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DOI	10.1039/c8ee00721g
	Revealing the charge/discharge mechanism of Na-O2 cells by: In situ soft X-ray absorption spectroscopy
	Banis M.N.; Yadegari H.; Sun Q.; Regier T.; Boyko T.; Zhou J.; Yiu Y.M.; Li R.; Hu Y.; Sham T.K.; Sun X.
发表日期	2018
ISSN	17545692
起始页码	2073
结束页码	2077
卷号	11 期号:8
英文摘要	Developing high energy density batteries, such as metal-air systems, requires a good understanding of their underlying electrochemical principles. In situ characterization methods provide valuable insight into the discharge/charge mechanism of Na-O2 cells. However, previous application of soft X-ray absorption spectroscopy has been limited to ex situ studies on the discharge products of the cell. Here we report an in situ soft X-ray absorption technique for Na-O2 cells to study the formation and decomposition of the discharge products during battery cycling. Taking advantage of the elemental selectivity and chemical sensitivity of soft X-ray absorption spectroscopy, we reveal the instability of discharge products in the Na-O2 cell environment. Our results illustrate that in situ soft X-ray absorption spectroscopy is an efficient probe to study the electrochemical mechanism of alkali metal-O2 energy storage systems. © 2018 The Royal Society of Chemistry.
英文关键词	Alkali metals; Electric discharges; Sodium compounds; X ray absorption spectroscopy; X rays; Charge/discharge; Chemical sensitivity; Electrochemical mechanisms; Energy storage systems; High-energy density batteries; In-situ characterization; Soft x-ray absorption spectroscopies; Soft-X-ray absorption; Secondary batteries; atomic absorption spectroscopy; cell; decomposition analysis; energy storage; in situ measurement; probe; X-ray
语种	英语
来源期刊	Energy & Environmental Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/190181
作者单位	Department of Mechanical and Materials Engineering, University of Western Ontario, London, ON, Canada; Soochow-Western Centre for Synchrotron Radiation Research, University of Western Ontario, London, ON, Canada; Canadian Light Source, Saskatoon, SK, Canada; Department of Chemistry, University of Western Ontario, London, ON, Canada
推荐引用方式 GB/T 7714	Banis M.N.,Yadegari H.,Sun Q.,et al. Revealing the charge/discharge mechanism of Na-O2 cells by: In situ soft X-ray absorption spectroscopy[J],2018,11(8).
APA	Banis M.N..,Yadegari H..,Sun Q..,Regier T..,Boyko T..,...&Sun X..(2018).Revealing the charge/discharge mechanism of Na-O2 cells by: In situ soft X-ray absorption spectroscopy.Energy & Environmental Science,11(8).
MLA	Banis M.N.,et al."Revealing the charge/discharge mechanism of Na-O2 cells by: In situ soft X-ray absorption spectroscopy".Energy & Environmental Science 11.8(2018).