x-ray absorption spectroscopy characterization of a li/s cell

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ID: 186311
2016
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Ranked #59 of 133 articles by views in progress in neuro-psychopharmacology & biological psychiatry

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摘要
The X-ray absorption spectroscopy technique has been applied to study different stages of the lithium/sulfur (Li/S) cell life cycle. We have investigated how speciation of S in Li/S cathodes changes upon the introduction of CTAB (cetyltrimethylammonium bromide, CH3(CH2)15N+(CH3)3Br−) and with charge/discharge cycling. The introduction of CTAB changes the synthesis reaction pathway dramatically due to the interaction of CTAB with the terminal S atoms of the polysulfide ions in the Na2Sx solution. For the cycled Li/S cell, the loss of electrochemically active sulfur and the accumulation of a compact blocking insulating layer of unexpected sulfur reaction products on the cathode surface during the charge/discharge processes make the capacity decay. A modified coin cell and a vacuum-compatible three-electrode electro-chemical cell have been introduced for further in-situ/in-operando studies.
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ye2016nanomaterialsx-ray 使用此键在稿件中自动引用，同时使用 SciMatic 稿件管理器或论文管理器
作者 ;Yifan Ye;Ayako Kawase;Min-Kyu Song;Bingmei Feng;Yi-Sheng Liu;Matthew A. Marcus;Jun Feng;Elton J. Cairns;Jinghua Guo;Junfa Zhu
期刊 progress in neuro-psychopharmacology & biological psychiatry
年份 2016
DOI
10.3390/nano6010014
URL
http://www.mdpi.com/2079-4991/6/1/14
关键词
synthesis cetyltrimethylammonium bromide

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