| 摘要 |
PURPOSE:To achieve a high energy density, a long life and high reliability in a wide range of temperature for use by using mixed solvent of propylene carbonate(PC) and methyl ethyl carbonate(MEC) as nonaqueous electrolyte. CONSTITUTION:A nonaqueous secondary battery is formed with a negative plate 1 of carbon material, a positive plate 2 of lithium composite oxide. As nonaqueous solvent, PC/MEC mixed low-viscocity solvent is used so that the nonaqueous electrolyte secondary battery shows a high energy density, a long life and high reliability in a wide range of temperature for use without increasing its inner pressure under high temperature circumstances and solidifying its electrolyte under low temperature circumstances. |
