| 摘要 |
PURPOSE:To prevent voltage drop even in an initial stage of high rate discharge by adding a specified molar ratio of aluminium chloride and lithium carbonate to electrolyte also acting as positive active material mainly comprising oxyhalide of sulfur. CONSTITUTION:A negative electrode 2 comprising at least one of lithium, sodium, and aluminium and a positive electrode 3 mainly comprising porous carbon are accommodated in a can 1 with a separator 4 interposed, and electrolyte also acting as positive active material mainly comprising oxyhalide of sulfur is placed in the can 1. Electrolyte in which a molar ratio of lithium carbonate to aluminium chloride is 0.5 or more is used. Thereby, growth of a LiCl film generating on the lithium negative electrode is suppressed, and when the battery is discharged in a high rate, the LiCl film is easily broken and voltage drop is prevented. |
