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Comprehensive Design of the High-Sulfur-Loading Li–S Battery Based on MXene Nanosheets

The lithium-sulfur battery is the subject of much recent attention due to the high theoretical energy density, but practical applications are challenged by fast decay owing to polysulfide shuttle and electrode architecture degradation. A comprehensive study of the sulfur host microstructure design a...

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Autores principales: Zhang, Shouzheng, Zhong, Ning, Zhou, Xing, Zhang, Mingjie, Huang, Xiangping, Yang, Xuelin, Meng, Ruijin, Liang, Xiao
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer Singapore 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7770945/
https://www.ncbi.nlm.nih.gov/pubmed/34138112
http://dx.doi.org/10.1007/s40820-020-00449-7
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author Zhang, Shouzheng
Zhong, Ning
Zhou, Xing
Zhang, Mingjie
Huang, Xiangping
Yang, Xuelin
Meng, Ruijin
Liang, Xiao
author_facet Zhang, Shouzheng
Zhong, Ning
Zhou, Xing
Zhang, Mingjie
Huang, Xiangping
Yang, Xuelin
Meng, Ruijin
Liang, Xiao
author_sort Zhang, Shouzheng
collection PubMed
description The lithium-sulfur battery is the subject of much recent attention due to the high theoretical energy density, but practical applications are challenged by fast decay owing to polysulfide shuttle and electrode architecture degradation. A comprehensive study of the sulfur host microstructure design and the cell architecture construction based on the MXene phase (Ti(3)C(2)T(x) nanosheets) is performed, aiming at realize stable cycling performance of Li–S battery with high sulfur areal loading. The interwoven KB@Ti(3)C(2)T(x) composite formed by self-assembly of MXene and Ktejen black, not only provides superior conductivity and maintains the electrode integrality bearing the volume expansion/shrinkage when used as the sulfur host, but also functions as an interlayer on separator to further retard the polysulfide cross-diffusion that possibly escaped from the cathode. The KB@Ti(3)C(2)T(x) interlayer is only 0.28 mg cm(−2) in areal loading and 3 μm in thickness, which accounts a little contribution to the thick sulfur electrode; thus, the impacts on the energy density is minimal. By coupling the robust KB@Ti(3)C(2)T(x) cathode and the effective KB@Ti(3)C(2)T(x) modified separator, a stable Li–S battery with high sulfur areal loading (5.6 mg cm(−2)) and high areal capacity (6.4 mAh cm(−2)) at relatively lean electrolyte is achieved. [Image: see text] ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (10.1007/s40820-020-00449-7) contains supplementary material, which is available to authorized users.
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spelling pubmed-77709452021-06-14 Comprehensive Design of the High-Sulfur-Loading Li–S Battery Based on MXene Nanosheets Zhang, Shouzheng Zhong, Ning Zhou, Xing Zhang, Mingjie Huang, Xiangping Yang, Xuelin Meng, Ruijin Liang, Xiao Nanomicro Lett Article The lithium-sulfur battery is the subject of much recent attention due to the high theoretical energy density, but practical applications are challenged by fast decay owing to polysulfide shuttle and electrode architecture degradation. A comprehensive study of the sulfur host microstructure design and the cell architecture construction based on the MXene phase (Ti(3)C(2)T(x) nanosheets) is performed, aiming at realize stable cycling performance of Li–S battery with high sulfur areal loading. The interwoven KB@Ti(3)C(2)T(x) composite formed by self-assembly of MXene and Ktejen black, not only provides superior conductivity and maintains the electrode integrality bearing the volume expansion/shrinkage when used as the sulfur host, but also functions as an interlayer on separator to further retard the polysulfide cross-diffusion that possibly escaped from the cathode. The KB@Ti(3)C(2)T(x) interlayer is only 0.28 mg cm(−2) in areal loading and 3 μm in thickness, which accounts a little contribution to the thick sulfur electrode; thus, the impacts on the energy density is minimal. By coupling the robust KB@Ti(3)C(2)T(x) cathode and the effective KB@Ti(3)C(2)T(x) modified separator, a stable Li–S battery with high sulfur areal loading (5.6 mg cm(−2)) and high areal capacity (6.4 mAh cm(−2)) at relatively lean electrolyte is achieved. [Image: see text] ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (10.1007/s40820-020-00449-7) contains supplementary material, which is available to authorized users. Springer Singapore 2020-05-20 /pmc/articles/PMC7770945/ /pubmed/34138112 http://dx.doi.org/10.1007/s40820-020-00449-7 Text en © The Author(s) 2020 Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Zhang, Shouzheng
Zhong, Ning
Zhou, Xing
Zhang, Mingjie
Huang, Xiangping
Yang, Xuelin
Meng, Ruijin
Liang, Xiao
Comprehensive Design of the High-Sulfur-Loading Li–S Battery Based on MXene Nanosheets
title Comprehensive Design of the High-Sulfur-Loading Li–S Battery Based on MXene Nanosheets
title_full Comprehensive Design of the High-Sulfur-Loading Li–S Battery Based on MXene Nanosheets
title_fullStr Comprehensive Design of the High-Sulfur-Loading Li–S Battery Based on MXene Nanosheets
title_full_unstemmed Comprehensive Design of the High-Sulfur-Loading Li–S Battery Based on MXene Nanosheets
title_short Comprehensive Design of the High-Sulfur-Loading Li–S Battery Based on MXene Nanosheets
title_sort comprehensive design of the high-sulfur-loading li–s battery based on mxene nanosheets
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7770945/
https://www.ncbi.nlm.nih.gov/pubmed/34138112
http://dx.doi.org/10.1007/s40820-020-00449-7
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