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Structural insights into the formation and voltage degradation of lithium- and manganese-rich layered oxides
One major challenge in the field of lithium-ion batteries is to understand the degradation mechanism of high-energy lithium- and manganese-rich layered cathode materials. Although they can deliver 30 % excess capacity compared with today’s commercially- used cathodes, the so-called voltage decay has...
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/PMC6879514/ https://www.ncbi.nlm.nih.gov/pubmed/31772159 http://dx.doi.org/10.1038/s41467-019-13240-z |
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author | Hua, Weibo Wang, Suning Knapp, Michael Leake, Steven J. Senyshyn, Anatoliy Richter, Carsten Yavuz, Murat Binder, Joachim R. Grey, Clare P. Ehrenberg, Helmut Indris, Sylvio Schwarz, Björn |
author_facet | Hua, Weibo Wang, Suning Knapp, Michael Leake, Steven J. Senyshyn, Anatoliy Richter, Carsten Yavuz, Murat Binder, Joachim R. Grey, Clare P. Ehrenberg, Helmut Indris, Sylvio Schwarz, Björn |
author_sort | Hua, Weibo |
collection | PubMed |
description | One major challenge in the field of lithium-ion batteries is to understand the degradation mechanism of high-energy lithium- and manganese-rich layered cathode materials. Although they can deliver 30 % excess capacity compared with today’s commercially- used cathodes, the so-called voltage decay has been restricting their practical application. In order to unravel the nature of this phenomenon, we have investigated systematically the structural and compositional dependence of manganese-rich lithium insertion compounds on the lithium content provided during synthesis. Structural, electronic and electrochemical characterizations of Li(x)Ni(0.2)Mn(0.6)O(y) with a wide range of lithium contents (0.00 ≤ x ≤ 1.52, 1.07 ≤ y < 2.4) and an analysis of the complexity in the synthesis pathways of monoclinic-layered Li[Li(0.2)Ni(0.2)Mn(0.6)]O(2) oxide provide insight into the underlying processes that cause voltage fading in these cathode materials, i.e. transformation of the lithium-rich layered phase to a lithium-poor spinel phase via an intermediate lithium-containing rock-salt phase with release of lithium/oxygen. |
format | Online Article Text |
id | pubmed-6879514 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-68795142019-11-29 Structural insights into the formation and voltage degradation of lithium- and manganese-rich layered oxides Hua, Weibo Wang, Suning Knapp, Michael Leake, Steven J. Senyshyn, Anatoliy Richter, Carsten Yavuz, Murat Binder, Joachim R. Grey, Clare P. Ehrenberg, Helmut Indris, Sylvio Schwarz, Björn Nat Commun Article One major challenge in the field of lithium-ion batteries is to understand the degradation mechanism of high-energy lithium- and manganese-rich layered cathode materials. Although they can deliver 30 % excess capacity compared with today’s commercially- used cathodes, the so-called voltage decay has been restricting their practical application. In order to unravel the nature of this phenomenon, we have investigated systematically the structural and compositional dependence of manganese-rich lithium insertion compounds on the lithium content provided during synthesis. Structural, electronic and electrochemical characterizations of Li(x)Ni(0.2)Mn(0.6)O(y) with a wide range of lithium contents (0.00 ≤ x ≤ 1.52, 1.07 ≤ y < 2.4) and an analysis of the complexity in the synthesis pathways of monoclinic-layered Li[Li(0.2)Ni(0.2)Mn(0.6)]O(2) oxide provide insight into the underlying processes that cause voltage fading in these cathode materials, i.e. transformation of the lithium-rich layered phase to a lithium-poor spinel phase via an intermediate lithium-containing rock-salt phase with release of lithium/oxygen. Nature Publishing Group UK 2019-11-26 /pmc/articles/PMC6879514/ /pubmed/31772159 http://dx.doi.org/10.1038/s41467-019-13240-z 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 Hua, Weibo Wang, Suning Knapp, Michael Leake, Steven J. Senyshyn, Anatoliy Richter, Carsten Yavuz, Murat Binder, Joachim R. Grey, Clare P. Ehrenberg, Helmut Indris, Sylvio Schwarz, Björn Structural insights into the formation and voltage degradation of lithium- and manganese-rich layered oxides |
title | Structural insights into the formation and voltage degradation of lithium- and manganese-rich layered oxides |
title_full | Structural insights into the formation and voltage degradation of lithium- and manganese-rich layered oxides |
title_fullStr | Structural insights into the formation and voltage degradation of lithium- and manganese-rich layered oxides |
title_full_unstemmed | Structural insights into the formation and voltage degradation of lithium- and manganese-rich layered oxides |
title_short | Structural insights into the formation and voltage degradation of lithium- and manganese-rich layered oxides |
title_sort | structural insights into the formation and voltage degradation of lithium- and manganese-rich layered oxides |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6879514/ https://www.ncbi.nlm.nih.gov/pubmed/31772159 http://dx.doi.org/10.1038/s41467-019-13240-z |
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