| 초록 |
Current energy storage devices can be classified into two categories such as rechargeable batteries and supercapacitors. Rechargeable batteries have relatively low power and high energy characters, while supercapacitors can deliver relatively low energy and high power capabilities. In order to achieve high energy and high power performances, a hybrid type device composed of a faradic (battery-type) electrode and non-faradic (capacitor-like) electrode was designed. In this study, a new hybrid type energy storage device was developed by using an asymmetric electrode configuration of sodium metal anode and capacitive cathode. The new device showed significantly high energy and power performances as well as stable cycling behaviors over several hundreds of cycles. |
