In some embodiments, lithium-sulfur electrochemical cells, fabrication methods thereof, and methods useful to enable improvement of one or more performance characteristics in lithium-sulfur electrochemical cells are provided herein. In some embodiments, a method to enable improvement of one or more performance characteristics in a lithium-sulfur electrochemical cell(s) is disclosed, wherein a conductive network is formed within the lithium-sulfur electrochemical cell(s) by applying a voltage thereto for a threshold time period. The one or more performance characteristics of the lithium-sulfur electrochemical cell increase as a result of the presence of the conductive network.