| 초록 |
Li-Sulfur batteries are drawing attention as the next generation of batteries. However, lithium polysulfide is decomposed into an electrolyte, resulting in decreased capacity and cycle stability, and structural damage and corrosion of the active material due to volume expansion of sulfur. Here, we studied the positive effects of using a conductive polymer (PDDA) coated on GO. In this study, we introduce the thermal exfoliation of graphene oxide electrode coated with a conductive polymer Poly(diallyldimethylammonium chloride, PDDA) for lithium-sulfur secondary batteries, and explained that nitrogen-doped thermal exfoliation graphene sheets (NTEGS) effectively induce chemical adsorption There is sulfur on the carbon surface and acts as a skeleton with good electron conductivity. It shows that the reversibility improvement identified through various analysis methods can be explained by the stabilization of sulfur to prevent dissolution. |
