| 초록 |
Lithium ion batteries (LIBs) have been received much attention due to their wide applications in portable elecronic devices and electric vehicles. Many researchers have studied various nano-structured materials to maximize the performance of electrode materials. In this study, we synthesized the ordered mesoporous tungsten oxide-carbon composite (m-WOx-C). As an anode, the m-WOx-C electrode exhibited high initial lithiation capacity (1150 mA h/g) and delithiation capacity (720 mA h/g, coulombic efficiency: 63%). The electrode also showed a good cycle performance. The m-WOx-C electrode exhibited better electrochemical performance compared to mesoporous tungsten oxide (m-WO3) and bulk tungsten oxide-carbon composite (bulk-WOx-C). We conclude that the enhanced performance of m-WOx-C electrode was probably attiributed to the combination of ordered mesoporous structure effect and transition metal oxide-amorphous carbon composite effect. |
