METHOD OF PRODUCING THIN FILM SULFUR-COATED CONDUCTIVE CARBON, THIN FILM SULFUR-COATED CONDUCTIVE CARBON, POSITIVE ELECTRODE MIXTURE AND ALL-SOLID-STATE LITHIUM SULFUR BATTERY

摘要

PROBLEM TO BE SOLVED: To provide a method of producing thin film sulfur-coated conductive carbon which can be used suitably in the positive electrode mixture of an all-solid-state lithium sulfur battery having excellent discharge capacity and rate characteristics, by making the most of the excellent physical properties of sulfur.SOLUTION: The method of producing thin film sulfur-coated conductive carbon is a method of producing conductive carbon having a surface coated with a sulfur thin film, and being used in the positive electrode mixture of an all-solid-state lithium sulfur battery. The production method includes a step (a) for immersing conductive carbon having BET specific surface area of 500 m/g or more into a sulfur solution, and coating the surface of the conductive carbon with sulfur, and a step (b) for separating the conductive carbon having a surface coated with sulfur in the step (a) from the sulfur solution.