| 摘要 |
PROBLEM TO BE SOLVED: To obtain a solid activated carbon suitable as an electrode of an electric double layer capacitor by impregnating activated carbon powder and/or activated carbon fiber with a liquid forming a pore-protection agent, mixing the powder or fiber with a thermosetting resin and/or coal tar and a thermoplastic resin and forming and heat-treating the obtained mixture. SOLUTION: Activated carbon powder and/or activated carbon fiber are impregnated with a liquid capable of forming a pore-protection agent, mixed with a thermosetting resin and/or coal tar and the obtained mixture is formed and heat-treated in a non-oxidizing atmosphere. The liquid forming a pore- protection agent is selected from pure water, a higher alcohol, a fatty acid, oil and fat and a plasticizer. An electric double layer capacitor having an electrode made of the solid activated carbon has increased electrostatic capacity and lowered internal resistance. |
