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. 2015 Apr 23;6:1016–1055. doi: 10.3762/bjnano.6.105

Figure 26.

Figure 26

Literature overview on different studies of Na/S8 cells with liquid electrolyte operating at room temperature. The comparison shows the first cycle. The data was digitalized from the different publications. (a) Cells with ether-based electrolytes. (b) Cells with carbonate-based electrolytes. The dotted line indicates the lowest cell voltage possible assuming bulk thermodynamics for the solid state reaction from Na2S2 to Na2S. This reaction theoretically accounts for 836 mAh/g.