| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a technology for suppressing wrinkles generated on a flatly wound electrode body included in a secondary battery.SOLUTION: A secondary battery 20 includes: an electrode body 4 around which a laminate formed by laminating a positive electrode sheet and a negative electrode sheet shifted to a width direction is flatly wound; and a pinching member 2 that is an end part in a wound axis direction of an overlapping part 15 where the positive electrode sheet and the negative electrode sheet overlap and sandwiches an end part in a longer direction viewed from the wound axis direction.</p> |
