| 초록 |
Graphene has been considered as a promising electrode material for rechargeable batteries due to its high surface area and superior electronic conductivity. In this study, we introduce various design approaches to assemble 3D graphene electrodes through the surface functionalization and stacking engineering process for rechargeable batteries. We reveal the roles of surface functional groups and defects in improving the alkali ion storage performance through the surface-controlled charge storage mechanism. The 3D structured graphene electrodes deliver high capacity for Li-, Na-, K-ion storage with excellent rate-performance and cycling stability due to the effective utilization of the surface-controlled charge storage mechanism. Moreover, we assess the temperature-dependent performance of 3D graphene electrodes, demonstrating their enhanced performance under extreme cold environments. |
