| 摘要 |
PROBLEM TO BE SOLVED: To provide an electrode sheet having a sufficient electrostatic capacity, excellent in producibility and free from deterioration even when it is repeatedly charged and discharged, and to provide an activated carbon electrode sheet which is obtained by composting the electrode sheet and by which the problems of handling property, resistance between the electrode sheet and the current collecting metal sheet or the like are solved. SOLUTION: This carbon sheet is produce by using 70-85 wt.% activated carbon powder having an average particle diameter of 1-30 μm, 7-20 wt.% phenol resin powder having a weight average molecular weight of <=100,000 and 70-20 wt.% cellulosic fiber and has electrostatic capacity of aqueous electric double layer capacitor of at least 25 F/cc or the electrostatic capacity of organic electric double layer capacitor of at least 20 F/cc. The laminated composite sheet is obtained by laminating the sheet obtained by a wet sheet forming method on a metal sheet or conductive formed sheet containing graphite and firing the layers at 220-400 deg.C under a pressure of >=5 kg/cm2 to unify. This electric double layer capacitor is obtained by using them. |
