Using the expanded graphite in lithium-sulfur batteries

A solid composite material used for the positive electrode of lithium-sulfur current generation cell, Solid composite material, based on the total weight of the solid composite material, 1 to 75 wt% of expanded graphite, 25 to 99% by weight of sulfur, 0 to 50 wt%, one or more other conductive material except for expanded graphite, and 0 to 50% by weight of one or more binders, Solid composite material comprising a. Further, (i) the solid negative electrode containing a composite material, (ii) a positive electrode, and (iii) the negative electrode and a lithium sulfur current generator cell including an electrolyte interposed between the positive electrode. In addition, (I) sulfur, preparing expanded graphite or graphene, and optionally by dispersing the other components in a liquid medium, sulfur, expanded graphite or graphene, and optionally a slurry containing other components in a liquid medium , (II) casting process a slurry obtained by (I) to the substrate, or steps to introduce slurry obtained into the mold according to step (I), and (III) a portion from the slurry cast in step (II) or to remove all of the liquid medium to obtain a solid composite material, Method for producing a solid composite material comprising a. .FIELD 1