SULFUR-CARBON COMPOSITE, NONAQUEOUS ELECTROLYTE BATTERY INCLUDING ELECTRODE CONTAINING SULFUR-CARBON COMPOSITE, AND METHOD FOR PRODUCING SULFUR-CARBON COMPOSITE

摘要

Provided are a sulfur-carbon composite having a high discharge capacity per mass and a high sulfur utilization rate, and a nonaqueous electrolyte battery including an electrode containing the sulfur-carbon composite. In the sulfur-carbon composite, a mass loss ratio X at 500° C. in thermal mass analysis and a mass ratio Y of sulfur/(sulfur+carbon) in an observation visual field at a magnification of 1000 in SEM-EDS quantitative analysis satisfy the relationship of |X/Y−1|≤0.12, and porous carbon has a mean pore diameter of 1 to 6 nm, and a specific surface area of 2000 m²g⁻¹ or more and 3000 m²⁻¹ or less.