In Situ TEM Investigation of the Lithiation and Delithiation Process Between Graphene Sheets in the Presence of Atomic Defects
Abstract: Using advanced in situ transmission electron microscopy, the lithiation and delithiation processes into graphene sheets are studied and significant differences are detected in the structural evolution of the system. Thin fcc lithium crystals with faceted shapes are formed between graphene sheets during lithiation, but are transformed into irregular patches during delithiation. It is found that defects such as vacancies in graphene and impurity atoms play the key role in these processes. Specifically, during intercalation the lithium crystals nucleate at vacancies in graphene, while upon delithiation the impurity oxygen atoms initially embedded at octahedral interstitial positions inside the lithium crystals agglomerate at the edges of the crystals, thus giving rise to the formation of amorphous lithium oxide patches, where lithium ions are trapped.
- Location
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Deutsche Nationalbibliothek Frankfurt am Main
- Extent
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Online-Ressource
- Language
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Englisch
- Bibliographic citation
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In Situ TEM Investigation of the Lithiation and Delithiation Process Between Graphene Sheets in the Presence of Atomic Defects ; day:18 ; month:07 ; year:2024 ; extent:10
Advanced functional materials ; (18.07.2024) (gesamt 10)
- Creator
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Li, Yueliang
Börrnert, Felix
Ghorbani‐Asl, Mahdi
Biskupek, Johannes
Zhang, Xuemei
Zhang, Yongsheng
Bresser, Dominic
Krasheninnikov, Arkady V.
Kaiser, Ute
- DOI
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10.1002/adfm.202406034
- URN
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urn:nbn:de:101:1-2407181435442.377217860066
- Rights
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Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Last update
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14.08.2025, 10:54 AM CEST
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Associated
- Li, Yueliang
- Börrnert, Felix
- Ghorbani‐Asl, Mahdi
- Biskupek, Johannes
- Zhang, Xuemei
- Zhang, Yongsheng
- Bresser, Dominic
- Krasheninnikov, Arkady V.
- Kaiser, Ute
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