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© 2025. This work is published under http://creativecommons.org/licenses/by/4.0/ (the "License"). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.

Abstract

Sn‐based electrodes are promising candidates for next‐generation lithium‐ion batteries. However, it suffers from deleterious micro‐structural deformation as it undergoes drastic volume changes upon lithium insertion and extraction. Progress in designing these materials is limited to complex structures. There is a significant need to develop an alloy‐based anode that can be industrially manufactured and offers high reversible capacity. This necessitates a profound understanding of the interplay between structural changes and electrochemical performance. Here, operando X‐ray imaging is used to correlate the morphological evolution to electrochemical performance in foil and foam systems. The 3D Sn‐foam‐like structure electrode is fabricated in‐house as a practical approach to accommodate the volume expansion and alleviate the mechanical stress experienced upon alloying/dealloying. Results show that generating pores in Sn electrodes can help manage the volume expansion and mitigate the severe mechanical stress in thick electrodes during alloying/dealloying processes. The foam electrode demonstrates superior electrochemical performance compared to non‐porous Sn foil with an equivalent absolute capacity. This work advances the understanding of the real‐time morphological evolution of Sn bulky electrodes.

Details

Title
Morphological Evolution of Sn‐Metal‐Based Anodes for Lithium‐Ion Batteries Using Operando X‐Ray Imaging
Author
Bouabadi, Bouchra 1 ; Hilger, André 2 ; Kamm, Paul H. 1 ; Neu, Tillmann R. 1 ; Kardjilov, Nikolay 2 ; Sintschuk, Michael 3 ; Markötter, Henning 3 ; Schedel‐Niedrig, Thomas 2 ; Abou‐Ras, Daniel 4 ; García‐Moreno, Francisco 1 ; Risse, Sebastian 2   VIAFID ORCID Logo 

 Department of Microstructure and Residual Stress Analysis, Helmholtz‐Zentrum Berlin für Materialien und Energie, Berlin, Germany 
 Institute for Electrochemical Energy Storage (CE‐IEES), Helmholtz‐Zentrum Berlin für Materialien und Energie, Berlin, Germany 
 Bundesanstalt für Materialforschung und ‐Prüfung, Berlin, Germany 
 Department of Structure and Dynamics of Energy Materials (SE‐ASD), Helmholtz‐Zentrum Berlin für Materialien und Energie, Berlin, Germany 
Section
Research Article
Publication year
2025
Publication date
Mar 1, 2025
Publisher
John Wiley & Sons, Inc.
e-ISSN
21983844
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
3176612690
Copyright
© 2025. This work is published under http://creativecommons.org/licenses/by/4.0/ (the "License"). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.