Imaging in-operando LiCoO2 nanocrystallites with Bragg coherent X-ray diffraction
Abstract Although the LiCoO2 (LCO) cathode material has been widely used in commercial lithium ion batteries (LIB) and shows high stability, LIB’s improvements have several challenges that still need to be overcome. In this paper, we have studied the in-operando structural properties of LCO within b...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2024-10-01
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| Series: | Communications Chemistry |
| Online Access: | https://doi.org/10.1038/s42004-024-01331-y |
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| author | David Serban Daniel G. Porter Ahmed H. Mokhtar Mansoor Nellikkal Sivaperumal Uthayakumar Min Zhang Stephen P. Collins Alessandro Bombardi Peng Li Christoph Rau Marcus C. Newton |
| author_facet | David Serban Daniel G. Porter Ahmed H. Mokhtar Mansoor Nellikkal Sivaperumal Uthayakumar Min Zhang Stephen P. Collins Alessandro Bombardi Peng Li Christoph Rau Marcus C. Newton |
| author_sort | David Serban |
| collection | DOAJ |
| description | Abstract Although the LiCoO2 (LCO) cathode material has been widely used in commercial lithium ion batteries (LIB) and shows high stability, LIB’s improvements have several challenges that still need to be overcome. In this paper, we have studied the in-operando structural properties of LCO within battery cells using Bragg Coherent X-ray Diffraction Imaging to identify ways to optimise the LCO batteries’ cycling. We have successfully reconstructed the X-ray scattering phase variation (a fingerprint of atomic displacement) within a ≈ (1.6 × 1.4 × 1.3) μm3 LCO nanocrystal across a charge/discharge cycle. Reconstructions indicate strained domains forming, expanding, and fragmenting near the surface of the nanocrystal during charging, with a determined maximum relative lattice displacements of 0.467 Å. While discharging, all domains replicate in reverse the effects observed from the charging states, but with a lower maximum relative lattice displacements of 0.226 Å. These findings show the inefficiency-increasing domain dynamics within LCO lattices during cycling. |
| format | Article |
| id | doaj-art-c4744fa73cee40b78117c2526bcc079d |
| institution | OA Journals |
| issn | 2399-3669 |
| language | English |
| publishDate | 2024-10-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Communications Chemistry |
| spelling | doaj-art-c4744fa73cee40b78117c2526bcc079d2025-08-20T02:18:24ZengNature PortfolioCommunications Chemistry2399-36692024-10-01711910.1038/s42004-024-01331-yImaging in-operando LiCoO2 nanocrystallites with Bragg coherent X-ray diffractionDavid Serban0Daniel G. Porter1Ahmed H. Mokhtar2Mansoor Nellikkal3Sivaperumal Uthayakumar4Min Zhang5Stephen P. Collins6Alessandro Bombardi7Peng Li8Christoph Rau9Marcus C. Newton10Department of Physics & Astronomy, University of SouthamptonDiamond Light Source, Harwell Oxford CampusDepartment of Physics & Astronomy, University of SouthamptonDepartment of Physics & Astronomy, University of SouthamptonDepartment of Physics, Royal Holloway, University of LondonSchool of Chemistry, University of SouthamptonDiamond Light Source, Harwell Oxford CampusDiamond Light Source, Harwell Oxford CampusDiamond Light Source, Harwell Oxford CampusDiamond Light Source, Harwell Oxford CampusDepartment of Physics & Astronomy, University of SouthamptonAbstract Although the LiCoO2 (LCO) cathode material has been widely used in commercial lithium ion batteries (LIB) and shows high stability, LIB’s improvements have several challenges that still need to be overcome. In this paper, we have studied the in-operando structural properties of LCO within battery cells using Bragg Coherent X-ray Diffraction Imaging to identify ways to optimise the LCO batteries’ cycling. We have successfully reconstructed the X-ray scattering phase variation (a fingerprint of atomic displacement) within a ≈ (1.6 × 1.4 × 1.3) μm3 LCO nanocrystal across a charge/discharge cycle. Reconstructions indicate strained domains forming, expanding, and fragmenting near the surface of the nanocrystal during charging, with a determined maximum relative lattice displacements of 0.467 Å. While discharging, all domains replicate in reverse the effects observed from the charging states, but with a lower maximum relative lattice displacements of 0.226 Å. These findings show the inefficiency-increasing domain dynamics within LCO lattices during cycling.https://doi.org/10.1038/s42004-024-01331-y |
| spellingShingle | David Serban Daniel G. Porter Ahmed H. Mokhtar Mansoor Nellikkal Sivaperumal Uthayakumar Min Zhang Stephen P. Collins Alessandro Bombardi Peng Li Christoph Rau Marcus C. Newton Imaging in-operando LiCoO2 nanocrystallites with Bragg coherent X-ray diffraction Communications Chemistry |
| title | Imaging in-operando LiCoO2 nanocrystallites with Bragg coherent X-ray diffraction |
| title_full | Imaging in-operando LiCoO2 nanocrystallites with Bragg coherent X-ray diffraction |
| title_fullStr | Imaging in-operando LiCoO2 nanocrystallites with Bragg coherent X-ray diffraction |
| title_full_unstemmed | Imaging in-operando LiCoO2 nanocrystallites with Bragg coherent X-ray diffraction |
| title_short | Imaging in-operando LiCoO2 nanocrystallites with Bragg coherent X-ray diffraction |
| title_sort | imaging in operando licoo2 nanocrystallites with bragg coherent x ray diffraction |
| url | https://doi.org/10.1038/s42004-024-01331-y |
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