Sustainable Redox Mediation for Lithium–Oxygen Batteries by a Composite Protective Layer on the Lithium-Metal Anode  

Dong Jin Lee†, Hongkyung Lee†, Yun-Jung Kim , Jung-Ki Park ,* and Hee-Tak Kim* († denotes equal contribution) 

  

Advanced Materials, Vol. 28, Issue 5, page 857-863 (February 3, 2016)

[Abstract]

A synergic combination of a soluble ­redox mediator and a protected Li metal ­electrode to prevent the self-discharge of the redox mediator is realized by ­exploiting a 2,2,6,6-tetramethylpiperidinyl 1-oxyl (TEMPO) redox mediator and an Al2O3/PVdF-HFP composite ­protective layer (CPL). Stabilization of Li metal by simple CPL coating is effective at ­suppressing the chemical reduction of the oxidized TEMPO and opens up the possibility of sustainable redox mediation for robust cycling of Li–O2 batteries. 

 

관련기사 링크: 연합뉴스 : '대용량 차세대전지 리튬공기전지 수명 3배 늘렸다' 기사 링크: http://www.yonhapnews.co.kr/bulletin/2016/03/09/0200000000AKR20160309061700063.HTML?input=1195m

아시아경제: '보호막 씌워 리튬공기전지 수명 3배 연장' 기사 링크: http://view.asiae.co.kr/news/view.htm?idxno=2016030909211043261

전자신문: '전기차 차세대 전지 '리튬공기전지' 수명 3배 늘어나' 기사 링크: http://www.etnews.com/20160309000161

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