| 초록 |
Lithium (Li) metal has been considered as a promising anode material for next-generation Li secondary batteries for over five decades. Nevertheless, due to uncontrolled Li formation, so called Li dendrite, Li metal has been hindered for the successful implementation in a practical battery system. Recenltly, we demonstrated the effect of mechanical surface modification on the performance of Li metal foil electrodes in a systematic manner. Unfortunately, however, the surface-patterned Li metal still suffers from uncontrolled Li formation at high-current operating conditions. This consumes excess amounts of electrolytes during repeated cyclings, which severely degrade the cycle performance of surface-patterned Li metal. To improve this, we introduce surface treatment techniques such as protection layers and functional electrolyte additives for surface-patterned Li metal. Uncontrolled Li plating has been significantly inhibited, resulting in superior cycle performance improvement. |
