EFFECT OF WATER-SOLUBLE POLYMER NV-1A ON ELECTROCHEMICAL PARAMETERS OF SULFUR ELECTRODE

EFFECT OF WATER-SOLUBLE POLYMER NV-1A ON ELECTROCHEMICAL PARAMETERS OF SULFUR ELECTRODE

Studies have shown the possibility of a long cycle of sulfur electrode with a high content of active material. The use of water-soluble binder material NV-1A leads to the realization of high current loads in the Li-S battery. Impedance spectroscopy has shown that the low coulombic efficiency in the...

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Date:2021
Main Authors: Krushevskyi, Oleksandr, Zhou, MiaoMiao, Potapenko, Oleksandr, Potapenko, Anna
Format: Article
Language:English
Published: V.I.Vernadsky Institute of General and Inorganic Chemistry 2021
Online Access:https://ucj.org.ua/index.php/journal/article/view/382
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Journal Title:Ukrainian Chemistry Journal

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Ukrainian Chemistry Journal
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spelling oai:ojs2.1444248.nisspano.web.hosting-test.net:article-3822022-01-10T10:53:24Z EFFECT OF WATER-SOLUBLE POLYMER NV-1A ON ELECTROCHEMICAL PARAMETERS OF SULFUR ELECTRODE Krushevskyi, Oleksandr Zhou, MiaoMiao Potapenko, Oleksandr Potapenko, Anna sulfur electrode, discharge capacity, coulombic efficiency, cyclability. Studies have shown the possibility of a long cycle of sulfur electrode with a high content of active material. The use of water-soluble binder material NV-1A leads to the realization of high current loads in the Li-S battery. Impedance spectroscopy has shown that the low coulombic efficiency in the cycling of the sulfur electrode is primarily due to the spontaneous dissolution of sulfur in the electrolyte, which requires high energy consumption when charging the Li-S battery. The reduction of the specific capacity during cycling is associated with the formation and accumulation of non-conductive films of short-chain polysulfides. On the basis of the conducted researches and the review of the literature sources ways of overcoming of this problem are offered. The ability of cycling the sulfur electrodes at the high current loads has been shown. The discharge capacity values of the sulfur electrodes at the current load 790 mA∙cm-2 are 500 і 420 mAh∙g-1 on the 5-th and 100-th cycles, accordingly. Using the method of impedance spectroscopy, it has been supposed that the formation and accumulation of unconductive Li2S2 / Li2S phases is the main process, which induce the quick capacity reduction of Li - S batteries upon cycling. V.I.Vernadsky Institute of General and Inorganic Chemistry 2021-12-24 Article Article Physical chemistry Физическая xимия Фізична xімія application/pdf https://ucj.org.ua/index.php/journal/article/view/382 10.33609/2708-129X.87.11.2021.55-59 Ukrainian Chemistry Journal; Vol. 87 No. 11 (2021): Ukrainian Chemistry Journal; 55-59 Украинский химический журнал; Том 87 № 11 (2021): Ukrainian Chemistry Journal; 55-59 Український хімічний журнал; Том 87 № 11 (2021): Український хімічний журнал; 55-59 2708-129X 2708-1281 en https://ucj.org.ua/index.php/journal/article/view/382/203
institution Ukrainian Chemistry Journal
baseUrl_str
datestamp_date 2022-01-10T10:53:24Z
collection OJS
language English
topic_facet sulfur electrode
discharge capacity
coulombic efficiency
cyclability.
format Article
author Krushevskyi, Oleksandr
Zhou, MiaoMiao
Potapenko, Oleksandr
Potapenko, Anna
spellingShingle Krushevskyi, Oleksandr
Zhou, MiaoMiao
Potapenko, Oleksandr
Potapenko, Anna
EFFECT OF WATER-SOLUBLE POLYMER NV-1A ON ELECTROCHEMICAL PARAMETERS OF SULFUR ELECTRODE
author_facet Krushevskyi, Oleksandr
Zhou, MiaoMiao
Potapenko, Oleksandr
Potapenko, Anna
author_sort Krushevskyi, Oleksandr
title EFFECT OF WATER-SOLUBLE POLYMER NV-1A ON ELECTROCHEMICAL PARAMETERS OF SULFUR ELECTRODE
title_short EFFECT OF WATER-SOLUBLE POLYMER NV-1A ON ELECTROCHEMICAL PARAMETERS OF SULFUR ELECTRODE
title_full EFFECT OF WATER-SOLUBLE POLYMER NV-1A ON ELECTROCHEMICAL PARAMETERS OF SULFUR ELECTRODE
title_fullStr EFFECT OF WATER-SOLUBLE POLYMER NV-1A ON ELECTROCHEMICAL PARAMETERS OF SULFUR ELECTRODE
title_full_unstemmed EFFECT OF WATER-SOLUBLE POLYMER NV-1A ON ELECTROCHEMICAL PARAMETERS OF SULFUR ELECTRODE
title_sort effect of water-soluble polymer nv-1a on electrochemical parameters of sulfur electrode
description Studies have shown the possibility of a long cycle of sulfur electrode with a high content of active material. The use of water-soluble binder material NV-1A leads to the realization of high current loads in the Li-S battery. Impedance spectroscopy has shown that the low coulombic efficiency in the cycling of the sulfur electrode is primarily due to the spontaneous dissolution of sulfur in the electrolyte, which requires high energy consumption when charging the Li-S battery. The reduction of the specific capacity during cycling is associated with the formation and accumulation of non-conductive films of short-chain polysulfides. On the basis of the conducted researches and the review of the literature sources ways of overcoming of this problem are offered. The ability of cycling the sulfur electrodes at the high current loads has been shown. The discharge capacity values of the sulfur electrodes at the current load 790 mA∙cm-2 are 500 і 420 mAh∙g-1 on the 5-th and 100-th cycles, accordingly. Using the method of impedance spectroscopy, it has been supposed that the formation and accumulation of unconductive Li2S2 / Li2S phases is the main process, which induce the quick capacity reduction of Li - S batteries upon cycling.
publisher V.I.Vernadsky Institute of General and Inorganic Chemistry
publishDate 2021
url https://ucj.org.ua/index.php/journal/article/view/382
work_keys_str_mv AT krushevskyioleksandr effectofwatersolublepolymernv1aonelectrochemicalparametersofsulfurelectrode
AT zhoumiaomiao effectofwatersolublepolymernv1aonelectrochemicalparametersofsulfurelectrode
AT potapenkooleksandr effectofwatersolublepolymernv1aonelectrochemicalparametersofsulfurelectrode
AT potapenkoanna effectofwatersolublepolymernv1aonelectrochemicalparametersofsulfurelectrode
first_indexed 2025-09-24T17:43:42Z
last_indexed 2025-09-24T17:43:42Z
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