Sulfur-carbon composite containing highly graphitic carbon material for lithium-sulfur battery and process for making the same

摘要

A sulfur-carbon composite comprising a highly graphitic carbon material for a lithium-sulfur battery and a process for making the same are provided. The present invention relates to a sulfur-carbon composite containing a highly graphitic carbon material and sulfur (however, the ratio of the intensity of the G band of the Raman spectrum to the intensity of the D band exceeds 1.0). Having a high degree of graphitization characterized by being a graphitic microporous carbon substrate or a core-shell material having a conductive core covered by a graphitic microporous carbon layer; And sulfur is encapsulated in a porous structure of a highly graphitic carbon material), an electrode including the sulfur-carbon composite, a lithium-sulfur battery, and the sulfur- And a process for producing a carbon composite.