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240114s2024 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202307151
|2 doi
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|a pubmed25n1222.xml
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|a (DE-627)NLM366813560
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|a (NLM)38190759
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
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|a Ma, Haoqing
|e verfasserin
|4 aut
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|a Dynamic Behavior of Spatially Confined Sn Clusters and Its Application in Highly Efficient Sodium Storage with High Initial Coulombic Efficiency
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|c 2024
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|a Text
|b txt
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Revised 11.04.2024
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2024 Wiley‐VCH GmbH.
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|a Advanced battery electrodes require a cautious design of microscale particles with built-in nanoscale features to exploit the advantages of both micro- and nano-particles relative to their performance attributes. Herein, the dynamic behavior of nanosized Sn clusters and their host pores in carbon nanofiber) during sodiation and desodiation is revealed using a state-of-the-art 3D electron microscopic reconstruction technique. For the first time, the anomalous expansion of Sn clusters after desodiation is observed owing to the aggregation of clusters/single atoms. Pore connectivity is retained despite the anomalous expansion, suggesting inhibition of solid electrolyte interface formation in the sub-2-nm pores. Taking advantage of the built-in nanoconfinement feature, the CNF film with nanometer-sized interconnected pores hosting Sn clusters (≈2 nm) enables high utilization (95% at a high rate of 1 A g-1) of Sn active sites while maintaining an improved initial Coulombic efficiency of 87%. The findings provide insights into electrochemical reactions in a confined space and a guiding principle in electrode design for battery applications
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|a Journal Article
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|a 3D reconstruction
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|a Sn cluster
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|a high initial Coulombic efficiency
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|a interconnected pores
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|a Yu, Ruohan
|e verfasserin
|4 aut
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|a Xu, Wangwang
|e verfasserin
|4 aut
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|a Zhang, Lei
|e verfasserin
|4 aut
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|a Chen, Jinghui
|e verfasserin
|4 aut
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1 |
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|a Zhang, Bomian
|e verfasserin
|4 aut
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1 |
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|a Li, Jiantao
|e verfasserin
|4 aut
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1 |
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|a Xu, Xu
|e verfasserin
|4 aut
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|a An, Qinyou
|e verfasserin
|4 aut
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| 700 |
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|a Xu, Weina
|e verfasserin
|4 aut
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|a Ma, Lu
|e verfasserin
|4 aut
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|a Agrawal, Kumar Varoon
|e verfasserin
|4 aut
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| 700 |
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|a Zhao, Kangning
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g 36(2024), 15 vom: 07. Apr., Seite e2307151
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnas
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| 773 |
1 |
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|g volume:36
|g year:2024
|g number:15
|g day:07
|g month:04
|g pages:e2307151
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|u http://dx.doi.org/10.1002/adma.202307151
|3 Volltext
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