| 摘要 |
PURPOSE:To increase cycle life of a secondary battery by using a specified nonaqueous electrolyte, a positive electrode, and a negative electrode having a specified composition. CONSTITUTION:A nonaqueous electrolyte secondary battery is formed with a nonaqueous electrolyte containing lithium ion, a positive electrode of manganese dioxide, and a negative electrode of an alloy comprising 5-60% lithium and 95-40% aluminum. Dendrite formation in the negative electrode in charge is prevented, and reaction between the electrolyte and the negative electrode in repeated charge-discharge is retarded, and deterioration of the positive electrode caused by carbon dioxide generated is prevented. Therefore, cycle life of the nonaqueous electrolyte secondary battery is increased. |
