| 학회 | 한국공업화학회 |
| 학술대회 | 2020년 가을 (10/28 ~ 10/30, 광주 김대중컨벤션센터(Kimdaejung Convention Center)) |
| 권호 | 24권 1호 |
| 발표분야 | [에너지저장·변환2] 차세대 이차전지 기술개발 동향 |
| 제목 | 리튬공기전지용 촉매소재 및 시스템 개발동향 |
| 초록 | In recent years lithium-oxygen (Li-O2) batteries have drawn much attention due to their exceptionally high energy density, which could exceed the capable value of conventional Li-ion batteries. However, the insufficient round trip efficiency and poor cyclability of current lithium-oxygen batteries must be solved. A common route to overcome the large overpotentials in Li-O2 batteries has been to develop various solid-state catalysts on the oxygen electrodes. Although these approaches have yielded incremental improvements, electron transfer at the electrochemical interface is slow and catalytic sites are easily deactivated by the precipitation of insulating products. In this presentation, recent strategies to effectively preserve catalytic properties against deactivation issue will be introduced: (i) electrochemical control of discharge depth, (ii) geometric catalyst decoration, and (iii) incorporation of soluble catalyst in electrolyte. |
| 저자 | 류원희 |
| 소속 | 숙명여자대 |
| 키워드 | 리튬공기전지; 촉매; 공기극 |
