Mixed-dimensional V(2)CT(x)/Ti(3)C(2)T(x) composite interlayer to boost electrochemical performance of Li-S batteries

Abstract: A mixed-dimensional V(2)CT(x)/Ti(3)C(2)T(x) composite interlayer was successfully prepared to tackle severe polysulfide (LiPS) shuttling and sluggish sulfur redox kinetics for high-performance lithium–sulfur batteries. In the unique nanoarchitecture, two-dimensional Ti(3)C(2)T(x) nanosheet...

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Autores principales: Zhang, Weiqi, Zhang, Wenchao, Yao, Jing, Lu, Huiqing, Zhang, Xitian, Wu, LiLi
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2022
Materias:
Chemistry
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9561093/
https://www.ncbi.nlm.nih.gov/pubmed/36247664
http://dx.doi.org/10.3389/fchem.2022.1020538
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author Zhang, Weiqi
Zhang, Wenchao
Yao, Jing
Lu, Huiqing
Zhang, Xitian
Wu, LiLi
author_facet Zhang, Weiqi
Zhang, Wenchao
Yao, Jing
Lu, Huiqing
Zhang, Xitian
Wu, LiLi
author_sort Zhang, Weiqi
collection PubMed
description Abstract: A mixed-dimensional V(2)CT(x)/Ti(3)C(2)T(x) composite interlayer was successfully prepared to tackle severe polysulfide (LiPS) shuttling and sluggish sulfur redox kinetics for high-performance lithium–sulfur batteries. In the unique nanoarchitecture, two-dimensional Ti(3)C(2)T(x) nanosheets served as a stable skeleton with superb electronic conductivity, good mechanical strength, and high polysulfide adsorption, whereas one-dimensional V(2)CT(x) nanorods played a crucial role in chemisorbing LiPSs and catalyzing the conversion of LiPSs due to their high polarity and electrocatalysis. With the synergistic effect of V(2)CT(x) and Ti(3)C(2)T(x) composite nanostructures, the cells with the mixed-dimensional V(2)CT(x)/Ti(3)C(2)T(x) composite interlayer showed an impressive long-term cycling stability and small capacity decay rate of 0.062% per cycle over 600 cycles at 1 C and exhibited an outstanding rate capability of 935.3 mAh·g(−1) at 2 C.
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spelling pubmed-95610932022-10-15 Mixed-dimensional V(2)CT(x)/Ti(3)C(2)T(x) composite interlayer to boost electrochemical performance of Li-S batteries Zhang, Weiqi Zhang, Wenchao Yao, Jing Lu, Huiqing Zhang, Xitian Wu, LiLi Front Chem Chemistry Abstract: A mixed-dimensional V(2)CT(x)/Ti(3)C(2)T(x) composite interlayer was successfully prepared to tackle severe polysulfide (LiPS) shuttling and sluggish sulfur redox kinetics for high-performance lithium–sulfur batteries. In the unique nanoarchitecture, two-dimensional Ti(3)C(2)T(x) nanosheets served as a stable skeleton with superb electronic conductivity, good mechanical strength, and high polysulfide adsorption, whereas one-dimensional V(2)CT(x) nanorods played a crucial role in chemisorbing LiPSs and catalyzing the conversion of LiPSs due to their high polarity and electrocatalysis. With the synergistic effect of V(2)CT(x) and Ti(3)C(2)T(x) composite nanostructures, the cells with the mixed-dimensional V(2)CT(x)/Ti(3)C(2)T(x) composite interlayer showed an impressive long-term cycling stability and small capacity decay rate of 0.062% per cycle over 600 cycles at 1 C and exhibited an outstanding rate capability of 935.3 mAh·g(−1) at 2 C. Frontiers Media S.A. 2022-09-30 /pmc/articles/PMC9561093/ /pubmed/36247664 http://dx.doi.org/10.3389/fchem.2022.1020538 Text en Copyright © 2022 Zhang, Zhang, Yao, Lu, Zhang and Wu. https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Chemistry
Zhang, Weiqi
Zhang, Wenchao
Yao, Jing
Lu, Huiqing
Zhang, Xitian
Wu, LiLi
Mixed-dimensional V(2)CT(x)/Ti(3)C(2)T(x) composite interlayer to boost electrochemical performance of Li-S batteries
title Mixed-dimensional V(2)CT(x)/Ti(3)C(2)T(x) composite interlayer to boost electrochemical performance of Li-S batteries
title_full Mixed-dimensional V(2)CT(x)/Ti(3)C(2)T(x) composite interlayer to boost electrochemical performance of Li-S batteries
title_fullStr Mixed-dimensional V(2)CT(x)/Ti(3)C(2)T(x) composite interlayer to boost electrochemical performance of Li-S batteries
title_full_unstemmed Mixed-dimensional V(2)CT(x)/Ti(3)C(2)T(x) composite interlayer to boost electrochemical performance of Li-S batteries
title_short Mixed-dimensional V(2)CT(x)/Ti(3)C(2)T(x) composite interlayer to boost electrochemical performance of Li-S batteries
title_sort mixed-dimensional v(2)ct(x)/ti(3)c(2)t(x) composite interlayer to boost electrochemical performance of li-s batteries
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9561093/
https://www.ncbi.nlm.nih.gov/pubmed/36247664
http://dx.doi.org/10.3389/fchem.2022.1020538
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