- Self-assembled composite with Carbon Nitride and Graphene Oxide Manufacturing Method Thereof Cathode Applying the same And Lithium-Sulfur Battery Comprising The Same

摘要

The present invention relates to a self-assembled composite with carbon nitride and graphene oxide. More specifically, a self-assembled composite formed by thermally treating a mixture solution in which melamine, tri-thiocyanuric acid and graphene oxide (GO) are dissolved is included in a positive electrode of a lithium-sulfur battery to suppress elution of lithium polysulfide. According to the present invention, the self-assembled composite containing a large amount of pyridinic groups and having improved conductivity serves to adsorb and suppress dispersion of lithium sulfide eluted from the positive electrode during charging/discharging. Thus, by suppressing a shuttle reaction, the present invention can improve capacity and lifetime characteristics of the lithium-sulfur battery.