| 학회 | 한국공업화학회 |
| 학술대회 | 2016년 가을 (10/26 ~ 10/28, 제주국제컨벤션센터(ICCJEJU)) |
| 권호 | 20권 2호 |
| 발표분야 | 에너지저장변환_포스터 |
| 제목 | Silver nanowire (AgNW) cathode for Lithium-Oxygen Batteries |
| 초록 | Efforts have been made to decrease the overpotential at the formation and decomposition of Li2O2 in Li-O2 baatteries, by identifying catalysts that can control the morphology of Li2O2. Morphological control makes Li2O2 easier to decompose on oxygen evolution reaction. Herein, we show that silver nanowires as cathode materials for Li–oxygen batteries. Silver nanowire greatly reduces the charging over-potential needed for OER at the solution/electrode interface and are more effective than silver nanoparticles. AgNW deliver reversible Li2O2 formation/decomposition on discharge/charge with an average charging potential of ∼3.4 V without electrolyte solution decomposition after 50 cycles. We confirmed that unique Li2O2 structure can promote the decomposition at low charge potential upon oxygen evolution reaction leading to high electrical efficiently of Li-air batteries up to 83.4%. |
| 저자 | 강진혁 |
| 소속 | 한양대 |
| 키워드 | Li-O2 battery; lithium air battery; lithium oxygen battery; Silver nanowire; AgNW |
