To provide an electric double-layer capacitor, wherein the looseness of a sealing part accompanied by use is prevented, the leakage of electrolyte solution accompanied by use is prevented, liquid-leakage resistance is superior, the capacitance is high and the inner resistance is small.
This capacitor has a positive-electrode polarizing electrode 1 containing electrolyte solution, a negative-electrode polarizing electrode 2 containing an electrolyte solution and a separator 3, which is arranged between the positive-electrode polarizing electrode 1 and the negative-electrode polarizing electrode 2. These parts are contained in the space formed of an outer case 4, a cap 5 and a ring-shaped gasket 6. The space is tightly closed by the tightening of the opening end part of the outer case 4 to the inner side. In this case, active carbon cloth or active carbon felt comprising active carbon fiber is used for any one electrode of the positive-electrode polarizing electrode 1 and the negative-electrode polarizing electrode 2. This electrode is expanded into the diameter direction until the outer surface substantially reached the inner surface of the outer case 4. Furthermore, the thickness of a surrounding part 1b of the electrode is set to 70% or less of the thickness of the central part.
| JP5885940 | How to make a power storage device |
| JPH04206918 | ELECTRIC DOUBLE LAYER CAPACITOR |
| JP2007180437 | LITHIUM ION CAPACITOR |
SANO KENICHI
SEKIDO SHINTAROU
| JPS603502A | 1985-01-09 | |||
| JPS62105002A | 1987-05-15 | |||
| JPS6262208A | 1987-03-18 | |||
| JPS59162409A | 1984-09-13 |
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