Modulated electrochemical force microscopy: Investigation of sodium‐ion transport at hard carbon composite anodes.
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| Title: | Modulated electrochemical force microscopy: Investigation of sodium‐ion transport at hard carbon composite anodes. |
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| Authors: | Daboss, Sven1 (AUTHOR), Franke, Nikolas2 (AUTHOR), Fraboni, Beatrice2 (AUTHOR), Kranz, Christine1 (AUTHOR), Cramer, Tobias2 (AUTHOR) tobias.cramer@unibo.it |
| Source: | Journal of Microscopy. Apr2026, Vol. 302 Issue 1, p17-28. 12p. |
| Subjects: | Sodium ion batteries, Atomic force microscopy, Ionic conductivity, Composite materials, Electrochemical experiments, Energy storage, Carbon electrodes |
| Abstract: | For sodium (Na)‐ion batteries (SIBs), the next generation of sustainable batteries, hard carbon (HC) composite electrodes are the most used anodes. Here, we demonstrate the potential of modulated electrochemical force microscopy (mec‐AFM) to investigate electrochemical strain due to ion insertion at the electrolyte/electrode interface. HC composite anodes have a complex, multiphase structure, which include the HC particles, conductive carbon nanoparticles (carbon black) and the binder. To address the effect of the composite material on the sodium‐ion transport, we employ mec‐AFM. A HC composite anode was embedded in an epoxy‐polymer matrix and was polished to expose a micro‐sized area that enabled high‐frequency modulation of the ion transport. We analyse the influence of the modulation on interfacial forces and its role in generating electrochemical strain in the composite anode. Multichannel mec‐AFM imaging at varying electrode potentials revealed that the observed electrochemical strain predominantly occurred in the softer binder matrix rather than in the HC microparticles. Our findings underscore the significance of ionic transport pathways through the binder matrix and establish mec‐AFM as a novel AFM‐derived technique for visualising ion dynamics at battery interfaces. [ABSTRACT FROM AUTHOR] |
| Copyright of Journal of Microscopy is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
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| Header | DbId: egs DbLabel: Engineering Source An: 194010823 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Modulated electrochemical force microscopy: Investigation of sodium‐ion transport at hard carbon composite anodes. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Daboss%2C+Sven%22">Daboss, Sven</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Franke%2C+Nikolas%22">Franke, Nikolas</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Fraboni%2C+Beatrice%22">Fraboni, Beatrice</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Kranz%2C+Christine%22">Kranz, Christine</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Cramer%2C+Tobias%22">Cramer, Tobias</searchLink><relatesTo>2</relatesTo> (AUTHOR)<i> tobias.cramer@unibo.it</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Journal+of+Microscopy%22">Journal of Microscopy</searchLink>. Apr2026, Vol. 302 Issue 1, p17-28. 12p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Sodium+ion+batteries%22">Sodium ion batteries</searchLink><br /><searchLink fieldCode="DE" term="%22Atomic+force+microscopy%22">Atomic force microscopy</searchLink><br /><searchLink fieldCode="DE" term="%22Ionic+conductivity%22">Ionic conductivity</searchLink><br /><searchLink fieldCode="DE" term="%22Composite+materials%22">Composite materials</searchLink><br /><searchLink fieldCode="DE" term="%22Electrochemical+experiments%22">Electrochemical experiments</searchLink><br /><searchLink fieldCode="DE" term="%22Energy+storage%22">Energy storage</searchLink><br /><searchLink fieldCode="DE" term="%22Carbon+electrodes%22">Carbon electrodes</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: For sodium (Na)‐ion batteries (SIBs), the next generation of sustainable batteries, hard carbon (HC) composite electrodes are the most used anodes. Here, we demonstrate the potential of modulated electrochemical force microscopy (mec‐AFM) to investigate electrochemical strain due to ion insertion at the electrolyte/electrode interface. HC composite anodes have a complex, multiphase structure, which include the HC particles, conductive carbon nanoparticles (carbon black) and the binder. To address the effect of the composite material on the sodium‐ion transport, we employ mec‐AFM. A HC composite anode was embedded in an epoxy‐polymer matrix and was polished to expose a micro‐sized area that enabled high‐frequency modulation of the ion transport. We analyse the influence of the modulation on interfacial forces and its role in generating electrochemical strain in the composite anode. Multichannel mec‐AFM imaging at varying electrode potentials revealed that the observed electrochemical strain predominantly occurred in the softer binder matrix rather than in the HC microparticles. Our findings underscore the significance of ionic transport pathways through the binder matrix and establish mec‐AFM as a novel AFM‐derived technique for visualising ion dynamics at battery interfaces. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Journal of Microscopy is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1111/jmi.13417 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 12 StartPage: 17 Subjects: – SubjectFull: Sodium ion batteries Type: general – SubjectFull: Atomic force microscopy Type: general – SubjectFull: Ionic conductivity Type: general – SubjectFull: Composite materials Type: general – SubjectFull: Electrochemical experiments Type: general – SubjectFull: Energy storage Type: general – SubjectFull: Carbon electrodes Type: general Titles: – TitleFull: Modulated electrochemical force microscopy: Investigation of sodium‐ion transport at hard carbon composite anodes. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Daboss, Sven – PersonEntity: Name: NameFull: Franke, Nikolas – PersonEntity: Name: NameFull: Fraboni, Beatrice – PersonEntity: Name: NameFull: Kranz, Christine – PersonEntity: Name: NameFull: Cramer, Tobias IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 04 Text: Apr2026 Type: published Y: 2026 Identifiers: – Type: issn-print Value: 00222720 Numbering: – Type: volume Value: 302 – Type: issue Value: 1 Titles: – TitleFull: Journal of Microscopy Type: main |
| ResultId | 1 |
