| 학회 |
한국화학공학회 |
| 학술대회 |
2019년 가을 (10/23 ~ 10/25, 대전컨벤션센터) |
| 권호 |
25권 2호, p.1656 |
| 발표분야 |
에너지 환경 (Energy and Environment) |
| 제목 |
SnO2 nanowire grown carbon paper as a functional interlayer |
| 초록 |
Lithium-sulfur battery has been attracting attention as one of the most promising next-generation rechargeable energy storage devices due to its high energy density, low price and environmental friendliness of sulfur. However, in order to commercialize lithium-sulfur battery, there are still some challenges such as low sulfur utilization, insufficient battery cycle life, and poor rate capability. In this study, SnO2 nanowire grown carbon paper (SnO2@CP) was synthesized via a facile CVD technique and then used as a functional interlayer for lithium-sulfur battery. As an interlayer between the cathode and separator, SnO2@CP showed excellent polysulfide trap efficiency. The lithium-sulfur battery with a SnO2@CP interlayer retains 918mAh/g at the 50th discharge at 0.2C, while the battery with a CP interlayer or without functional layer retains only 778mAh/g and 596mAh/g respectively. The increased cycling performance could be ascribed to the fact that web-shaped SnO2 nanowires can efficiently trap the polysulfide dissolution, and the porous carbon paper can provide enhanced conductivity in the electrode. |
| 저자 |
안현우1, 김윤곤2, 배재진2, 김예규2, 장대희2, 최준일2, 김원배2
|
| 소속 |
1포항공대, 2포항공대 화학공학과 |
| 키워드 |
에너지 환경 |
| E-Mail |
|
| 원문파일 |
초록 보기 |
