| 摘要 |
PURPOSE:To eliminate the problem of dendrite of the negative electrode and to lower the melting point and the viscosity of the electrolyte of a secondary cell by using a mixed fused salt, made by mixing an imidazole halogenide of specified composition with several metal halogenides, as the electrolyte. CONSTITUTION:A mixed fused salt made by mixing 20-80mol% of imidazole halogenide shown in the formula with several metal halogenides MXn is used for the electrolyte of a secondary cell. In the formula, R1-R5 indicate hydrogen atoms or substitutive alkyl, alkenyl, alkynyl, cycloalkyl or aryl radicals in the range of C1-C6 in carbon number respectively; and X denotes Cl, Br or I. M denotes K, Ca, Li, Al, Mg, Zn or Fe, and n=1, 2, 3. Thereby the dendrite problem of the negative electrode can be eliminated, and the melting point and the viscosity of the electrolyte can be decreased to improve the electric conductivity, and adequate electrolytic deposit can be obtained in the cell reaction to enlarge the current density. |
