| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a cylindrical electric double-layered capacitor with increased electrostatic capacity and superior durability. SOLUTION: A cylindrical electric double-layered capacitor 1 comprises an electrode wound body 3, wherein a laminated object A with a band-like positive pole 12 and a band-like negative pole 15 stacked together with a first separator 13 in between and one of the band-like positive and negative poles 12 and 15, is stacked to a second separator 16 is wound in spiral, such that the second separator 16 is positioned on the outermost side, and a vessel 2 for housing the electrode wound body 3. A cylindrical electrode 18 is provided at the inside surface of the vessel 2, which faces the outside surface of the electrode wound body 3. The polarity of the cylindrical electrode 18 is a part of one of the band-like positive and negative poles 12 and 15, while being disposed opposite to the polarity of one positioned on the outermost side of the electrode wound body 3.</p> |
