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Suppressing Self-Discharge with Polymeric Sulfur in Li-S Batteries
Lithium–sulfur (Li-S) batteries, due to their high theoretical capacity, intrinsic overcharge protection, and low cost, are considered as the most promising candidates for next-generation energy storage systems. To promote widespread use of Li-S batteries, various tactics have been reported to impro...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6337404/ https://www.ncbi.nlm.nih.gov/pubmed/30585220 http://dx.doi.org/10.3390/ma12010064 |
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author | Jiang, Min Gan, Bingqing Deng, Yongqi Xiong, Yin Tan, Ruixuan |
author_facet | Jiang, Min Gan, Bingqing Deng, Yongqi Xiong, Yin Tan, Ruixuan |
author_sort | Jiang, Min |
collection | PubMed |
description | Lithium–sulfur (Li-S) batteries, due to their high theoretical capacity, intrinsic overcharge protection, and low cost, are considered as the most promising candidates for next-generation energy storage systems. To promote widespread use of Li-S batteries, various tactics have been reported to improve the columbic efficiency and to suppress the shuttle effect. Herein, we report a novel polymeric sulfur via heat radical polymerization, for the Li-S battery. The insolubles after CS(2) washing, and the changes in XRD (X-ray diffraction) results imply the formation of polymeric sulfur. Owing to the absence of cyclic S(8) molecular, the shuttle effect is depressed, and the polymeric sulfur cathodes exhibit lower self-discharge rates, higher sulfur utilization, better rates of performance, and enhanced cycling stabilities than the commercial sublimed sulfur. Thus, polymeric sulfur provides a new train of thought and tactics for restricting the formation of the dissolution of polysulfides, and self-discharge. |
format | Online Article Text |
id | pubmed-6337404 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-63374042019-01-22 Suppressing Self-Discharge with Polymeric Sulfur in Li-S Batteries Jiang, Min Gan, Bingqing Deng, Yongqi Xiong, Yin Tan, Ruixuan Materials (Basel) Article Lithium–sulfur (Li-S) batteries, due to their high theoretical capacity, intrinsic overcharge protection, and low cost, are considered as the most promising candidates for next-generation energy storage systems. To promote widespread use of Li-S batteries, various tactics have been reported to improve the columbic efficiency and to suppress the shuttle effect. Herein, we report a novel polymeric sulfur via heat radical polymerization, for the Li-S battery. The insolubles after CS(2) washing, and the changes in XRD (X-ray diffraction) results imply the formation of polymeric sulfur. Owing to the absence of cyclic S(8) molecular, the shuttle effect is depressed, and the polymeric sulfur cathodes exhibit lower self-discharge rates, higher sulfur utilization, better rates of performance, and enhanced cycling stabilities than the commercial sublimed sulfur. Thus, polymeric sulfur provides a new train of thought and tactics for restricting the formation of the dissolution of polysulfides, and self-discharge. MDPI 2018-12-25 /pmc/articles/PMC6337404/ /pubmed/30585220 http://dx.doi.org/10.3390/ma12010064 Text en © 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Jiang, Min Gan, Bingqing Deng, Yongqi Xiong, Yin Tan, Ruixuan Suppressing Self-Discharge with Polymeric Sulfur in Li-S Batteries |
title | Suppressing Self-Discharge with Polymeric Sulfur in Li-S Batteries |
title_full | Suppressing Self-Discharge with Polymeric Sulfur in Li-S Batteries |
title_fullStr | Suppressing Self-Discharge with Polymeric Sulfur in Li-S Batteries |
title_full_unstemmed | Suppressing Self-Discharge with Polymeric Sulfur in Li-S Batteries |
title_short | Suppressing Self-Discharge with Polymeric Sulfur in Li-S Batteries |
title_sort | suppressing self-discharge with polymeric sulfur in li-s batteries |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6337404/ https://www.ncbi.nlm.nih.gov/pubmed/30585220 http://dx.doi.org/10.3390/ma12010064 |
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