| 초록 |
The battery performance, including capacity and energy density is directly related to the materials and structure of the electrodes. In order to achieve desired structure of anode, we adopted 2D “Janus” structure, consisting of wrinkled graphene oxide functionalized with Fe3O4 nanoparticles and biomimetic polydopamine as a binder. We formed a wrinkled structure of GO to increase specific surface area and to improve electrical capacitance. In addition, Dopamine was injected as a binder which prevents anode materials from the detachment during charge/discharge cycling. Thin films were obtained through the Langmuir-Schaefer technique and were characterized using transmission electron microscopy (TEM). Consequently, according to our modification, we expect that this Fe3O4/ GO/ PDA composite would be a promising anode material with sufficient capacitance and cycling stability for rechargeable lithium-ion batteries. |
