This product is developed for supercapacitor electrode performance evaluation, featuring a dry-processed, self-supporting electrode sheet with a high activated carbon content of 96% and a specific capacitance of 28 F/g. The electrode thickness ranges from 220 to 240 µm, with a tamped density of 0.5 g/cm³, and it is supplied without a current collector. Measuring 10×10 cm, this electrode is intended for use in specific electrolyte and test protocols recommended by the manufacturer to achieve optimal performance. It is commonly applied in single-sided coated copper foil lithium-ion battery testing scenarios, though it is primarily designed for supercapacitor research. Storage in sealed conditions is required to maintain integrity.