Uniformly Dispersed Sb-Nanodot Constructed by In Situ Confined Polymerization of Ionic Liquids for High-Performance Potassium-Ion Batteries

Antimony (Sb) is a potential candidate anode for potassium-ion batteries (PIBs) owing to its high theoretical capacity. However; in the process of potassium alloying reaction; the huge volume expansion (about 407%) leads to pulverization of active substance as well as loss of electrical contact resu...

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Autores principales: Zhang, Cunliang, Chen, Zhengyuan, Zhang, Haojie, Liu, Yanmei, Wei, Wei, Zhou, Yanli, Xu, Maotian
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Communication
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10343779/
https://www.ncbi.nlm.nih.gov/pubmed/37446874
http://dx.doi.org/10.3390/molecules28135212
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author Zhang, Cunliang
Chen, Zhengyuan
Zhang, Haojie
Liu, Yanmei
Wei, Wei
Zhou, Yanli
Xu, Maotian
author_facet Zhang, Cunliang
Chen, Zhengyuan
Zhang, Haojie
Liu, Yanmei
Wei, Wei
Zhou, Yanli
Xu, Maotian
author_sort Zhang, Cunliang
collection PubMed
description Antimony (Sb) is a potential candidate anode for potassium-ion batteries (PIBs) owing to its high theoretical capacity. However; in the process of potassium alloying reaction; the huge volume expansion (about 407%) leads to pulverization of active substance as well as loss of electrical contact resulting in rapidly declining capacity. Herein; uniformly dispersed Sb-Nanodot in carbon frameworks (Sb-ND@C) were constructed by in situ confined polymerization of ionic liquids. Attributed to the uniformly dispersed Sb-ND and confinement effect of carbon frameworks; as anode for PIBs; Sb-ND@C delivered a superior rate capability (320.1 mA h g(−1) at 5 A g(−1)) and an outstanding cycling stability (486 mA h g(−1) after 1000 cycles; achieving 89.8% capacity retention). This work offers a facile route to prepare highly dispersed metal-Nanodot via the in situ polymerization of ionic liquid for high-performance metal-ion batteries
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spelling pubmed-103437792023-07-14 Uniformly Dispersed Sb-Nanodot Constructed by In Situ Confined Polymerization of Ionic Liquids for High-Performance Potassium-Ion Batteries Zhang, Cunliang Chen, Zhengyuan Zhang, Haojie Liu, Yanmei Wei, Wei Zhou, Yanli Xu, Maotian Molecules Communication Antimony (Sb) is a potential candidate anode for potassium-ion batteries (PIBs) owing to its high theoretical capacity. However; in the process of potassium alloying reaction; the huge volume expansion (about 407%) leads to pulverization of active substance as well as loss of electrical contact resulting in rapidly declining capacity. Herein; uniformly dispersed Sb-Nanodot in carbon frameworks (Sb-ND@C) were constructed by in situ confined polymerization of ionic liquids. Attributed to the uniformly dispersed Sb-ND and confinement effect of carbon frameworks; as anode for PIBs; Sb-ND@C delivered a superior rate capability (320.1 mA h g(−1) at 5 A g(−1)) and an outstanding cycling stability (486 mA h g(−1) after 1000 cycles; achieving 89.8% capacity retention). This work offers a facile route to prepare highly dispersed metal-Nanodot via the in situ polymerization of ionic liquid for high-performance metal-ion batteries MDPI 2023-07-05 /pmc/articles/PMC10343779/ /pubmed/37446874 http://dx.doi.org/10.3390/molecules28135212 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/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 (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Communication
Zhang, Cunliang
Chen, Zhengyuan
Zhang, Haojie
Liu, Yanmei
Wei, Wei
Zhou, Yanli
Xu, Maotian
Uniformly Dispersed Sb-Nanodot Constructed by In Situ Confined Polymerization of Ionic Liquids for High-Performance Potassium-Ion Batteries
title Uniformly Dispersed Sb-Nanodot Constructed by In Situ Confined Polymerization of Ionic Liquids for High-Performance Potassium-Ion Batteries
title_full Uniformly Dispersed Sb-Nanodot Constructed by In Situ Confined Polymerization of Ionic Liquids for High-Performance Potassium-Ion Batteries
title_fullStr Uniformly Dispersed Sb-Nanodot Constructed by In Situ Confined Polymerization of Ionic Liquids for High-Performance Potassium-Ion Batteries
title_full_unstemmed Uniformly Dispersed Sb-Nanodot Constructed by In Situ Confined Polymerization of Ionic Liquids for High-Performance Potassium-Ion Batteries
title_short Uniformly Dispersed Sb-Nanodot Constructed by In Situ Confined Polymerization of Ionic Liquids for High-Performance Potassium-Ion Batteries
title_sort uniformly dispersed sb-nanodot constructed by in situ confined polymerization of ionic liquids for high-performance potassium-ion batteries
topic Communication
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10343779/
https://www.ncbi.nlm.nih.gov/pubmed/37446874
http://dx.doi.org/10.3390/molecules28135212
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