| 摘要 |
PURPOSE:To improve controllability and safety of a captioned cell by jointly using LiPF6 and LiClO4 for solute to be used as an electrolyte. CONSTITUTION:In a nonaqueous electrolyte cell composed by combining a positive electrode 4 with a negative electrode 5 having a light metal such as lithium and sodium as an active material through a separator 4, a nonaqueous electrolyte, wherein LiPF6 and LiClO4 are dissolved as solute in an electrolyte solvent in which propylene carbonate is mixed with an organic solvent made of at least one kind selected from among dimethyltetrahydrofuran, dimethyldioxolane, tetramethyldioxolane and dioxane, is used. LiPF6 is far stable than LiClO4 in the organic solvent. Thereby, safety of the nonaqueous electrolyte is raised so as to improve controllability and safety of the captioned cell. |
