Cargando…

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,...

Descripción completa

Detalles Bibliográficos
Autores principales: 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
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2019
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
_version_ 1783393178578059264
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
work_keys_str_mv AT jihuiwen hiddenstructuralandchemicalordercontrolslithiumtransportincationdisorderedoxidesforrechargeablebatteries
AT urbanalexander hiddenstructuralandchemicalordercontrolslithiumtransportincationdisorderedoxidesforrechargeablebatteries
AT kitchaevdaniila hiddenstructuralandchemicalordercontrolslithiumtransportincationdisorderedoxidesforrechargeablebatteries
AT kwondeokhwang hiddenstructuralandchemicalordercontrolslithiumtransportincationdisorderedoxidesforrechargeablebatteries
AT artrithnongnuch hiddenstructuralandchemicalordercontrolslithiumtransportincationdisorderedoxidesforrechargeablebatteries
AT ophuscolin hiddenstructuralandchemicalordercontrolslithiumtransportincationdisorderedoxidesforrechargeablebatteries
AT huangwenxuan hiddenstructuralandchemicalordercontrolslithiumtransportincationdisorderedoxidesforrechargeablebatteries
AT caizijian hiddenstructuralandchemicalordercontrolslithiumtransportincationdisorderedoxidesforrechargeablebatteries
AT shitan hiddenstructuralandchemicalordercontrolslithiumtransportincationdisorderedoxidesforrechargeablebatteries
AT kimjaechul hiddenstructuralandchemicalordercontrolslithiumtransportincationdisorderedoxidesforrechargeablebatteries
AT kimhaegyeom hiddenstructuralandchemicalordercontrolslithiumtransportincationdisorderedoxidesforrechargeablebatteries
AT cedergerbrand hiddenstructuralandchemicalordercontrolslithiumtransportincationdisorderedoxidesforrechargeablebatteries