Elemental sulfur was successfully impregnated in an activated carbon (AC) matrix obtained from sisal fibers. The impregnation of sulfur in the activated carbon (S-AC) matrix was confirmed by XRD, SEM and Raman analyses. The sulfurized activated carbon (S-AC) composite electrode was employed as a cathode material for lithium-sulfur (Li-S) cell. The Li-S cell delivered a discharge capacity of 950 mA h g(-1) at 0.1C-rate. The electrochemical impedance spectroscopy measurements were carried out for the Li-S cell before and after cycling and also at different depth of discharge and depth of charge. A stable cycling was achieved at 1C-rate.
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