3D Correlative Imaging of Lithium Ion Concentration in a Vertically Oriented Electrode Microstructure with a Density Gradient
Abstract The performance of Li+ ion batteries (LIBs) is hindered by steep Li+ ion concentration gradients in the electrodes. Although thick electrodes (≥300 µm) have the potential for reducing the proportion of inactive components inside LIBs and increasing battery energy density, the Li+ ion concen...
| Main Authors: | , , , , , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2022-05-01
|
| Series: | Advanced Science |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/advs.202105723 |
| _version_ | 1829459275865391104 |
|---|---|
| author | Chun Huang Matthew D. Wilson Kosuke Suzuki Enzo Liotti Thomas Connolley Oxana V. Magdysyuk Stephen Collins Frederic Van Assche Matthieu N. Boone Matthew C. Veale Andrew Lui Rhian‐Mair Wheater Chu Lun Alex Leung |
| author_facet | Chun Huang Matthew D. Wilson Kosuke Suzuki Enzo Liotti Thomas Connolley Oxana V. Magdysyuk Stephen Collins Frederic Van Assche Matthieu N. Boone Matthew C. Veale Andrew Lui Rhian‐Mair Wheater Chu Lun Alex Leung |
| author_sort | Chun Huang |
| collection | DOAJ |
| description | Abstract The performance of Li+ ion batteries (LIBs) is hindered by steep Li+ ion concentration gradients in the electrodes. Although thick electrodes (≥300 µm) have the potential for reducing the proportion of inactive components inside LIBs and increasing battery energy density, the Li+ ion concentration gradient problem is exacerbated. Most understanding of Li+ ion diffusion in the electrodes is based on computational modeling because of the low atomic number (Z) of Li. There are few experimental methods to visualize Li+ ion concentration distribution of the electrode within a battery of typical configurations, for example, coin cells with stainless steel casing. Here, for the first time, an interrupted in situ correlative imaging technique is developed, combining novel, full‐field X‐ray Compton scattering imaging with X‐ray computed tomography that allows 3D pixel‐by‐pixel mapping of both Li+ stoichiometry and electrode microstructure of a LiNi0.8Mn0.1Co0.1O2 cathode to correlate the chemical and physical properties of the electrode inside a working coin cell battery. An electrode microstructure containing vertically oriented pore arrays and a density gradient is fabricated. It is shown how the designed electrode microstructure improves Li+ ion diffusivity, homogenizes Li+ ion concentration through the ultra‐thick electrode (1 mm), and improves utilization of electrode active materials. |
| first_indexed | 2024-12-12T11:16:49Z |
| format | Article |
| id | doaj.art-3bc637bc1b874925a6966127d6bde96f |
| institution | Directory Open Access Journal |
| issn | 2198-3844 |
| language | English |
| last_indexed | 2024-12-12T11:16:49Z |
| publishDate | 2022-05-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advanced Science |
| spelling | doaj.art-3bc637bc1b874925a6966127d6bde96f2022-12-22T00:26:08ZengWileyAdvanced Science2198-38442022-05-01916n/an/a10.1002/advs.2021057233D Correlative Imaging of Lithium Ion Concentration in a Vertically Oriented Electrode Microstructure with a Density GradientChun Huang0Matthew D. Wilson1Kosuke Suzuki2Enzo Liotti3Thomas Connolley4Oxana V. Magdysyuk5Stephen Collins6Frederic Van Assche7Matthieu N. Boone8Matthew C. Veale9Andrew Lui10Rhian‐Mair Wheater11Chu Lun Alex Leung12Department of Materials Imperial College London London SW7 2AZ UKSTFC‐UKRI Rutherford Appleton Laboratory Harwell Campus Didcot Oxfordshire OX11 0QX UKFaculty of Science and Technology Gunma University 1‐5‐1 Tenjin‐cho, Kiryu Gunma 376‐8515 JapanDepartment of Materials University of Oxford Oxford OX1 3PH UKDiamond Light Source Harwell Science and Innovation Campus Didcot Oxfordshire OX11 0QX UKDiamond Light Source Harwell Science and Innovation Campus Didcot Oxfordshire OX11 0QX UKDiamond Light Source Harwell Science and Innovation Campus Didcot Oxfordshire OX11 0QX UKRadiation Physics Department of Physics and Astronomy Faculty of Sciences Ghent University Proeftuinstraat 86/N12 Gent 9000 BelgiumRadiation Physics Department of Physics and Astronomy Faculty of Sciences Ghent University Proeftuinstraat 86/N12 Gent 9000 BelgiumSTFC‐UKRI Rutherford Appleton Laboratory Harwell Campus Didcot Oxfordshire OX11 0QX UKDepartment of Materials University of Oxford Oxford OX1 3PH UKSTFC‐UKRI Rutherford Appleton Laboratory Harwell Campus Didcot Oxfordshire OX11 0QX UKResearch Complex at Harwell Rutherford Appleton Laboratory Didcot Oxfordshire OX11 0FA UKAbstract The