Properties of fused polysulphides—VI. Preparation, density and electrical conductivity of molten lithium polysulphides

The preparation of lithium polysulphides is described. The density and electrical conductivity have been measured for a molten lithium polysulphide of composition Li2S3.9, and the results are presented. Comparison is made with corresponding quantities for sodium and potassium polysulphides, and the significance of the results is discussed in relation to the operation of a high temperature lithium/ sulphur cell.