| 摘要 |
PROBLEM TO BE SOLVED: To dope an additional loss capacity amount of lithium ion uniformly over the whole electrode whose initial lithium occlusion and discharge efficiency is not complete, by using a net type of current collector through which lithium ion passes as a current collector having a positive electrode and a negative electrode. SOLUTION: A net type current collector is used respectively in a positive 1 and a carbon negative electrode 3, and is wound with a separator 2 put between them. An additional loss capacity amount of metallic lithium 4 is disposed at the outmost periphery. The positive pole 1, the negative electrode 3, and the separator 2 are of net type through which lithium ion can pass easily, and the lithium ion can reach linearly the central part (d) at the longest distance as shown in an arrowhead C. As a result, the metallic lithium ion is doped roughly uniformly over the whole material whose initial lithium occlusion and discharge efficiency is not 100% in the negative electrode 3, therefore, it is possible to prevent battery performance from being degraded. |
