| 摘要 |
PURPOSE:To improve high rate discharging ability by providing negative pole plate whose potential is nobler than 0.2V vs. Li/Li<+>, and using an electrolyte containing an organic solvent prepared by mixing acetonitrile with either of propylene carbonate and ethylene carbonate or their mixture. CONSTITUTION:A negative pole plate 2 whose equilibrium potential and working potential are nobler than that of metal lithium by at least 0.2V is provided for a battery and an organic solvent prepared by mixing acetonitrile with either of propylene carbonate and ethylene carbonate or their mixture is used as an electrolyte. In a potential region at least 0.2V vs. Li/Li<+>, reduction decomposition of acetonitrile is hard to occur and conductivity is improved by addition of acetonitrile without deteriorating oxidizing property of the electrolyte. Consequently, high rate discharging ability is improved. |
