| 학회 |
한국화학공학회 |
| 학술대회 |
2018년 가을 (10/24 ~ 10/26, 대구 EXCO) |
| 권호 |
24권 2호, p.1520 |
| 발표분야 |
에너지 환경(Energy and Environment) |
| 제목 |
The Effect of Lithium Salt in Highly Concentrated Electrolyte for Lithium Sulfur Batteries |
| 초록 |
Recently, the properties of electrolyte have been reported as powerful parameter affecting the behavior of Li ion battery. Among them, Li salt has been regarded as important parameter that can influence not only the battery performance but also Li metal stabilization. In the same line with this view, highly concentrated salt has been attracted because of its various unusual functionalities such as high electrochemical stability for advanced lithium ion battery. However, even though highly concentrated electrolyte has many advantages for advanced Li ion batteries, it cannot be applied in Li-S batteries due to the limited solubility of sulfur related species. In this work, we applied different two types of salt in highly concentrated electrolyte for Li-S batteries. The combination of salt with electro-donating property changed the Li2S deposition chemistry and increased equilibrium concentration of polysulfides in electrolyte as well as Li metal stabilization. This finding offers understanding about peculiar solvation structure under highly concentrated electrolyte and novel strategy for modulating electrochemical reduction mechanism in highly concentrated Li-S batteries. |
| 저자 |
노형준, 추현원, 김윤정, 이진홍, 곽호범, 백재원, 노영일, 김희탁
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| 소속 |
한국과학기술원 |
| 키워드 |
에너지 환경 |
| E-Mail |
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| VOD |
VOD 보기 |
| 원문파일 |
초록 보기 |
