| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a lithium secondary battery which is superior in productivity and space saving characteristics, and in which internal resistance is reduced and which is suitable for large current discharge. <P>SOLUTION: In this lithium secondary battery, the proportion of thickness B of a positive electrode metal foil body 6 to constitute a positive electrode plate 2 against a length A from the surface 2a of one side of the first positive electrode plate 2, to a separator 8 wound on the surface 2b side of the other side of the first positive electrode plate 2, to a negative electrode plate 3, and to one of the surface 2a of the other positive electrode plate 2 adjoining via a separator 8, in the cross-section including the winding center axis of a winding-type internal electrode body 1, is 0.01-0.2. <P>COPYRIGHT: (C)2004,JPO&NCIPI |
