| 摘要 |
<P>PROBLEM TO BE SOLVED: To solve such a problem that the maximum available current is reduced since a current path is long, and a contact area between a positive electrode element and/or a negative electrode element and an electrode material element is small in a conventional cylindrical type power storage device in which the positive electrode element not having an uneven structure, the electrode material element, the negative electrode element not having the uneven structure and an insulation material element are stuck to each other, a plurality of stuck elements are serially connected and spirally rolled up, and then housed in a cylindrical housing. <P>SOLUTION: A positive electrode 10 having the surface of an uneven structure ranging from nanometer order size to sub-nanometer order size, an electrode material 20 and a negative electrode 30 having the surface of the uneven structure ranging from the nanometer order size to the sub-nanometer order size are prepared and stuck to each other. Respective positive electrode elements 1 of the positive electrode 10 are joined in parallel and the respective negative electrode elements 3 of the negative electrode 30 are joined in parallel. The stuck elements are rolled up just like a folding umbrella and housed in a cylindrical housing 4. An electrolytic solution is injected thereto and a cylindrical type power storage device is completed by sealing the electrolytic solution. <P>COPYRIGHT: (C)2013,JPO&INPIT |