performance of Li+ ion batteries (LIBs) is hindered by steep Li+ ion concentration gradients in the electrodes. Although thick electrodes (≥300 µm) have the potential for reducing the proportion of inactive components inside LIBs and increasing battery energy density, the Li+ ion concentration gradient problem is exacerbated. Most understanding of Li+ ion diffusion in the electrodes is based on computational modeling because of the low atomic number (Z) of Li. There are few experimental methods to visualize Li+ ion concentration distribution of the electrode within a battery of typical configurations, for example, coin cells with stainless steel casing. Here, for the first time, an interrupted in situ correlative imaging technique is developed, combining novel, full‐field X‐ray Compton scattering imaging with X‐ray computed tomography that allows 3D pixel‐by‐pixel mapping of both Li+ stoichiometry and electrode microstructure of a LiNi0.8Mn0.1Co0.1O2 cathode to correlate the chemical and physical properties of the electrode inside a working coin cell battery. An electrode microstructure containing vertically oriented pore arrays and a density gradient is fabricated. It is shown how the designed electrode microstructure improves Li+ ion diffusivity, homogenizes Li+ ion concentration through the ultra‐thick electrode (1 mm), and improves utilization of electrode active materials.https://doi.org/10.1002/advs.202105723density gradiention concentrationvertically oriented structure |
| spellingShingle | Chun Huang Matthew D. Wilson Kosuke Suzuki Enzo Liotti Thomas Connolley Oxana V. Magdysyuk Stephen Collins Frederic Van Assche Matthieu N. Boone Matthew C. Veale Andrew Lui Rhian‐Mair Wheater Chu Lun Alex Leung 3D Correlative Imaging of Lithium Ion Concentration in a Vertically Oriented Electrode Microstructure with a Density Gradient Advanced Science density gradient ion concentration vertically oriented structure |
| title | 3D Correlative Imaging of Lithium Ion Concentration in a Vertically Oriented Electrode Microstructure with a Density Gradient |
| title_full | 3D Correlative Imaging of Lithium Ion Concentration in a Vertically Oriented Electrode Microstructure with a Density Gradient |
| title_fullStr | 3D Correlative Imaging of Lithium Ion Concentration in a Vertically Oriented Electrode Microstructure with a Density Gradient |
| title_full_unstemmed | 3D Correlative Imaging of Lithium Ion Concentration in a Vertically Oriented Electrode Microstructure with a Density Gradient |
| title_short | 3D Correlative Imaging of Lithium Ion Concentration in a Vertically Oriented Electrode Microstructure with a Density Gradient |
| title_sort | 3d correlative imaging of lithium ion concentration in a vertically oriented electrode microstructure with a density gradient |
| topic | density gradient ion concentration vertically oriented structure |
| url | https://doi.org/10.1002/advs.202105723 |
| work_keys_str_mv | AT chunhuang 3dcorrelativeimagingoflithiumionconcentrationinaverticallyorientedelectrodemicrostructurewithadensitygradient AT matthewdwilson 3dcorrelativeimagingoflithiumionconcentrationinaverticallyorientedelectrodemicrostructurewithadensitygradient AT kosukesuzuki 3dcorrelativeimagingoflithiumionconcentrationinaverticallyorientedelectrodemicrostructurewithadensitygradient AT enzoliotti 3dcorrelativeimagingoflithiumionconcentrationinaverticallyorientedelectrodemicrostructurewithadensitygradient AT thomasconnolley 3dcorrelativeimagingoflithiumionconcentrationinaverticallyorientedelectrodemicrostructurewithadensitygradient AT oxanavmagdysyuk 3dcorrelativeimagingoflithiumionconcentrationinaverticallyorientedelectrodemicrostructurewithadensitygradient AT stephencollins 3dcorrelativeimagingoflithiumionconcentrationinaverticallyorientedelectrodemicrostructurewithadensitygradient AT fredericvanassche 3dcorrelativeimagingoflithiumionconcentrationinaverticallyorientedelectrodemicrostructurewithadensitygradient AT matthieunboone 3dcorrelativeimagingoflithiumionconcentrationinaverticallyorientedelectrodemicrostructurewithadensitygradient AT matthewcveale 3dcorrelativeimagingoflithiumionconcentrationinaverticallyorientedelectrodemicrostructurewithadensitygradient AT andrewlui 3dcorrelativeimagingoflithiumionconcentrationinaverticallyorientedelectrodemicrostructurewithadensitygradient AT rhianmairwheater 3dcorrelativeimagingoflithiumionconcentrationinaverticallyorientedelectrodemicrostructurewithadensitygradient AT chulunalexleung 3dcorrelativeimagingoflithiumionconcentrationinaverticallyorientedelectrodemicrostructurewithadensitygradient |