Surface nitridation of Li4Ti5O12 by thermal decomposition of urea to improve quick charging capability of lithium ion batteries

Abstract As the application of lithium-ion batteries in electric vehicles increases, the demand for improved charging characteristics of batteries is also increasing. Lithium titanium oxide (Li4Ti5O12, LTO) is a negative electrode material with high rate characteristics, but further improvement in r...

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Autores principales:	Jihyun Jang, Tae Hun Kim, Ji Heon Ryu
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/7f1f83779de14f7a9ab362b4a7839aa1
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spelling	oai:doaj.org-article:7f1f83779de14f7a9ab362b4a7839aa12021-12-02T16:06:07ZSurface nitridation of Li4Ti5O12 by thermal decomposition of urea to improve quick charging capability of lithium ion batteries10.1038/s41598-021-92550-z2045-2322https://doaj.org/article/7f1f83779de14f7a9ab362b4a7839aa12021-06-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-92550-zhttps://doaj.org/toc/2045-2322Abstract As the application of lithium-ion batteries in electric vehicles increases, the demand for improved charging characteristics of batteries is also increasing. Lithium titanium oxide (Li4Ti5O12, LTO) is a negative electrode material with high rate characteristics, but further improvement in rate characteristics is needed for achieving the quick-charging performance required by electric vehicle markets. In this study, the surface of LTO was coated with a titanium nitride (TiN) layer using urea and an autogenic reactor, and electrochemical performance was improved (initial Coulombic efficiency and the rate capability were improved from 95.6 to 4.4% for pristine LTO to 98.5% and 53.3% for urea-assisted TiN-coated LTO, respectively. We developed a process for commercial production of surface coatings using eco-friendly material to further enhance the charging performance of LTO owing to high electronic conductivity of TiN.Jihyun JangTae Hun KimJi Heon RyuNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-7 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Jihyun Jang Tae Hun Kim Ji Heon Ryu Surface nitridation of Li4Ti5O12 by thermal decomposition of urea to improve quick charging capability of lithium ion batteries
description	Abstract As the application of lithium-ion batteries in electric vehicles increases, the demand for improved charging characteristics of batteries is also increasing. Lithium titanium oxide (Li4Ti5O12, LTO) is a negative electrode material with high rate characteristics, but further improvement in rate characteristics is needed for achieving the quick-charging performance required by electric vehicle markets. In this study, the surface of LTO was coated with a titanium nitride (TiN) layer using urea and an autogenic reactor, and electrochemical performance was improved (initial Coulombic efficiency and the rate capability were improved from 95.6 to 4.4% for pristine LTO to 98.5% and 53.3% for urea-assisted TiN-coated LTO, respectively. We developed a process for commercial production of surface coatings using eco-friendly material to further enhance the charging performance of LTO owing to high electronic conductivity of TiN.
format	article
author	Jihyun Jang Tae Hun Kim Ji Heon Ryu
author_facet	Jihyun Jang Tae Hun Kim Ji Heon Ryu
author_sort	Jihyun Jang
title	Surface nitridation of Li4Ti5O12 by thermal decomposition of urea to improve quick charging capability of lithium ion batteries
title_short	Surface nitridation of Li4Ti5O12 by thermal decomposition of urea to improve quick charging capability of lithium ion batteries
title_full	Surface nitridation of Li4Ti5O12 by thermal decomposition of urea to improve quick charging capability of lithium ion batteries
title_fullStr	Surface nitridation of Li4Ti5O12 by thermal decomposition of urea to improve quick charging capability of lithium ion batteries
title_full_unstemmed	Surface nitridation of Li4Ti5O12 by thermal decomposition of urea to improve quick charging capability of lithium ion batteries
title_sort	surface nitridation of li4ti5o12 by thermal decomposition of urea to improve quick charging capability of lithium ion batteries
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/7f1f83779de14f7a9ab362b4a7839aa1
work_keys_str_mv	AT jihyunjang surfacenitridationofli4ti5o12bythermaldecompositionofureatoimprovequickchargingcapabilityoflithiumionbatteries AT taehunkim surfacenitridationofli4ti5o12bythermaldecompositionofureatoimprovequickchargingcapabilityoflithiumionbatteries AT jiheonryu surfacenitridationofli4ti5o12bythermaldecompositionofureatoimprovequickchargingcapabilityoflithiumionbatteries
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Surface nitridation of Li4Ti5O12 by thermal decomposition of urea to improve quick charging capability of lithium ion batteries

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