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High-Purity Carbon Felt Electrode for Vanadium Flow Battery Energy Storage. Electrode-grade carbon felt for vanadium flow battery stacks. Bulk density 0.08-0.12 g/cm3 with carbon content 99.90%. Ash <200 ppm for cleaner electrochemical performance. Specific surface area about 2.3-4 to support electrode reactions. Processed around 2200 celsius degree for stable carbon structure. Soft felt electrodes cut to cell and stack dimensions. Designed for energy-storage flow battery systems, not general insulation only. Responsive RFQ handling with clear specs, MOQ, and delivery windows.