| 학회 |
한국공업화학회 |
| 학술대회 |
2018년 가을 (10/31 ~ 11/02, 제주국제컨벤션센터(ICC JEJU)) |
| 권호 |
22권 2호 |
| 발표분야 |
에너지저장.변환_포스터 |
| 제목 |
MOF based bifunctional separator for Li-S batteries |
| 초록 |
Shuttle effect of lithium polysulfide causes the loss of active sulfur and it results in the decrease of the electrochemical performances in lithium-sulfur(Li-S) batteries. Substantial amount of research effort has been devoted to prevent shuttle effect and enhance the performances. Here, we present a simple strategy of mitigating the movement of lithium polysulfide using metal-organic framework(MOF)-Nafion based hybrid battery separator. Negatively charged -SO3 group in MOF repulses the polysulfide and selectively allows the Li ion passage. This functionalized group also help to improve the ionic conductivity along with Nafion matrix. MOF-Nafion based hybrid separator half cell with sulfur containing carbon anode and Li metal cathode exhibit a low capacity decay (0.079% per cycle within 250 cycles) and almost no capacity fading after the initial 10 cycles. |
| 저자 |
김선화, 연정석, 박호석
|
| 소속 |
성균관대 |
| 키워드 |
electrochemistry; lithium sulfur; shuttle effect; separator
|
| E-Mail |
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