| 초록 |
Polyaniline as a conducting polymer have received great deal of attention because it can have different roles in improving the performance of the sulfur cathode, due to their morphology and good electrochemical stability. In this study, polyaniline (PANI)/graphene nanosheet (GNS) composites were synthesized by in situ polymerization of aniline in the presence of graphene. The prepared polyaniline/graphene was then added into sulfur suspension. The structure, morphology and crystallinity of the composites were examined by scanning electron microscopy (SEM), transition electron microscopy (TEM) and X-ray diffraction (XRD). Electrochemical properties were also characterized by cyclic voltammetry (CV). The PANI/GNS/sulfur composites exhibited on improved cycle performance for rechargeable lithium-sulfur batteries. These polyaniline/GNS/sulfur composites with improved cycling performance are promising electrode materials for lithium-sulfur batteries. |
