| 摘要 |
PROBLEM TO BE SOLVED: To simplify a connecting work of the lithium negative electrode sheet of a spiral electrode body and a negative electrode can while securing performance comparable to the conventional products. SOLUTION: A spiral electrode body 7 is stored in a cylindrical negative electrode can 2 having a bottom. The electrode body 7 is formed by spirally winding a laminated product of a negative electrode sheet 10 made of metallic lithium, separator 12 and a positive electrode sheet 8. The negative electrode sheet 10 exists on the outermost peripheral part of the complex 7 by being wound around it two or more times, and is directly brought into pressure contact with the inner peripheral surface of the negative electrode can 2. |
