| 초록 |
In our study, we applied graphene nanosheets/WS2 to electrochemical enhancement of the lithium sulfur battey cathodes. Transition metal dichalcogenide nanosheets attracted much attention owing to the reversible structure and intrinsic network polarity. When applied as the cathode in lithium sulfur batteries, graphene nanosheet/WS2(1:0.5) composites exhibited high reversible capacity at the first cycle and maintain a satisfactory cyclability. In this study, a facile process was used to synthesis graphene nanosheet/WS2 composites by one-step in situ solution-phase method. For comparison, we used same cell except cathode material which is only GNS. Electrochmical properties were conducted by making coin cell and characterized by cyclic voltammetry in 1M LiTFSI electrolyte. |
