Double-shelled phosphorus and nitrogen codoped carbon nanospheres as efficient polysulfide mediator for high-performance lithium-sulfur batteries

Lithium–sulfur batteries are regarded as very promising energy storage devices due to their high energy density, low cost, and environmental friendliness; however, their insulating properties and the instability of sulfur‐based electrodes impede the practical applications of Li–S batteries. Here, a...

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Main Authors: Wang, Jin, Yang, Hao, Chen, Zhen, Zhang, Lili, Liu, Jilei, Liang, Pei, Yang, Hui, Shen, Xiaodong, Shen, Ze Xiang
Other Authors: School of Physical and Mathematical Sciences
Format: Article
Language:English
Published: 2019
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Online Access:https://hdl.handle.net/10356/104730
http://hdl.handle.net/10220/47397
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-1047302023-02-28T19:41:02Z Double-shelled phosphorus and nitrogen codoped carbon nanospheres as efficient polysulfide mediator for high-performance lithium-sulfur batteries Wang, Jin Yang, Hao Chen, Zhen Zhang, Lili Liu, Jilei Liang, Pei Yang, Hui Shen, Xiaodong Shen, Ze Xiang School of Physical and Mathematical Sciences Carbon Spheres Double Shelled Nanospheres DRNTU::Science::Physics Lithium–sulfur batteries are regarded as very promising energy storage devices due to their high energy density, low cost, and environmental friendliness; however, their insulating properties and the instability of sulfur‐based electrodes impede the practical applications of Li–S batteries. Here, a versatile strategy to synthesize double‐shelled nitrogen and phosphorus codoped carbon spheres (NPDSCS) as an efficient sulfur host for Li–S batteries is reported. With strong trapping, good affinity, high adsorption for polysulfides, and the bifunctional catalyzing for sulfur redox processes, the developed NPDSCS cathodes with a high S loading of 72.4% exhibit large specific discharge capacity of 1326 mAh g−1 at 0.1C, high Coulombic efficiency, good rate capability, and excellent cycling performance with a reversible capacity of 814 mAh g−1 at 1C after 500 cycles. Published version 2019-01-07T04:56:32Z 2019-12-06T21:38:26Z 2019-01-07T04:56:32Z 2019-12-06T21:38:26Z 2018 Journal Article Wang, J., Yang, H., Chen, Z., Zhang, L., Liu, J., Liang, P., ... Shen, Z. X. (2018). Double-Shelled Phosphorus and Nitrogen Codoped Carbon Nanospheres as Efficient Polysulfide Mediator for High-Performance Lithium-Sulfur Batteries. Advanced Science, 5(11), 1800621-. doi:10.1002/advs.201800621 https://hdl.handle.net/10356/104730 http://hdl.handle.net/10220/47397 10.1002/advs.201800621 en Advanced Science © 2018 The Authors. Published by WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. 11 p. application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic Carbon Spheres
Double Shelled Nanospheres
DRNTU::Science::Physics
spellingShingle Carbon Spheres
Double Shelled Nanospheres
DRNTU::Science::Physics
Wang, Jin
Yang, Hao
Chen, Zhen
Zhang, Lili
Liu, Jilei
Liang, Pei
Yang, Hui
Shen, Xiaodong
Shen, Ze Xiang
Double-shelled phosphorus and nitrogen codoped carbon nanospheres as efficient polysulfide mediator for high-performance lithium-sulfur batteries
description Lithium–sulfur batteries are regarded as very promising energy storage devices due to their high energy density, low cost, and environmental friendliness; however, their insulating properties and the instability of sulfur‐based electrodes impede the practical applications of Li–S batteries. Here, a versatile strategy to synthesize double‐shelled nitrogen and phosphorus codoped carbon spheres (NPDSCS) as an efficient sulfur host for Li–S batteries is reported. With strong trapping, good affinity, high adsorption for polysulfides, and the bifunctional catalyzing for sulfur redox processes, the developed NPDSCS cathodes with a high S loading of 72.4% exhibit large specific discharge capacity of 1326 mAh g−1 at 0.1C, high Coulombic efficiency, good rate capability, and excellent cycling performance with a reversible capacity of 814 mAh g−1 at 1C after 500 cycles.
author2 School of Physical and Mathematical Sciences
author_facet School of Physical and Mathematical Sciences
Wang, Jin
Yang, Hao
Chen, Zhen
Zhang, Lili
Liu, Jilei
Liang, Pei
Yang, Hui
Shen, Xiaodong
Shen, Ze Xiang
format Article
author Wang, Jin
Yang, Hao
Chen, Zhen
Zhang, Lili
Liu, Jilei
Liang, Pei
Yang, Hui
Shen, Xiaodong
Shen, Ze Xiang
author_sort Wang, Jin
title Double-shelled phosphorus and nitrogen codoped carbon nanospheres as efficient polysulfide mediator for high-performance lithium-sulfur batteries
title_short Double-shelled phosphorus and nitrogen codoped carbon nanospheres as efficient polysulfide mediator for high-performance lithium-sulfur batteries
title_full Double-shelled phosphorus and nitrogen codoped carbon nanospheres as efficient polysulfide mediator for high-performance lithium-sulfur batteries
title_fullStr Double-shelled phosphorus and nitrogen codoped carbon nanospheres as efficient polysulfide mediator for high-performance lithium-sulfur batteries
title_full_unstemmed Double-shelled phosphorus and nitrogen codoped carbon nanospheres as efficient polysulfide mediator for high-performance lithium-sulfur batteries
title_sort double-shelled phosphorus and nitrogen codoped carbon nanospheres as efficient polysulfide mediator for high-performance lithium-sulfur batteries
publishDate 2019
url https://hdl.handle.net/10356/104730
http://hdl.handle.net/10220/47397
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