| 학회 |
한국화학공학회 |
| 학술대회 |
2019년 가을 (10/23 ~ 10/25, 대전컨벤션센터) |
| 권호 |
25권 2호, p.2224 |
| 발표분야 |
WISET 여대학(원)생 공학연구팀제 지원사업 심화과정 결과 발표대회 (여성위원회) |
| 제목 |
High-performance 2D Siloxene-based Cathode for Lithium-Sulfur Batteries |
| 초록 |
Lithium-Sulfur Batteries (LSBs) are considered one of the most promising battery technologies for electric vehicles and energy storage systems. Herein, we propose siloxene-based additive materials for LSBs. Reactive extraction technique using HCl was used in order to drive their two-dimensional (2D) layered structures (2D Siloxene) from CaSi2. Being utilized as cathode-additive materials, 2D Siloxene was able to physically absorb lithium-polysulfides using abundant hydroxyl surface functional groups and increase the tortuosity of the cathode, preventing lithium-polysulfides dissolution. These two effects were thoroughly unveiled by XRD, XPS, and EM. LSBs employing 2D Siloxene (4 mg/cm2) achieved a high areal capacity of ~7 mAh/cm2 with a 10 mg/cm2 sulfur loading corresponding to 53% sulfur-utilization efficiency after 120 cycle at 0.1 C. |
| 저자 |
강희주, 전영시, 김진영, 조은하, 김예은, 박혜진
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| 소속 |
전남대 |
| 키워드 |
Lithium-Sulfur Batteries; Siloxene; Chemisorption
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| E-Mail |
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| 원문파일 |
초록 보기 |
