초록 |
Lithium (Li) metal has received much attention for a long time as a promising anode material on account of its low potential (-3.04 V vs. SHE) and specific capacity (~3800 mAh g-1). Despite these promising aspects, Li metal anodes have never been completely implemented in industrial applications for more than four decades because of the uncontrolled Li dendrite growth. The Li dendrite growth is very fatal for the cycle life and cell safety. Recently, with the emergence of post-Li-ion batteries, safe and efficient operation of Li metal anodes has again become an breakthrough technology for the next generation energy storage systems with high energy density including Li-sulfur and Li-air. In the presentation, extensive efforts devoted to control Li dendrite growth thus far including solid polymer electrolytes, separators, electrolyte functional additives, morphological changes of Li metal have been reviewed. |