| 摘要 |
PROBLEM TO BE SOLVED: To reduce the amount of use of an electrode while suppressing looseness of an electrode body in a battery case.SOLUTION: An electrode plate 23 is wound by making a region TS in which a positive electrode active material 24B is coated in a positive electrode metal plate 24A and a region TF in which a negative electrode active material 26B is coated in a negative electrode metal plate 26A opposite to each other. As a result, the positive electrode active material 24B is coated on the entire positive electrode metal plate 24A, and the amount of use of the electrode can be suppressed in comparison with a configuration in which the negative electrode active material 26B is coated on the entire negative electrode metal plate 26A. |
