GRAPHENE COMPOSITE WITH DISPERSED NANOPARTICLE, METHOD FOR PREPARING THE SAME AND SECONDARY BETTERY COMPRISING THE SAME

摘要

The present invention relates to a graphene composite with dispersed nanoparticles, a method for manufacturing the same, and a secondary battery comprising the same. The graphene composite according to the present invention can disperse nanoscale chalcogen particles into the graphene by a simple process using no extra dissolvent, thereby preventing the exudation of sulfur into an electrolyte when the conventional lithium-sulfur battery is recharged or discharged and extending battery life.