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X-ray Absorption Spectroscopy Characterization of a Li/S Cell
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, CH(3)(CH(2))(15)N(+)(CH(3))(3)Br(−)) a...
Autores principales: | , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2016
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5302544/ https://www.ncbi.nlm.nih.gov/pubmed/28344271 http://dx.doi.org/10.3390/nano6010014 |
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author | Ye, Yifan Kawase, Ayako Song, Min-Kyu Feng, Bingmei Liu, Yi-Sheng Marcus, Matthew A. Feng, Jun Cairns, Elton J. Guo, Jinghua Zhu, Junfa |
author_facet | Ye, Yifan Kawase, Ayako Song, Min-Kyu Feng, Bingmei Liu, Yi-Sheng Marcus, Matthew A. Feng, Jun Cairns, Elton J. Guo, Jinghua Zhu, Junfa |
author_sort | Ye, Yifan |
collection | PubMed |
description | 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, CH(3)(CH(2))(15)N(+)(CH(3))(3)Br(−)) 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 Na(2)S(x) 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. |
format | Online Article Text |
id | pubmed-5302544 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2016 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-53025442017-03-21 X-ray Absorption Spectroscopy Characterization of a Li/S Cell Ye, Yifan Kawase, Ayako Song, Min-Kyu Feng, Bingmei Liu, Yi-Sheng Marcus, Matthew A. Feng, Jun Cairns, Elton J. Guo, Jinghua Zhu, Junfa Nanomaterials (Basel) Article 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, CH(3)(CH(2))(15)N(+)(CH(3))(3)Br(−)) 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 Na(2)S(x) 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. MDPI 2016-01-11 /pmc/articles/PMC5302544/ /pubmed/28344271 http://dx.doi.org/10.3390/nano6010014 Text en © 2016 by the authors; licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons by Attribution (CC-BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Ye, Yifan Kawase, Ayako Song, Min-Kyu Feng, Bingmei Liu, Yi-Sheng Marcus, Matthew A. Feng, Jun Cairns, Elton J. Guo, Jinghua Zhu, Junfa X-ray Absorption Spectroscopy Characterization of a Li/S Cell |
title | X-ray Absorption Spectroscopy Characterization of a Li/S Cell |
title_full | X-ray Absorption Spectroscopy Characterization of a Li/S Cell |
title_fullStr | X-ray Absorption Spectroscopy Characterization of a Li/S Cell |
title_full_unstemmed | X-ray Absorption Spectroscopy Characterization of a Li/S Cell |
title_short | X-ray Absorption Spectroscopy Characterization of a Li/S Cell |
title_sort | x-ray absorption spectroscopy characterization of a li/s cell |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5302544/ https://www.ncbi.nlm.nih.gov/pubmed/28344271 http://dx.doi.org/10.3390/nano6010014 |
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