Operando real-space imaging of a structural phase transformation in the high-voltage electrode Li x Ni0.5Mn1.5O4
Abstract Discontinuous solid-solid phase transformations play a pivotal role in determining the properties of rechargeable battery electrodes. By leveraging operando Bragg Coherent Diffractive Imaging (BCDI), we investigate the discontinuous phase transformation in Li x Ni0.5Mn1.5O4 within an operat...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2024-12-01
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| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-024-55010-6 |
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| author | Yifei Sun Sunny Hy Nelson Hua James Wingert Ross Harder Ying Shirley Meng Oleg Shpyrko Andrej Singer |
| author_facet | Yifei Sun Sunny Hy Nelson Hua James Wingert Ross Harder Ying Shirley Meng Oleg Shpyrko Andrej Singer |
| author_sort | Yifei Sun |
| collection | DOAJ |
| description | Abstract Discontinuous solid-solid phase transformations play a pivotal role in determining the properties of rechargeable battery electrodes. By leveraging operando Bragg Coherent Diffractive Imaging (BCDI), we investigate the discontinuous phase transformation in Li x Ni0.5Mn1.5O4 within an operational Li metal coin cell. Throughout Li-intercalation, we directly observe the nucleation and growth of the Li-rich phase within the initially charged Li-poor phase in a 500 nm particle. Supported by the microelasticity model, the operando imaging unveils an evolution from a curved coherent to a planar semi-coherent interface driven by dislocation dynamics. Our data indicates negligible kinetic limitations from interface propagation impacting the transformation kinetics, even at a discharge rate of C/2 (80 mA/g). This study highlights BCDI’s capability to decode complex operando diffraction data, offering exciting opportunities to study nanoscale phase transformations with various stimuli. |
| format | Article |
| id | doaj-art-2f6b41e4f047452ead6a01c9fdf00cf0 |
| institution | Kabale University |
| issn | 2041-1723 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Nature Communications |
| spelling | doaj-art-2f6b41e4f047452ead6a01c9fdf00cf02025-01-05T12:34:41ZengNature PortfolioNature Communications2041-17232024-12-011511810.1038/s41467-024-55010-6Operando real-space imaging of a structural phase transformation in the high-voltage electrode Li x Ni0.5Mn1.5O4Yifei Sun0Sunny Hy1Nelson Hua2James Wingert3Ross Harder4Ying Shirley Meng5Oleg Shpyrko6Andrej Singer7Department of Materials Science and Engineering, Cornell UniversityDepartment of Nanoengineering, University of California San DiegoDepartment of Physics, University of California San DiegoDepartment of Physics, University of California San DiegoAdvanced Photon Source, Argonne National LaboratoryDepartment of Nanoengineering, University of California San DiegoDepartment of Physics, University of California San DiegoDepartment of Materials Science and Engineering, Cornell UniversityAbstract Discontinuous solid-solid phase transformations play a pivotal role in determining the properties of rechargeable battery electrodes. By leveraging operando Bragg Coherent Diffractive Imaging (BCDI), we investigate the discontinuous phase transformation in Li x Ni0.5Mn1.5O4 within an operational Li metal coin cell. Throughout Li-intercalation, we directly observe the nucleation and growth of the Li-rich phase within the initially charged Li-poor phase in a 500 nm particle. Supported by the microelasticity model, the operando imaging unveils an evolution from a curved coherent to a planar semi-coherent interface driven by dislocation dynamics. Our data indicates negligible kinetic limitations from interface propagation impacting the transformation kinetics, even at a discharge rate of C/2 (80 mA/g). This study highlights BCDI’s capability to decode complex operando diffraction data, offering exciting opportunities to study nanoscale phase transformations with various stimuli.https://doi.org/10.1038/s41467-024-55010-6 |
| spellingShingle | Yifei Sun Sunny Hy Nelson Hua James Wingert Ross Harder Ying Shirley Meng Oleg Shpyrko Andrej Singer Operando real-space imaging of a structural phase transformation in the high-voltage electrode Li x Ni0.5Mn1.5O4 Nature Communications |
| title | Operando real-space imaging of a structural phase transformation in the high-voltage electrode Li x Ni0.5Mn1.5O4 |
| title_full | Operando real-space imaging of a structural phase transformation in the high-voltage electrode Li x Ni0.5Mn1.5O4 |
| title_fullStr | Operando real-space imaging of a structural phase transformation in the high-voltage electrode Li x Ni0.5Mn1.5O4 |
| title_full_unstemmed | Operando real-space imaging of a structural phase transformation in the high-voltage electrode Li x Ni0.5Mn1.5O4 |
| title_short | Operando real-space imaging of a structural phase transformation in the high-voltage electrode Li x Ni0.5Mn1.5O4 |
| title_sort | operando real space imaging of a structural phase transformation in the high voltage electrode li x ni0 5mn1 5o4 |
| url | https://doi.org/10.1038/s41467-024-55010-6 |
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