| 초록 |
In recent years, there has been a strong demand for advanced rechargeable battery systems with high energy storage capability. Among the various energy storage technologies under development, a metal-air battery, in which a metal anode (Li, Zn, etc.) is coupled with an air-breathing porous cathode, delivers much higher specific energy compared to conventional battery chemistries such as lithium-ion batteries. During discharge, the metal–air battery generates electricity through an oxidation reaction of a metal anode and a reduction reaction of oxygen (O2) on a porous cathode. The reverse reactions occur upon charge. This talk introduces the technical challenges facing development of metal−air batteries with specific attention to electrochemistry and materials, and then presents promising strategies to designing electrodes and electrolytes that could improve a battery's capacity, energy efficiency, rate-capability, and cyclability. |
