콘텐츠 본문
논문 해외 국제전문학술지(SCI급) Composite protective layer for Li metal anode in high-performance lithium–oxygen batteries
- 학술지 구분 국제전문학술지(SCI급)
- 게재년월 2014-03
- 저자명 Dong Jin Lee, Hongkyung Lee, Jongchan Song, Myung-Hyun Ryou, Yong Min Lee, Hee-Tak Kim, Jung-Ki Park
- 학술지명 Electrochemistry communications
- 발행처명 Elsevier
- 발행국가 해외
- 논문언어 외국어
- 전체저자수 7
- 논문 다운로드 링크(외부) https://doi.org/10.1016/j.elecom.2013.12.022
- 연구분야 공학 > 화학공학
논문 초록 (Abstract)
Lithium–oxygen batteries are of great interest because of their very high-energy density; however, they present many challenges, one of which is the low cycling stability of a lithium (Li) metal anode. Here, we report a composite protective layer (CPL) comprising Al2O3 and polyvinylidene fluoride-hexafluoro propylene for a Li metal anode that resulted in a dramatic enhancement of the cycling stability of a lithium–oxygen battery. A cell with the CPL-coated Li metal anode exhibited more than 3 times higher discharge capacity at the 80th cycle compared to a cell without the CPL. X-ray photoelectron spectroscopy measurements for the cycled lithium metal anodes confirm that the CPL effectively suppressed electrolyte decomposition at the surface of the Li metal anode.
