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3D correlative imaging of lithium ion concentration in a vertically oriented electrode microstructure with a density gradient

Chun Huang, Matthew D. Wilson, Kosuke Suzuki, Enzo Liotti, Thomas Connolley, Oxana V. Magdysyuk, Stephen Collins, Frederic Van Assche (UGent) , Matthieu Boone (UGent) , Matthew C. Veale, et al.
(2022) ADVANCED SCIENCE. 9(16).
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Abstract
The performance of Li+ ion batteries (LIBs) is hindered by steep Li+ ion concentration gradients in the electrodes. Although thick electrodes (>= 300 mu m) 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.
Keywords
General Physics and Astronomy, General Engineering, Biochemistry, Genetics and Molecular Biology (miscellaneous), General Materials Science, General Chemical Engineering, Medicine (miscellaneous), density gradient, ion concentration, vertically oriented structure, COMPTON-SCATTERING, BATTERY ELECTRODES, IMPEDANCE, CATHODES, TOMOGRAPHY, TORTUOSITY, EVOLUTION, INTERFACE, DIFFUSION, POROSITY

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MLA
Huang, Chun, et al. “3D Correlative Imaging of Lithium Ion Concentration in a Vertically Oriented Electrode Microstructure with a Density Gradient.” ADVANCED SCIENCE, vol. 9, no. 16, 2022, doi:10.1002/advs.202105723.
APA
Huang, C., Wilson, M. D., Suzuki, K., Liotti, E., Connolley, T., Magdysyuk, O. V., … Leung, C. L. A. (2022). 3D correlative imaging of lithium ion concentration in a vertically oriented electrode microstructure with a density gradient. ADVANCED SCIENCE, 9(16). https://doi.org/10.1002/advs.202105723
Chicago author-date
Huang, Chun, Matthew D. Wilson, Kosuke Suzuki, Enzo Liotti, Thomas Connolley, Oxana V. Magdysyuk, Stephen Collins, et al. 2022. “3D Correlative Imaging of Lithium Ion Concentration in a Vertically Oriented Electrode Microstructure with a Density Gradient.” ADVANCED SCIENCE 9 (16). https://doi.org/10.1002/advs.202105723.
Chicago author-date (all authors)
Huang, Chun, Matthew D. Wilson, Kosuke Suzuki, Enzo Liotti, Thomas Connolley, Oxana V. Magdysyuk, Stephen Collins, Frederic Van Assche, Matthieu Boone, Matthew C. Veale, Andrew Lui, Rhian‐Mair Wheater, and Chu Lun Alex Leung. 2022. “3D Correlative Imaging of Lithium Ion Concentration in a Vertically Oriented Electrode Microstructure with a Density Gradient.” ADVANCED SCIENCE 9 (16). doi:10.1002/advs.202105723.
Vancouver
1.
Huang C, Wilson MD, Suzuki K, Liotti E, Connolley T, Magdysyuk OV, et al. 3D correlative imaging of lithium ion concentration in a vertically oriented electrode microstructure with a density gradient. ADVANCED SCIENCE. 2022;9(16).
IEEE
[1]
C. Huang et al., “3D correlative imaging of lithium ion concentration in a vertically oriented electrode microstructure with a density gradient,” ADVANCED SCIENCE, vol. 9, no. 16, 2022.
@article{8755286,
  abstract     = {{The performance of Li+ ion batteries (LIBs) is hindered by steep Li+ ion concentration gradients in the electrodes. Although thick electrodes (>= 300 mu m) 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.}},
  articleno    = {{2105723}},
  author       = {{Huang, Chun and Wilson, Matthew D. and Suzuki, Kosuke and Liotti, Enzo and Connolley, Thomas and Magdysyuk, Oxana V. and Collins, Stephen and Van Assche, Frederic and Boone, Matthieu and Veale, Matthew C. and Lui, Andrew and Wheater, Rhian‐Mair and Leung, Chu Lun Alex}},
  issn         = {{2198-3844}},
  journal      = {{ADVANCED SCIENCE}},
  keywords     = {{General Physics and Astronomy,General Engineering,Biochemistry,Genetics and Molecular Biology (miscellaneous),General Materials Science,General Chemical Engineering,Medicine (miscellaneous),density gradient,ion concentration,vertically oriented structure,COMPTON-SCATTERING,BATTERY ELECTRODES,IMPEDANCE,CATHODES,TOMOGRAPHY,TORTUOSITY,EVOLUTION,INTERFACE,DIFFUSION,POROSITY}},
  language     = {{eng}},
  number       = {{16}},
  pages        = {{12}},
  title        = {{3D correlative imaging of lithium ion concentration in a vertically oriented electrode microstructure with a density gradient}},
  url          = {{http://doi.org/10.1002/advs.202105723}},
  volume       = {{9}},
  year         = {{2022}},
}
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