| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a wound-around electrochemical with a capacity improved. <P>SOLUTION: The wound-around electrochemical device 2 includes a wound-around body 10 having a strip-shaped positive electrode 4 and negative electrode 6 each with an active material layer formed on either face of its collector wound around so as to sandwich a strip-shaped separator 8. Both sides of the positive electrode 4 at an end 4d toward a center side of the wound-around body are adjacent to the negative electrode 6 through the separator 8, and both sides of the negative electrode 6 at an end 6d toward a center side of the wound-around body are adjacent to the positive electrode 4, respectively, through the separator 8. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
