Cargando…
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...
Autores principales: | , , , , , |
---|---|
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 |
_version_ | 1783372437975465984 |
---|---|
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. |
format | Online Article Text |
id | pubmed-6247063 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | John Wiley and Sons Inc. |
record_format | MEDLINE/PubMed |
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 |
work_keys_str_mv | AT taohongwei tis2asanadvancedconversionelectrodeforsodiumionbatterieswithultrahighcapacityandlongcyclelife AT zhoumin tis2asanadvancedconversionelectrodeforsodiumionbatterieswithultrahighcapacityandlongcyclelife AT wangruxing tis2asanadvancedconversionelectrodeforsodiumionbatterieswithultrahighcapacityandlongcyclelife AT wangkangli tis2asanadvancedconversionelectrodeforsodiumionbatterieswithultrahighcapacityandlongcyclelife AT chengshijie tis2asanadvancedconversionelectrodeforsodiumionbatterieswithultrahighcapacityandlongcyclelife AT jiangkai tis2asanadvancedconversionelectrodeforsodiumionbatterieswithultrahighcapacityandlongcyclelife |