*4.1.4 Characterizations*

The SEM of anode and that of cathode were characterized by FE-SEM (JSM-6701F). The electrochemical characterization of the LICs was performed by a cell tester (CT-3008W-5V5mA-S4). The specific capacitance was calculated based on total mass of the MWCNTs, graphite, AC, and SP.
