Activated Carbon Ink, 100 ml, Water-Based
Activated carbon is used for the preparation of electrostatic double-layer capacitors. Formulated as an ink, the activated carbon can be coated on a current collector such as aluminum, copper, or graphite, dried, and prepared as electrodes for capacitors. An electrochemical capacitor has two electrodes separated by a separator or a membrane soaked in an ionically conductive electrolyte. This activated carbon ink is suitable for particularly organic electrolytes, but good results can be obtained for other electrolytes, such as water-based salt solutions.
Prior to coating, the substrate surface should preferably be coated with a thin graphite coating for better adherence and reduced contact resistance between the electrode material and the current collector. Before use, the ink may be mixed using a homogenizer mixer, and the optimal coating thickness is 200 to 300 µm. After coating, the wet film should be dried at 60° - 90°C for 1h. Forced drying can reduce drying time significantly. It´s recommended to press electrodes after drying. Suitable application method: slot die coating, doctor blade coating, or similar.
Solid: activated carbon
Binder: thermoplastic resin
Viscosity: 150 - 400 mPas
Density: 1.08 - 1.12 kg/L
Solid content by weight: 21% ± 2%
Drying temperature: 60° - 90°C for 1h
Flash point: >100 °C
Stability: >6 months
Specific capacitance: 100-150 F/g
Safety Data Sheet
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