| 摘要 |
PURPOSE:To make it possible to obtain an electric double-layer capacitor which will be maintained stable for a long period even in a high temperature atmosphere by using a specific butyrolactone as the solvent of an electrolyte. CONSTITUTION:Conductivity electrodes 2, consisting of a metal layer of aluminum, is formed and constituted on one surface of an activated carbon fiber as a polarized electrode 1, an electronic short circuit is prevented by interposing a separator 3, consisting of polypropylene, between said polarized electrodes 1, and after an electrolyte has been injected, component materials are put in a stainless steel case 4, both poles are insulated with a gasket 5, and a hole- sealing work is conducted. The deliverive shown by the formula I is used as the solvent of the electrolyte. Said deliverive is made of alpha-methyl-gamma- butyrolactone, or beta-methyl-gamma-butyrolactone, or gamma-methyl-gamma-butyrolactone, or gamma- methyl-gamma-butyrolactone. As a result, the electric double-layer capacitor, which can be used for a long period in a high temperature atmosphere, can be obtained. |
