POROUS GRAPHENE-SILICON AEROGEL COMPOSITE CONTAINING GRAPHENE-WRAPPED SILICON NANOPARTICLES, PREPARATION OF THE SAME AND LITHIUM SECONDARY BATTERY USING THE SAME

摘要

In the present specification, reduced graphene oxide which is sterically connected to each other to have a porous structure; And a spherical composite dispersed in the reduced graphene oxide, wherein the spherical composite is characterized in that the reduced graphene surrounds silicon nanoparticles, and a graphene-silicon airgel composite is disclosed.