SGL – Carbon Felt Electrodes

SGL's SIGRACELL carbon felt electrodes are a mainstay for redox flow battery research, offered here in both ready-to-use thermally treated grades and an untreated virgin felt for labs running their own surface-activation studies. The GFD series felts (2.5 mm and 4.6 mm) come pre-treated for immediate use, while the KFD2,5 virgin felt gives researchers a clean starting material for testing thermal, chemical, or plasma activation protocols. All grades are cut to the same 2.5 × 2.5 cm and 5 × 5 cm active areas used across the cell platform, or supplied as full sheets.

• Ready-to-Use Grades: SIGRACELL GFD2,5 EA (2.5 mm) and GFD4,65 EA (4.6 mm) are thermally treated for immediate catalytic activity.
• Virgin Felt Option: KFD2,5 (2.5 mm) ships untreated for researchers benchmarking their own activation methods.
• Cell-Matched Cutting: Precision cut to 2.5 × 2.5 cm or 5 × 5 cm active areas.
• Full-Sheet Stock: 19.5 × 29.5 cm sheets available for custom cutting and geometry testing.
• Scalable Ordering: Available as single pieces, pairs, or 8-packs.

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