Correlation of the electronic structure and Li‐ion mobility with modulus and hardness in LiNi0.6Co0.2Mn0.2O2 cathodes by combined near edge X‐ray absorption finestructure spectroscopy, atomic force microscopy, and nanoindentation
Abstract The electrochemical performance of cathode materials in Li‐ion batteries is reflected in macroscopic observables such as the capacity, the voltage, and the state of charge (SOC). However, the physical origin of performance parameters are atomistic processes that scale up to a macroscopic pi...
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Wiley-VCH
2024-12-01
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| Series: | Electrochemical Science Advances |
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| Online Access: | https://doi.org/10.1002/elsa.202300017 |
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| author | Florian Hausen Niklas Scheer Bixian Ying Karin Kleiner |
| author_facet | Florian Hausen Niklas Scheer Bixian Ying Karin Kleiner |
| author_sort | Florian Hausen |
| collection | DOAJ |
| description | Abstract The electrochemical performance of cathode materials in Li‐ion batteries is reflected in macroscopic observables such as the capacity, the voltage, and the state of charge (SOC). However, the physical origin of performance parameters are atomistic processes that scale up to a macroscopic picture. Thus, revealing the function and failure of electrochemical devices requires a multiscale (and ‐time) approach using spectroscopic and microscopic techniques. In this work, we combine near‐edge X‐ray absorption fine structure spectroscopy (NEXAFS) to determine the chemical binding state of transition metals in LiNi0.6Co0.2Mn0.2O2 (NCM622), electrochemical strain microscopy to understand the Li‐ion mobility in such materials, and nanoindentation to relate the mechanical properties exhibited by the material to the chemical state and ion mobility. Strikingly, a clear correlation between the chemical binding, the mechanical properties, and the Li‐ion mobility is found. Thereby, the significant relation of chemo‐mechanical properties of NCM622 on a local and global scale is clearly demonstrated. |
| format | Article |
| id | doaj-art-e0b6fb9788244df881bff87455c79769 |
| institution | OA Journals |
| issn | 2698-5977 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Wiley-VCH |
| record_format | Article |
| series | Electrochemical Science Advances |
| spelling | doaj-art-e0b6fb9788244df881bff87455c797692025-08-20T01:58:27ZengWiley-VCHElectrochemical Science Advances2698-59772024-12-0146n/an/a10.1002/elsa.202300017Correlation of the electronic structure and Li‐ion mobility with modulus and hardness in LiNi0.6Co0.2Mn0.2O2 cathodes by combined near edge X‐ray absorption finestructure spectroscopy, atomic force microscopy, and nanoindentationFlorian Hausen0Niklas Scheer1Bixian Ying2Karin Kleiner3Institute of Energy and Climate Research IEK‐9, Forschungszentrum Jülich GmbH Jülich GermanyInstitute of Energy and Climate Research IEK‐9, Forschungszentrum Jülich GmbH Jülich GermanyMünster Electrochemical Energy Technology (MEET) University of Münster (WWU) Corrensstraße 46 Münster GermanyMünster Electrochemical Energy Technology (MEET) University of Münster (WWU) Corrensstraße 46 Münster GermanyAbstract The electrochemical performance of cathode materials in Li‐ion batteries is reflected in macroscopic observables such as the capacity, the voltage, and the state of charge (SOC). However, the physical origin of performance parameters are atomistic processes that scale up to a macroscopic picture. Thus, revealing the function and failure of electrochemical devices requires a multiscale (and ‐time) approach using spectroscopic and microscopic techniques. In this work, we combine near‐edge X‐ray absorption fine structure spectroscopy (NEXAFS) to determine the chemical binding state of transition metals in LiNi0.6Co0.2Mn0.2O2 (NCM622), electrochemical strain microscopy to understand the Li‐ion mobility in such materials, and nanoindentation to relate the mechanical properties exhibited by the material to the chemical state and ion mobility. Strikingly, a clear correlation between the chemical binding, the mechanical properties, and the Li‐ion mobility is found. Thereby, the significant relation of chemo‐mechanical properties of NCM622 on a local and global scale is clearly demonstrated.https://doi.org/10.1002/elsa.202300017atomic force microscopy (ESM)correlative spectroscopy and microscopyhardnessnanoindentationNCM622NEXAFS |
| spellingShingle | Florian Hausen Niklas Scheer Bixian Ying Karin Kleiner Correlation of the electronic structure and Li‐ion mobility with modulus and hardness in LiNi0.6Co0.2Mn0.2O2 cathodes by combined near edge X‐ray absorption finestructure spectroscopy, atomic force microscopy, and nanoindentation Electrochemical Science Advances atomic force microscopy (ESM) correlative spectroscopy and microscopy hardness nanoindentation NCM622 NEXAFS |
| title | Correlation of the electronic structure and Li‐ion mobility with modulus and hardness in LiNi0.6Co0.2Mn0.2O2 cathodes by combined near edge X‐ray absorption finestructure spectroscopy, atomic force microscopy, and nanoindentation |
| title_full | Correlation of the electronic structure and Li‐ion mobility with modulus and hardness in LiNi0.6Co0.2Mn0.2O2 cathodes by combined near edge X‐ray absorption finestructure spectroscopy, atomic force microscopy, and nanoindentation |
| title_fullStr | Correlation of the electronic structure and Li‐ion mobility with modulus and hardness in LiNi0.6Co0.2Mn0.2O2 cathodes by combined near edge X‐ray absorption finestructure spectroscopy, atomic force microscopy, and nanoindentation |
| title_full_unstemmed | Correlation of the electronic structure and Li‐ion mobility with modulus and hardness in LiNi0.6Co0.2Mn0.2O2 cathodes by combined near edge X‐ray absorption finestructure spectroscopy, atomic force microscopy, and nanoindentation |
| title_short | Correlation of the electronic structure and Li‐ion mobility with modulus and hardness in LiNi0.6Co0.2Mn0.2O2 cathodes by combined near edge X‐ray absorption finestructure spectroscopy, atomic force microscopy, and nanoindentation |
| title_sort | correlation of the electronic structure and li ion mobility with modulus and hardness in lini0 6co0 2mn0 2o2 cathodes by combined near edge x ray absorption finestructure spectroscopy atomic force microscopy and nanoindentation |
| topic | atomic force microscopy (ESM) correlative spectroscopy and microscopy hardness nanoindentation NCM622 NEXAFS |
| url | https://doi.org/10.1002/elsa.202300017 |
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