| 摘要 |
An alkali metal, solid cathode, nonaqueous electrochemical cell capable of delivering high current pulses, rapidly recovering its open circuit voltage and having high current capacity, is described. The stated benefits are realized by the addition of at least one organic sulfate additive to an electrolyte comprising an alkali metal salt dissolved in a mixture of a low viscosity solvent and a high permittivity solvent. A preferred solvent mixture includes propylene carbonate, dimethoxyethane and a sulfate additive having at least one unsaturated hydrocarbon containing a C(sp2 or sp3 )-C(sp3) bond unit having the C(sp3) carbon directly connected to the -OSO3- functional group, or a silyl sulfate or a tin sulfate.
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