Soft X-ray Absorption Spectroscopic Investigation of Li(Ni0.8Co0.1Mn0.1)O2 Cathode Materials

Herein, we report the soft X-ray absorption spectroscopic investigation for Li(Ni0.8Co0.1Mn0.1)O2 cathode material during charging and discharging. These measurements were carried out at the Mn L<...

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Main Authors:	Jitendra Pal Singh, Jae Yeon Park, Keun Hwa Chae, Docheon Ahn, Sangsul Lee
Format:	Article
Language:	English
Published:	MDPI AG 2020-04-01
Series:	Nanomaterials
Subjects:	cathode materials orbital symmetry states metal–oxygen hybridization
Online Access:	https://www.mdpi.com/2079-4991/10/4/759

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spelling	doaj-e7f6edc637d0417ebbf99e35653574c62020-11-25T02:01:45ZengMDPI AGNanomaterials2079-49912020-04-011075975910.3390/nano10040759Soft X-ray Absorption Spectroscopic Investigation of Li(Ni<sub>0.8</sub>Co<sub>0.1</sub>Mn<sub>0.1</sub>)O<sub>2</sub> Cathode MaterialsJitendra Pal Singh0Jae Yeon Park1Keun Hwa Chae2Docheon Ahn3Sangsul Lee4Pohang Accelerator Laboratory, Pohang University of Science and Technology, Pohang 37673, KoreaRadiation Equipment Research Division, Korea Atomic Energy Research Institute, Jeongup 56212, KoreaAdvanced Analysis Center, Korea Institute of Science and Technology, Seoul 02792, KoreaPohang Accelerator Laboratory, Pohang University of Science and Technology, Pohang 37673, KoreaPohang Accelerator Laboratory, Pohang University of Science and Technology, Pohang 37673, KoreaHerein, we report the soft X-ray absorption spectroscopic investigation for Li(Ni<sub>0.8</sub>Co<sub>0.1</sub>Mn<sub>0.1</sub>)O<sub>2</sub> cathode material during charging and discharging. These measurements were carried out at the Mn <i>L</i>-, Co <i>L</i>-, and Ni <i>L</i>-edges during various stages of charging and discharging. Both the Mn and Co <i>L</i>-edge spectroscopic measurements reflect the invariance in the oxidation states of Mn and Co ions. The Ni <i>L</i>-edge measurements show the modification of the oxidation state of Ni ions during the charging and discharging process. These studies show that <i>e<sub>g</sub></i> states are affected dominantly in the case of Ni ions during the charging and discharging process. The O <i>K</i>-edge measurements reflect modulation of metal–oxygen hybridization as envisaged from the area-ratio variation of spectral features corresponding to <i>t<sub>2g</sub></i> and <i>e<sub>g</sub></i> states.https://www.mdpi.com/2079-4991/10/4/759cathode materialsorbital symmetry statesmetal–oxygen hybridization
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Jitendra Pal Singh Jae Yeon Park Keun Hwa Chae Docheon Ahn Sangsul Lee
spellingShingle	Jitendra Pal Singh Jae Yeon Park Keun Hwa Chae Docheon Ahn Sangsul Lee Soft X-ray Absorption Spectroscopic Investigation of Li(Ni<sub>0.8</sub>Co<sub>0.1</sub>Mn<sub>0.1</sub>)O<sub>2</sub> Cathode Materials Nanomaterials cathode materials orbital symmetry states metal–oxygen hybridization
author_facet	Jitendra Pal Singh Jae Yeon Park Keun Hwa Chae Docheon Ahn Sangsul Lee
author_sort	Jitendra Pal Singh
title	Soft X-ray Absorption Spectroscopic Investigation of Li(Ni<sub>0.8</sub>Co<sub>0.1</sub>Mn<sub>0.1</sub>)O<sub>2</sub> Cathode Materials
title_short	Soft X-ray Absorption Spectroscopic Investigation of Li(Ni<sub>0.8</sub>Co<sub>0.1</sub>Mn<sub>0.1</sub>)O<sub>2</sub> Cathode Materials
title_full	Soft X-ray Absorption Spectroscopic Investigation of Li(Ni<sub>0.8</sub>Co<sub>0.1</sub>Mn<sub>0.1</sub>)O<sub>2</sub> Cathode Materials
title_fullStr	Soft X-ray Absorption Spectroscopic Investigation of Li(Ni<sub>0.8</sub>Co<sub>0.1</sub>Mn<sub>0.1</sub>)O<sub>2</sub> Cathode Materials
title_full_unstemmed	Soft X-ray Absorption Spectroscopic Investigation of Li(Ni<sub>0.8</sub>Co<sub>0.1</sub>Mn<sub>0.1</sub>)O<sub>2</sub> Cathode Materials
title_sort	soft x-ray absorption spectroscopic investigation of li(ni<sub>0.8</sub>co<sub>0.1</sub>mn<sub>0.1</sub>)o<sub>2</sub> cathode materials
publisher	MDPI AG
series	Nanomaterials
issn	2079-4991
publishDate	2020-04-01
description	Herein, we report the soft X-ray absorption spectroscopic investigation for Li(Ni<sub>0.8</sub>Co<sub>0.1</sub>Mn<sub>0.1</sub>)O<sub>2</sub> cathode material during charging and discharging. These measurements were carried out at the Mn <i>L</i>-, Co <i>L</i>-, and Ni <i>L</i>-edges during various stages of charging and discharging. Both the Mn and Co <i>L</i>-edge spectroscopic measurements reflect the invariance in the oxidation states of Mn and Co ions. The Ni <i>L</i>-edge measurements show the modification of the oxidation state of Ni ions during the charging and discharging process. These studies show that <i>e<sub>g</sub></i> states are affected dominantly in the case of Ni ions during the charging and discharging process. The O <i>K</i>-edge measurements reflect modulation of metal–oxygen hybridization as envisaged from the area-ratio variation of spectral features corresponding to <i>t<sub>2g</sub></i> and <i>e<sub>g</sub></i> states.
topic	cathode materials orbital symmetry states metal–oxygen hybridization
url	https://www.mdpi.com/2079-4991/10/4/759
work_keys_str_mv	AT jitendrapalsingh softxrayabsorptionspectroscopicinvestigationoflinisub08subcosub01submnsub01subosub2subcathodematerials AT jaeyeonpark softxrayabsorptionspectroscopicinvestigationoflinisub08subcosub01submnsub01subosub2subcathodematerials AT keunhwachae softxrayabsorptionspectroscopicinvestigationoflinisub08subcosub01submnsub01subosub2subcathodematerials AT docheonahn softxrayabsorptionspectroscopicinvestigationoflinisub08subcosub01submnsub01subosub2subcathodematerials AT sangsullee softxrayabsorptionspectroscopicinvestigationoflinisub08subcosub01submnsub01subosub2subcathodematerials
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Soft X-ray Absorption Spectroscopic Investigation of Li(Ni<sub>0.8</sub>Co<sub>0.1</sub>Mn<sub>0.1</sub>)O<sub>2</sub> Cathode Materials

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