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Controllable TiO(2) coating on the nickel-rich layered cathode through TiCl(4) hydrolysis via fluidized bed chemical vapor deposition

Surface coating of metal oxides is an effective approach for enhancing the capacity retention of a nickel-rich layered cathode. Current conventional coating techniques including wet chemistry methods and atomic layer deposition are restricted by the difficulty in perfectly balancing the coating qual...

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Detalles Bibliográficos
Autores principales: Li, Xinxin, Shi, Hebang, Wang, Bo, Li, Na, Zhang, Liqiang, Lv, Pengpeng
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9064674/
https://www.ncbi.nlm.nih.gov/pubmed/35520565
http://dx.doi.org/10.1039/c9ra03087e
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author Li, Xinxin
Shi, Hebang
Wang, Bo
Li, Na
Zhang, Liqiang
Lv, Pengpeng
author_facet Li, Xinxin
Shi, Hebang
Wang, Bo
Li, Na
Zhang, Liqiang
Lv, Pengpeng
author_sort Li, Xinxin
collection PubMed
description Surface coating of metal oxides is an effective approach for enhancing the capacity retention of a nickel-rich layered cathode. Current conventional coating techniques including wet chemistry methods and atomic layer deposition are restricted by the difficulty in perfectly balancing the coating quality and scale-up production. Herein, a highly efficient TiO(2) coating route through fluidized bed chemical vapor deposition (FBCVD) was proposed to enable scalable and high yield synthesis of a TiO(2) coated nickel-rich cathode. The technological parameters including coating time and TiCl(4) supply rate were systematically studied, and thus a utility TiO(2) deposition rate model was deduced, promoting the controllable TiO(2) coating. The FBCVD TiO(2) deposition mechanism was fundamentally analyzed based on the TiCl(4) hydrolysis principle. The amorphous and uniform TiO(2) coating layer is compactly attached on the particle surface, forming a classical core–shell structure. Electrochemical evaluations reveal that the TiO(2) coating by FBCVD route indeed improves the capacity retention from 89.08% to 95.89% after 50 cycles.
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spelling pubmed-90646742022-05-04 Controllable TiO(2) coating on the nickel-rich layered cathode through TiCl(4) hydrolysis via fluidized bed chemical vapor deposition Li, Xinxin Shi, Hebang Wang, Bo Li, Na Zhang, Liqiang Lv, Pengpeng RSC Adv Chemistry Surface coating of metal oxides is an effective approach for enhancing the capacity retention of a nickel-rich layered cathode. Current conventional coating techniques including wet chemistry methods and atomic layer deposition are restricted by the difficulty in perfectly balancing the coating quality and scale-up production. Herein, a highly efficient TiO(2) coating route through fluidized bed chemical vapor deposition (FBCVD) was proposed to enable scalable and high yield synthesis of a TiO(2) coated nickel-rich cathode. The technological parameters including coating time and TiCl(4) supply rate were systematically studied, and thus a utility TiO(2) deposition rate model was deduced, promoting the controllable TiO(2) coating. The FBCVD TiO(2) deposition mechanism was fundamentally analyzed based on the TiCl(4) hydrolysis principle. The amorphous and uniform TiO(2) coating layer is compactly attached on the particle surface, forming a classical core–shell structure. Electrochemical evaluations reveal that the TiO(2) coating by FBCVD route indeed improves the capacity retention from 89.08% to 95.89% after 50 cycles. The Royal Society of Chemistry 2019-06-07 /pmc/articles/PMC9064674/ /pubmed/35520565 http://dx.doi.org/10.1039/c9ra03087e Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/
spellingShingle Chemistry
Li, Xinxin
Shi, Hebang
Wang, Bo
Li, Na
Zhang, Liqiang
Lv, Pengpeng
Controllable TiO(2) coating on the nickel-rich layered cathode through TiCl(4) hydrolysis via fluidized bed chemical vapor deposition
title Controllable TiO(2) coating on the nickel-rich layered cathode through TiCl(4) hydrolysis via fluidized bed chemical vapor deposition
title_full Controllable TiO(2) coating on the nickel-rich layered cathode through TiCl(4) hydrolysis via fluidized bed chemical vapor deposition
title_fullStr Controllable TiO(2) coating on the nickel-rich layered cathode through TiCl(4) hydrolysis via fluidized bed chemical vapor deposition
title_full_unstemmed Controllable TiO(2) coating on the nickel-rich layered cathode through TiCl(4) hydrolysis via fluidized bed chemical vapor deposition
title_short Controllable TiO(2) coating on the nickel-rich layered cathode through TiCl(4) hydrolysis via fluidized bed chemical vapor deposition
title_sort controllable tio(2) coating on the nickel-rich layered cathode through ticl(4) hydrolysis via fluidized bed chemical vapor deposition
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9064674/
https://www.ncbi.nlm.nih.gov/pubmed/35520565
http://dx.doi.org/10.1039/c9ra03087e
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