Bowl-like sulfur particles wrapped by graphene oxide as cathode material of lithium–sulfur batteries†
Abstract
We successfully synthesized sulfur particles with a bowl-like structure and wrapped them in graphene oxide (GO) via a simple method. The GO-wrapped bowl-like sulfur composite (GO-BS) with void space inside was used as cathode material of Li–S batteries, which realized the protection of active material and tolerance of volumetric expansion.