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Lattice doping regulated interfacial reactions in cathode for enhanced cycling stability

Interfacial reactions between electrode and electrolyte are critical, either beneficial or detrimental, for the performance of rechargeable batteries. The general approaches of controlling interfacial reactions are either applying a coating layer on cathode or modifying the electrolyte chemistry. He...

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Detalles Bibliográficos
Autores principales: Zou, Lianfeng, Li, Jianyu, Liu, Zhenyu, Wang, Guofeng, Manthiram, Arumugam, Wang, Chongmin
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6673690/
https://www.ncbi.nlm.nih.gov/pubmed/31371730
http://dx.doi.org/10.1038/s41467-019-11299-2
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author Zou, Lianfeng
Li, Jianyu
Liu, Zhenyu
Wang, Guofeng
Manthiram, Arumugam
Wang, Chongmin
author_facet Zou, Lianfeng
Li, Jianyu
Liu, Zhenyu
Wang, Guofeng
Manthiram, Arumugam
Wang, Chongmin
author_sort Zou, Lianfeng
collection PubMed
description Interfacial reactions between electrode and electrolyte are critical, either beneficial or detrimental, for the performance of rechargeable batteries. The general approaches of controlling interfacial reactions are either applying a coating layer on cathode or modifying the electrolyte chemistry. Here we demonstrate an approach of modification of interfacial reactions through dilute lattice doping for enhanced battery properties. Using atomic level imaging, spectroscopic analysis and density functional theory calculation, we reveal aluminum dopants in lithium nickel cobalt aluminum oxide are partially dissolved in the bulk lattice with a tendency of enrichment near the primary particle surface and partially exist as aluminum oxide nano-islands that are epitaxially dressed on the primary particle surface. The aluminum concentrated surface lowers transition metal redox energy level and consequently promotes the formation of a stable cathode-electrolyte interphase. The present observations demonstrate a general principle as how the trace dopants modify the solid-liquid interfacial reactions for enhanced performance.
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spelling pubmed-66736902019-08-02 Lattice doping regulated interfacial reactions in cathode for enhanced cycling stability Zou, Lianfeng Li, Jianyu Liu, Zhenyu Wang, Guofeng Manthiram, Arumugam Wang, Chongmin Nat Commun Article Interfacial reactions between electrode and electrolyte are critical, either beneficial or detrimental, for the performance of rechargeable batteries. The general approaches of controlling interfacial reactions are either applying a coating layer on cathode or modifying the electrolyte chemistry. Here we demonstrate an approach of modification of interfacial reactions through dilute lattice doping for enhanced battery properties. Using atomic level imaging, spectroscopic analysis and density functional theory calculation, we reveal aluminum dopants in lithium nickel cobalt aluminum oxide are partially dissolved in the bulk lattice with a tendency of enrichment near the primary particle surface and partially exist as aluminum oxide nano-islands that are epitaxially dressed on the primary particle surface. The aluminum concentrated surface lowers transition metal redox energy level and consequently promotes the formation of a stable cathode-electrolyte interphase. The present observations demonstrate a general principle as how the trace dopants modify the solid-liquid interfacial reactions for enhanced performance. Nature Publishing Group UK 2019-08-01 /pmc/articles/PMC6673690/ /pubmed/31371730 http://dx.doi.org/10.1038/s41467-019-11299-2 Text en © This is a U.S. Government work and not under copyright protection in the US; foreign copyright protection may apply 2019 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Zou, Lianfeng
Li, Jianyu
Liu, Zhenyu
Wang, Guofeng
Manthiram, Arumugam
Wang, Chongmin
Lattice doping regulated interfacial reactions in cathode for enhanced cycling stability
title Lattice doping regulated interfacial reactions in cathode for enhanced cycling stability
title_full Lattice doping regulated interfacial reactions in cathode for enhanced cycling stability
title_fullStr Lattice doping regulated interfacial reactions in cathode for enhanced cycling stability
title_full_unstemmed Lattice doping regulated interfacial reactions in cathode for enhanced cycling stability
title_short Lattice doping regulated interfacial reactions in cathode for enhanced cycling stability
title_sort lattice doping regulated interfacial reactions in cathode for enhanced cycling stability
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6673690/
https://www.ncbi.nlm.nih.gov/pubmed/31371730
http://dx.doi.org/10.1038/s41467-019-11299-2
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