Vanadium redox flow battery (VRFB) positive and negative electrodes
- Zinc-bromine flow battery electrode
- Organic flow battery electrochemistry research
- High-temperature thermal insulation (up to 2800°C in inert gas)
Specify thickness, density, and sheet dimensions for a formal quotation. Heat-treated (graphitised) versions for improved electrochemical performance available.
