Regulating adsorption ability toward polysulfides in a porous carbon/Cu3P hybrid for an ultrastable high‐temperature lithium–sulfur battery

Abstract Lithium–sulfur batteries (LSBs) can work at high temperatures, but they suffer from poor cycle life stability due to the “shuttle effect” of polysulfides. In this study, pollen‐derived porous carbon/cuprous phosphide (PC/Cu3P) hybrids were rationally synthesized using a one‐step carbonizati...

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Autores principales:	Yichuan Guo, Rabia Khatoon, Jianguo Lu, Qinggang He, Xiang Gao, Xiaopeng Yang, Xun Hu, Yang Wu, Jiale Lian, Zhoupeng Li, Zhizhen Ye
Formato:	article
Lenguaje:	EN
Publicado:	Wiley 2021
Materias:	density functional theory calculation high operating temperature lithium–sulfur battery polysulfide adsorption porous carbon/Cu3P hybrid ultrastability Production of electric energy or power. Powerplants. Central stations TK1001-1841
Acceso en línea:	https://doaj.org/article/8e76bd9a339f414daa2fbd6681744083
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spelling	oai:doaj.org-article:8e76bd9a339f414daa2fbd66817440832021-11-24T14:45:30ZRegulating adsorption ability toward polysulfides in a porous carbon/Cu3P hybrid for an ultrastable high‐temperature lithium–sulfur battery2637-936810.1002/cey2.145https://doaj.org/article/8e76bd9a339f414daa2fbd66817440832021-11-01T00:00:00Zhttps://doi.org/10.1002/cey2.145https://doaj.org/toc/2637-9368Abstract Lithium–sulfur batteries (LSBs) can work at high temperatures, but they suffer from poor cycle life stability due to the “shuttle effect” of polysulfides. In this study, pollen‐derived porous carbon/cuprous phosphide (PC/Cu3P) hybrids were rationally synthesized using a one‐step carbonization method using pollen as the source material, acting as the sulfur host for LSBs. In the hybrid, polar Cu3P can markedly inhibit the “shuttle effect” by regulating the adsorption ability toward polysulfides, as confirmed by theoretical calculations and experimental tests. As an example, the camellia pollen porous carbon (CPC)/Cu3P/S electrode shows a high capacity of 1205.6 mAh g−1 at 0.1 C, an ultralow capacity decay rate of 0.038% per cycle after 1000 cycles at 1 C, and a rather high initial Coulombic efficiency of 98.5%. The CPC/Cu3P LSBs can work well at high temperatures, having a high capacity of 545.9 mAh g−1 at 1 C even at 150°C. The strategy of the PC/Cu3P hybrid proposed in this study is expected to be an ideal cathode for ultrastable high‐temperature LSBs. We believe that this strategy is universal and worthy of in‐depth development for the next generation energy storage devices.Yichuan GuoRabia KhatoonJianguo LuQinggang HeXiang GaoXiaopeng YangXun HuYang WuJiale LianZhoupeng LiZhizhen YeWileyarticledensity functional theory calculationhigh operating temperaturelithium–sulfur batterypolysulfide adsorptionporous carbon/Cu3P hybridultrastabilityProduction of electric energy or power. Powerplants. Central stationsTK1001-1841ENCarbon Energy, Vol 3, Iss 6, Pp 841-855 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	density functional theory calculation high operating temperature lithium–sulfur battery polysulfide adsorption porous carbon/Cu3P hybrid ultrastability Production of electric energy or power. Powerplants. Central stations TK1001-1841
spellingShingle	density functional theory calculation high operating temperature lithium–sulfur battery polysulfide adsorption porous carbon/Cu3P hybrid ultrastability Production of electric energy or power. Powerplants. Central stations TK1001-1841 Yichuan Guo Rabia Khatoon Jianguo Lu Qinggang He Xiang Gao Xiaopeng Yang Xun Hu Yang Wu Jiale Lian Zhoupeng Li Zhizhen Ye Regulating adsorption ability toward polysulfides in a porous carbon/Cu3P hybrid for an ultrastable high‐temperature lithium–sulfur battery
description	Abstract Lithium–sulfur batteries (LSBs) can work at high temperatures, but they suffer from poor cycle life stability due to the “shuttle effect” of polysulfides. In this study, pollen‐derived porous carbon/cuprous phosphide (PC/Cu3P) hybrids were rationally synthesized using a one‐step carbonization method using pollen as the source material, acting as the sulfur host for LSBs. In the hybrid, polar Cu3P can markedly inhibit the “shuttle effect” by regulating the adsorption ability toward polysulfides, as confirmed by theoretical calculations and experimental tests. As an example, the camellia pollen porous carbon (CPC)/Cu3P/S electrode shows a high capacity of 1205.6 mAh g−1 at 0.1 C, an ultralow capacity decay rate of 0.038% per cycle after 1000 cycles at 1 C, and a rather high initial Coulombic efficiency of 98.5%. The CPC/Cu3P LSBs can work well at high temperatures, having a high capacity of 545.9 mAh g−1 at 1 C even at 150°C. The strategy of the PC/Cu3P hybrid proposed in this study is expected to be an ideal cathode for ultrastable high‐temperature LSBs. We believe that this strategy is universal and worthy of in‐depth development for the next generation energy storage devices.
format	article
author	Yichuan Guo Rabia Khatoon Jianguo Lu Qinggang He Xiang Gao Xiaopeng Yang Xun Hu Yang Wu Jiale Lian Zhoupeng Li Zhizhen Ye
author_facet	Yichuan Guo Rabia Khatoon Jianguo Lu Qinggang He Xiang Gao Xiaopeng Yang Xun Hu Yang Wu Jiale Lian Zhoupeng Li Zhizhen Ye
author_sort	Yichuan Guo
title	Regulating adsorption ability toward polysulfides in a porous carbon/Cu3P hybrid for an ultrastable high‐temperature lithium–sulfur battery
title_short	Regulating adsorption ability toward polysulfides in a porous carbon/Cu3P hybrid for an ultrastable high‐temperature lithium–sulfur battery
title_full	Regulating adsorption ability toward polysulfides in a porous carbon/Cu3P hybrid for an ultrastable high‐temperature lithium–sulfur battery
title_fullStr	Regulating adsorption ability toward polysulfides in a porous carbon/Cu3P hybrid for an ultrastable high‐temperature lithium–sulfur battery
title_full_unstemmed	Regulating adsorption ability toward polysulfides in a porous carbon/Cu3P hybrid for an ultrastable high‐temperature lithium–sulfur battery
title_sort	regulating adsorption ability toward polysulfides in a porous carbon/cu3p hybrid for an ultrastable high‐temperature lithium–sulfur battery
publisher	Wiley
publishDate	2021
url	https://doaj.org/article/8e76bd9a339f414daa2fbd6681744083
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Regulating adsorption ability toward polysulfides in a porous carbon/Cu3P hybrid for an ultrastable high‐temperature lithium–sulfur battery

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