A dramatic increase in the cost of raw materials such as Ni, Co, and Li has caused the battery community to shift its attention to lithium-sulfur (Li-S) cells due to its low cost followed by abundance of S. Despite recent remarkable advances, a series of issues remain unanswered, including poor cycle stability and safety concerns. Above all, the practically attainable energy densities of present Li-S batteries are still much lower than the theoretically achievable limit. Diverse approaches have been explored to tackle these problems. In particular, significant efforts have been made to synthesize porous carbons with sophisticated architectures. It was recently revealed that (1) the enhanced performance of C-S composites are closely associated with the effective confinement of highly soluble polysulfides inside the porous carbon framework, and (2) the insulating nature of elemental sulfur does not affect the electrochemical behavior of sulfur. Indeed, electrically isolated sulfur particles are converted to polysulfides via the reduction of sulfur molecules dissolved in the electrolyte solution. Based on this finding, in this work, we present a new concept of Li-S cells that integrates a sulfur-layered separator along with a pure carbon cathode.