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Hidden structural and chemical order controls lithium transport in cation-disordered oxides for rechargeable batteries
Structure plays a vital role in determining materials properties. In lithium ion cathode materials, the crystal structure defines the dimensionality and connectivity of interstitial sites, thus determining lithium ion diffusion kinetics. In most conventional cathode materials that are well-ordered,...
Autores principales: | , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6363792/ https://www.ncbi.nlm.nih.gov/pubmed/30723202 http://dx.doi.org/10.1038/s41467-019-08490-w |
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author | Ji, Huiwen Urban, Alexander Kitchaev, Daniil A. Kwon, Deok-Hwang Artrith, Nongnuch Ophus, Colin Huang, Wenxuan Cai, Zijian Shi, Tan Kim, Jae Chul Kim, Haegyeom Ceder, Gerbrand |
author_facet | Ji, Huiwen Urban, Alexander Kitchaev, Daniil A. Kwon, Deok-Hwang Artrith, Nongnuch Ophus, Colin Huang, Wenxuan Cai, Zijian Shi, Tan Kim, Jae Chul Kim, Haegyeom Ceder, Gerbrand |
author_sort | Ji, Huiwen |
collection | PubMed |
description | Structure plays a vital role in determining materials properties. In lithium ion cathode materials, the crystal structure defines the dimensionality and connectivity of interstitial sites, thus determining lithium ion diffusion kinetics. In most conventional cathode materials that are well-ordered, the average structure as seen in diffraction dictates the lithium ion diffusion pathways. Here, we show that this is not the case in a class of recently discovered high-capacity lithium-excess rocksalts. An average structure picture is no longer satisfactory to understand the performance of such disordered materials. Cation short-range order, hidden in diffraction, is not only ubiquitous in these long-range disordered materials, but fully controls the local and macroscopic environments for lithium ion transport. Our discovery identifies a crucial property that has previously been overlooked and provides guidelines for designing and engineering cation-disordered cathode materials. |
format | Online Article Text |
id | pubmed-6363792 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-63637922019-02-07 Hidden structural and chemical order controls lithium transport in cation-disordered oxides for rechargeable batteries Ji, Huiwen Urban, Alexander Kitchaev, Daniil A. Kwon, Deok-Hwang Artrith, Nongnuch Ophus, Colin Huang, Wenxuan Cai, Zijian Shi, Tan Kim, Jae Chul Kim, Haegyeom Ceder, Gerbrand Nat Commun Article Structure plays a vital role in determining materials properties. In lithium ion cathode materials, the crystal structure defines the dimensionality and connectivity of interstitial sites, thus determining lithium ion diffusion kinetics. In most conventional cathode materials that are well-ordered, the average structure as seen in diffraction dictates the lithium ion diffusion pathways. Here, we show that this is not the case in a class of recently discovered high-capacity lithium-excess rocksalts. An average structure picture is no longer satisfactory to understand the performance of such disordered materials. Cation short-range order, hidden in diffraction, is not only ubiquitous in these long-range disordered materials, but fully controls the local and macroscopic environments for lithium ion transport. Our discovery identifies a crucial property that has previously been overlooked and provides guidelines for designing and engineering cation-disordered cathode materials. Nature Publishing Group UK 2019-02-05 /pmc/articles/PMC6363792/ /pubmed/30723202 http://dx.doi.org/10.1038/s41467-019-08490-w Text en © The Author(s) 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 Ji, Huiwen Urban, Alexander Kitchaev, Daniil A. Kwon, Deok-Hwang Artrith, Nongnuch Ophus, Colin Huang, Wenxuan Cai, Zijian Shi, Tan Kim, Jae Chul Kim, Haegyeom Ceder, Gerbrand Hidden structural and chemical order controls lithium transport in cation-disordered oxides for rechargeable batteries |
title | Hidden structural and chemical order controls lithium transport in cation-disordered oxides for rechargeable batteries |
title_full | Hidden structural and chemical order controls lithium transport in cation-disordered oxides for rechargeable batteries |
title_fullStr | Hidden structural and chemical order controls lithium transport in cation-disordered oxides for rechargeable batteries |
title_full_unstemmed | Hidden structural and chemical order controls lithium transport in cation-disordered oxides for rechargeable batteries |
title_short | Hidden structural and chemical order controls lithium transport in cation-disordered oxides for rechargeable batteries |
title_sort | hidden structural and chemical order controls lithium transport in cation-disordered oxides for rechargeable batteries |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6363792/ https://www.ncbi.nlm.nih.gov/pubmed/30723202 http://dx.doi.org/10.1038/s41467-019-08490-w |
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