fig2

Figure 2. (A) Puncture resistance-strain curves of the electrolytes. (B) Measurements of the adhesive force between different electrolytes and sulfur cathodes. (C) DSC curves of the PEO-LiTFSI and PU-LiTFSI with different LiTFSI content. (D) Arrhenius plot of the PO-PU-LiTFSI electrolyte and PO-PEO-LiTFSI electrolyte at an increased temperature from 30 to 100 ^oC. (E) Chronoamperometry curve for a Li||Li symmetric cell using the PO-PU-LiTFSI electrolyte; the inset is impedance spectra before and after the polarization. (F) LSV (from the open circuit potential to 5.0 V) profile of the PO-PU-LiTFSI electrolyte at a scanning rate of 0.1 mV s^-1.