| 학회 | 한국공업화학회 |
| 학술대회 | 2021년 가을 (11/03 ~ 11/05, 대구 엑스코(EXCO)) |
| 권호 | 25권 2호 |
| 발표분야 | 학생우수논문발표(석사과정) |
| 제목 | Unraveling the role of Hydrofluoroether dilution of High-concentration electrolyte for wide temperature cycling of Li-metal batteries |
| 초록 | In recent years, high concentration electrolytes (HCEs) and strategies to dilute them have drawn immense research attention in various battery systems, especially in Li-metal batteries (LMBs). The most intriguing feature of these electrolytes is to form stable solid-electrolyte interphases, which are instrumental for stabilizing the Li-metal anodes (LMAs). Nonetheless, the understanding on the determining factors for reversible cycling of LMA over a wide temperature range is still lacking. In this work, we further illuminate the efficacy of the HCE (4M LiFSI in DME) and diluted-HCE (dHCE, 1M LiFSI in DME/TTE*) and unveil the dominating factors for effective cycling of LMAs over the actual operating temperature range (5−60 °C) by comparatively studying the HCE and dHCE. *TTE: 1,1,2,2-tetrafluoroethyl 2,2,3,3-tetrafluoropropyl ether |
| 저자 | 조영성, 구본협, 이호춘, 이홍경 |
| 소속 | 대구경북과학기술원(DGIST) |
| 키워드 | Li-metal batteries; High-concentration electrolyte; Hydrofluoroether dilution; Wide temperature range |
