TECHNOLOGY FOCUS - ELECTRICAL POWER AND ENERGY - Preferred Properties: The electrode material has a BET specific surface area of 1800-2500 m2/g, a pore capacity of 0.8-1.2 ml/g, a mean pore diameter of 1.6-2 nm, an average particle diameter of 0.5-15 mu m, and a surface functional group content of 0.25-0.6 mmol/g.    TECHNOLOGY FOCUS - POLYMERS - Preferred Process: The electrode material is surface-modified by compressive force and shearing force. The electrode material is produced by alkali activation of a phenol resin using a carbide material as carbon raw material. Preferred Condition: Heat-processing of electrode material is carried out at 800 degrees C for 1 hour under nitrogen atmosphere. EXAMPLE - Phenol formaldehyde resin (500 g) and hexamine (50 g) were mixed, ground and melt-mixed in a vat having coating of PTFE, to obtain a semi-hardened phenol resin. The obtained semi-hardened phenol resin was cured and heated at 180 degrees C for 2 hours to obtain a resin cured material. The obtained resin cured material was ground to 100 mu m, heated to 750 degrees C in nitrogen stream, and allowed to stand for 2 hours to obtain a phenol-resin carbide material. The obtained carbide material was ground to average particle diameter of 4 mu m, mixed with 3.3 times of potassium hydroxide, heated to 800 degrees C in nitrogen stream, allowed to stand for 2 hours, alkali-activated, and cooled to room temperature. The metal impurities were removed, and the product was dried at 120 degrees C for 40 hours to obtain an activated carbon. The activated carbon was heated to 800 degrees C for 1 hour in nitrogen atmosphere to obtain an electrode material. The electrode material was surface-modified. The electrode material had BET specific surface area of 2280 m2/g, pore capacity of 1 ml/g, mean pore diameter of 1.75 nm, average particle diameter of 4.5 mu m, and surface functional group content of 0.43 mmol/g. The electrode material had half value width of 69.9 before heat-processing and 71.9 after heat-processing, electrical capacitance of 39 F/g at 25 degrees C, resistance of 1 Omega at 25 degrees C, electrical capacitance of 39 F/g at 30 degrees C, and resistance of 23 Omega at 30 degrees C.