Synthesis of novel sulfur-carbon nano-network composite as cathode for rechargeable Li—S batteries

摘要

A synthesis technology for sulfur-carbon Nanocomposite is provided, which was achieved by ultrasonification to allow formation of homogeneously distributed Sulfur nanoparticles on Carbon. Sulfur is uniformly distributed with mesoporous “functionalized carbon” to produce Sulfur-Carbon (S—C) nano-link. The performance of an EC cell assembled using the (S—C) nanocomposite cathode in Li-S battery has a capacity 910 mAh/g at low current density without fading up to 80 cycles with different C-rate. The synthesis process is cost effective and scalable for large quantity of (C—S) nanocomposites.