| 摘要 |
PURPOSE:To increase coulomb efficiency and to improve cycle performance to increase cycle file by using an Al-Bi alloy as a negative material. CONSTITUTION:An Al-Bi alloy or a ternary system alloy of Al-Bi alkali metal is used in a negative electrode. This negative electrode is combined with a positive electrode, which is rechargeable, and an electrolyte containing an alkali metal ion. Thereby, coulomb efficiency is increased and the cycle performance is improved to sufficiently display the capability of various types of positive electrodes, and a drop in performance caused by the negative electrode is eliminated to increase the cycle life even in the repeating of high capacity change- discharge. |
