| 摘要 |
PROBLEM TO BE SOLVED: To discharge gas generated inside an electric double-layer capacitor outside of it to improve its performance. SOLUTION: An aluminum laminate capacitor 11 is equipped with an aluminum laminate film 15 as its cell sheath, and a capacitor cell and an electrolyte are contained inside the aluminum laminate film 15. The aluminum laminate film 15 is equipped with a vent hole 20. The vent hole 20 is opened, when the cell sheath is high in its internal pressure, and the vent hole 20 is closed, when the cell sheath drops its internal pressure. Therefore, even if gases are generated in the inside, the gas is discharged outside via the vent hole 20. Therefore, the capacitor is hardly raised of its internal pressure and is improved in performance. When the capacitor 11 is manufactured, it is left to stand in a reduced- pressure atmosphere, since an initial voltage is applied to it, so that the electric double layer capacitor, which is improved in performance by exhausting an initially generated gas, can be manufactured. COPYRIGHT: (C)2004,JPO
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