| 摘要 |
PROBLEM TO BE SOLVED: To provide an all-solid battery which enables the enhancement of cycle characteristics.SOLUTION: An all-solid battery comprises: a negative electrode having a negative electrode active material; a positive electrode having a positive electrode active material; and a solid electrolytic layer disposed between the positive and negative electrodes. The all-solid battery further comprises: a negative electrode current collector connected with the negative electrode; and a positive electrode collector connected with the positive electrode. In the all-solid battery, a metal layer is disposed between the negative electrode and the negative electrode current collector and/or between the positive electrode and the positive electrode collector. As to the metal layer disposed between the negative electrode and the negative electrode current collector and making a negative electrode-side metal layer, a metal which does not electrochemically react with metal ions in an environment of a potential such that the negative electrode active material occludes and releases the metal ions, and of which the elongation percentage is 22% or more is used for the negative electrode-side metal layer. As to the metal layer disposed between the positive electrode and the positive electrode collector and making a positive electrode-side metal layer, a metal which does not electrochemically react with metal ions in an environment of a potential such that the positive electrode active material occludes and releases the metal ions, and of which the elongation percentage is 22% or more is used for the positive electrode-side metal layer. |
