| 摘要 |
PURPOSE:To suppress self discharge and increase shelf life by adding furan resin to a nonaqueous system electrolyte. CONSTITUTION:A positive electrode 1 connected to a positive conductor 6 and a negative electrode 2 using lithium as an active material are spirally wound through a separator 3 impregnated with a nonaqueous system electrolyte comprising a salute selected from the group comprising LiPF6, LiClO4, LiCF3SO3 LiBF4 LiAsF6, and LiN(CF3SO2)2, a solvent selected from the group comprising ethylene carbonate, propylene carbonate, butylene carbonate, vinylene carbonate, 1,2- dimethoxyethane, dimethyl carbonate, diethyl carbonate, ethylmethyl carbonate, tetrahydrofuran, and 1,3-dioxolane, and 0.5-30.0wt.% furan resin to constitute a spiral electrode body. The electrode body is inserted into a battery can 4. |
