Figure 3From: A novel lithium/sulfur battery based on sulfur/graphene nanosheet composite cathode and gel polymer electrolyteMorphology, ionic conduction, and electrochemical stability of the synthesized GPE. (a, b) SEM images of PVDF-HFP/PMMA/SiO2 polymer matrix at different magnifications. (c) Impedance spectra of as-prepared gel polymer electrolyte. (d) CV profile of Li/GPE/SS cell (scan rate 0.1 mV s−1).Back to article page