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TiS(2) as an Advanced Conversion Electrode for Sodium‐Ion Batteries with Ultra‐High Capacity and Long‐Cycle Life

Titanium disulfide (TiS(2)) is investigated as an advanced conversion electrode for sodium (Na)‐ion batteries (NIB) in an ether‐based electrolyte (NaPF(6)/glyme (DME)). The as‐prepared TiS(2) demonstrates a high reversible capacity of 1040 mA h g(−1) at 0.2 A g(−1) with the capacity contribution of...

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Autores principales: Tao, Hongwei, Zhou, Min, Wang, Ruxing, Wang, Kangli, Cheng, Shijie, Jiang, Kai
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6247063/
https://www.ncbi.nlm.nih.gov/pubmed/30479930
http://dx.doi.org/10.1002/advs.201801021
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author Tao, Hongwei
Zhou, Min
Wang, Ruxing
Wang, Kangli
Cheng, Shijie
Jiang, Kai
author_facet Tao, Hongwei
Zhou, Min
Wang, Ruxing
Wang, Kangli
Cheng, Shijie
Jiang, Kai
author_sort Tao, Hongwei
collection PubMed
description Titanium disulfide (TiS(2)) is investigated as an advanced conversion electrode for sodium (Na)‐ion batteries (NIB) in an ether‐based electrolyte (NaPF(6)/glyme (DME)). The as‐prepared TiS(2) demonstrates a high reversible capacity of 1040 mA h g(−1) at 0.2 A g(−1) with the capacity contribution of 521 mA h g(−1) in the voltage region below 1.0 V (vs Na/Na(+)), remarkable initial coulombic efficiency of 95.9% and superior rate capability of 621 mA h g(−1) at 40 A g(−1). The high conductivity of the Ti‐based compounds and nanosized particles generated by chemical conversion reactions could minimize the entropic barrier for the reversible conversion, resulting in high reversibility and ultrafast charge/discharge ability of the electrode. Moreover, with its strong ability to adsorb soluble polysulfide intermediates, the as‐prepared TiS(2) electrode exhibits superior cycling stability over 9000 cycles, serving as a stable and ultra‐high capacity conversion electrode for NIBs.
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spelling pubmed-62470632018-11-26 TiS(2) as an Advanced Conversion Electrode for Sodium‐Ion Batteries with Ultra‐High Capacity and Long‐Cycle Life Tao, Hongwei Zhou, Min Wang, Ruxing Wang, Kangli Cheng, Shijie Jiang, Kai Adv Sci (Weinh) Full Papers Titanium disulfide (TiS(2)) is investigated as an advanced conversion electrode for sodium (Na)‐ion batteries (NIB) in an ether‐based electrolyte (NaPF(6)/glyme (DME)). The as‐prepared TiS(2) demonstrates a high reversible capacity of 1040 mA h g(−1) at 0.2 A g(−1) with the capacity contribution of 521 mA h g(−1) in the voltage region below 1.0 V (vs Na/Na(+)), remarkable initial coulombic efficiency of 95.9% and superior rate capability of 621 mA h g(−1) at 40 A g(−1). The high conductivity of the Ti‐based compounds and nanosized particles generated by chemical conversion reactions could minimize the entropic barrier for the reversible conversion, resulting in high reversibility and ultrafast charge/discharge ability of the electrode. Moreover, with its strong ability to adsorb soluble polysulfide intermediates, the as‐prepared TiS(2) electrode exhibits superior cycling stability over 9000 cycles, serving as a stable and ultra‐high capacity conversion electrode for NIBs. John Wiley and Sons Inc. 2018-09-15 /pmc/articles/PMC6247063/ /pubmed/30479930 http://dx.doi.org/10.1002/advs.201801021 Text en © 2018 The Authors. Published by WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
spellingShingle Full Papers
Tao, Hongwei
Zhou, Min
Wang, Ruxing
Wang, Kangli
Cheng, Shijie
Jiang, Kai
TiS(2) as an Advanced Conversion Electrode for Sodium‐Ion Batteries with Ultra‐High Capacity and Long‐Cycle Life
title TiS(2) as an Advanced Conversion Electrode for Sodium‐Ion Batteries with Ultra‐High Capacity and Long‐Cycle Life
title_full TiS(2) as an Advanced Conversion Electrode for Sodium‐Ion Batteries with Ultra‐High Capacity and Long‐Cycle Life
title_fullStr TiS(2) as an Advanced Conversion Electrode for Sodium‐Ion Batteries with Ultra‐High Capacity and Long‐Cycle Life
title_full_unstemmed TiS(2) as an Advanced Conversion Electrode for Sodium‐Ion Batteries with Ultra‐High Capacity and Long‐Cycle Life
title_short TiS(2) as an Advanced Conversion Electrode for Sodium‐Ion Batteries with Ultra‐High Capacity and Long‐Cycle Life
title_sort tis(2) as an advanced conversion electrode for sodium‐ion batteries with ultra‐high capacity and long‐cycle life
topic Full Papers
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6247063/
https://www.ncbi.nlm.nih.gov/pubmed/30479930
http://dx.doi.org/10.1002/advs.201801021
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