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Alkali metal insertion into hard carbon – the full picture

Holger Euchner, Bhaghavathi P. Vinayan, Anji Munnangi Orcid Logo, Maximilian Fichtner, Axel Groß

Journal of Materials Chemistry A, Volume: 8, Issue: 28, Pages: 14205 - 14213

Swansea University Author: Anji Munnangi Orcid Logo

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DOI (Published version): 10.1039/d0ta04868b

Abstract

Carbon-based anodes are technologically highly relevant for Li and post-Li ion batteries. While the storage mechanism of Li in graphite is essentially understood, the alkali metal intercalation into carbon derivatives has been strongly debated. Here, we present a combined computational and experimen...

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Published in: Journal of Materials Chemistry A
ISSN: 2050-7488 2050-7496
Published: Royal Society of Chemistry (RSC) 2020
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URI: https://cronfa.swan.ac.uk/Record/cronfa54757
first_indexed 2020-07-15T14:38:42Z
last_indexed 2023-01-11T14:32:58Z
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spelling 2022-12-05T11:31:29.5317044 v2 54757 2020-07-15 Alkali metal insertion into hard carbon – the full picture 3ed0b4f2ff4fb9e87c7a73e7a3c39da7 0000-0001-9101-0252 Anji Munnangi Anji Munnangi true false 2020-07-15 EAAS Carbon-based anodes are technologically highly relevant for Li and post-Li ion batteries. While the storage mechanism of Li in graphite is essentially understood, the alkali metal intercalation into carbon derivatives has been strongly debated. Here, we present a combined computational and experimental study on the intercalation of Li and Na into hard carbon, elaborating on the impact of different alkali metals on the storage mechanism. Our results give strong evidence that the intercalation of Li and Na into hard carbon follows the same route and moreover, shows that in operando Raman scattering is a sensitive and powerful tool for characterizing the intercalation mechanism in carbon based materials. In fact, by exploiting the so-called double resonance, even information on the electronic structure can be obtained. Finally, theoretical predictions for the insertion mechanism of K are presented. Journal Article Journal of Materials Chemistry A 8 28 14205 14213 Royal Society of Chemistry (RSC) 2050-7488 2050-7496 30 6 2020 2020-06-30 10.1039/d0ta04868b COLLEGE NANME Engineering and Applied Sciences School COLLEGE CODE EAAS Swansea University 2022-12-05T11:31:29.5317044 2020-07-15T15:37:48.0012623 Faculty of Science and Engineering School of Engineering and Applied Sciences - Materials Science and Engineering Holger Euchner 1 Bhaghavathi P. Vinayan 2 Anji Munnangi 0000-0001-9101-0252 3 Maximilian Fichtner 4 Axel Groß 5 54757__17723__18744a6e1d2b4b3cb35f53061b88c953.pdf 54757.pdf 2020-07-16T12:01:11.2690631 Output 2096520 application/pdf Accepted Manuscript true 2021-06-30T00:00:00.0000000 true English
title Alkali metal insertion into hard carbon – the full picture
spellingShingle Alkali metal insertion into hard carbon – the full picture
Anji Munnangi
title_short Alkali metal insertion into hard carbon – the full picture
title_full Alkali metal insertion into hard carbon – the full picture
title_fullStr Alkali metal insertion into hard carbon – the full picture
title_full_unstemmed Alkali metal insertion into hard carbon – the full picture
title_sort Alkali metal insertion into hard carbon – the full picture
author_id_str_mv 3ed0b4f2ff4fb9e87c7a73e7a3c39da7
author_id_fullname_str_mv 3ed0b4f2ff4fb9e87c7a73e7a3c39da7_***_Anji Munnangi
author Anji Munnangi
author2 Holger Euchner
Bhaghavathi P. Vinayan
Anji Munnangi
Maximilian Fichtner
Axel Groß
format Journal article
container_title Journal of Materials Chemistry A
container_volume 8
container_issue 28
container_start_page 14205
publishDate 2020
institution Swansea University
issn 2050-7488
2050-7496
doi_str_mv 10.1039/d0ta04868b
publisher Royal Society of Chemistry (RSC)
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Engineering and Applied Sciences - Materials Science and Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Materials Science and Engineering
document_store_str 1
active_str 0
description Carbon-based anodes are technologically highly relevant for Li and post-Li ion batteries. While the storage mechanism of Li in graphite is essentially understood, the alkali metal intercalation into carbon derivatives has been strongly debated. Here, we present a combined computational and experimental study on the intercalation of Li and Na into hard carbon, elaborating on the impact of different alkali metals on the storage mechanism. Our results give strong evidence that the intercalation of Li and Na into hard carbon follows the same route and moreover, shows that in operando Raman scattering is a sensitive and powerful tool for characterizing the intercalation mechanism in carbon based materials. In fact, by exploiting the so-called double resonance, even information on the electronic structure can be obtained. Finally, theoretical predictions for the insertion mechanism of K are presented.
published_date 2020-06-30T07:38:51Z
_version_ 1829177846161997824
score 11.057796

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