Nafion based surface protective layer for lithium metal in lithium oxygen batteries
- Title
- Nafion based surface protective layer for lithium metal in lithium oxygen batteries
- Author
- 응웬티엔투렁
- Alternative Author(s)
- 응웬티엔투렁
- Advisor(s)
- Prof. Yang-Kook Sun
- Issue Date
- 2021. 2
- Publisher
- 한양대학교
- Degree
- Master
- Abstract
- Constructing a sustainable surface protection layer for lithium metal anode
is a critical unsolved challenge to improve the long term cycle performance
of lithium oxygen (Li O 2 ) batteries. Recently, a variety of approaches have
been proposed for lithium metal surface protection. However, the
inadequate evaluation of the stability of the lithium metal protective layer is
a shortcoming in previous reports. Therefore, in this study , the Nafion
based composite layer (NCL) as a electrochemically and chemically stable
protective layer for lithium metal in Li O 2 batteries was fabricated.
Simultaneously, the outperformance of electrochemical and chemical
stability of NCL in comparison wi th reported lithium metal protective
materials was investigated. Li O 2 batteries using NCL coated lithium metal
exhibited good reversible oxygen gas in discharge and recharge processes
with the mini m um parasitic reactions from spontaneous reactions between
reactive oxygen species and protective materials. NCL also exhibited
superior electrochemical stability which was verified with not only Li
stripping and plating test but also
a severe operating condition with high current and capacity values in large scale Li O 2 pouch cell s .
- URI
- https://repository.hanyang.ac.kr/handle/20.500.11754/159679http://hanyang.dcollection.net/common/orgView/200000485632
- Appears in Collections:
- GRADUATE SCHOOL[S](대학원) > ENERGY ENGINEERING(에너지공학과) > Theses (Master)
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