POSITIVE ELECTRODE MATERIAL FOR LITHIUM-SULFUR SECONDARY BATTERIES, LITHIUM-SULFUR SECONDARY BATTERIES USING SAME, AND METHOD FOR PRODUCING POSITIVE ELECTRODE MATERIAL FOR LITHIUM-SULFUR SECONDARY BATTERIES

摘要

The present invention addresses the problem of providing a positive electrode material for lithium-sulfur secondary batteries, that retains conductivity and can suppress the elution of polysulfide ions into the electrolyte solution. In order to solve this problem, a positive electrode material for lithium-sulfur secondary batteries according to an embodiment of the present invention contains a composite active carbon provided by mixing (a) sulfur-supporting active carbon with (b) active carbon that does not support sulfur.