CHARGING DISCHARGING CHARACTERISTICS OF LITHIUM-CONTAINING ALUMINUM-ALLOYS IN NONAQUEOUS SOLUTIONS - THE EFFECT OF ALLOYING COMPONENTS ON LITHIUM CYCLING EFFICIENCY

We have studied the charging-discharging characteristics of the electr ochemically formed lithium-containing aluminum alloys under the lithiu m incorporation-dissolution in nonaqueous solutions. Based on the expe rimental data, empirical equations were derived, which allow us to est imate the effect of the alloying components of an alloy on the paramet ers of lithium cycling. It is shown that adding small quantities of ma gnesium and yttrium to the aluminum substrate can increase the lithium cycling efficiency, and adding silicon, zinc, and copper can decrease it. The causes of the positive and negative effects of the alloying c omponents of an alloy on the charging-discharging characteristics of t he electrode have been adequately analyzed.