Аннотация:The mechanism of the cathodic reduction of sulfur is studied via cyclic voltammetry. An analysisof cyclic voltammograms using normalized coordinates shows that insoluble products (particularly Li2S2)form not as a result of an electrochemical process, but due to the disproportionation of Li2S4. The degradation of sulfur electrodes during cycling is associated with incomplete oxidation of the products of the cathodic reaction to elemental sulfur.