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Updated: Aug 7, 2025
Failure Analysis of Batteries Using Synchrotron-based Hard X-ray Microtomography
Published on: August 26, 2015
Mapping the 3D position of battery cathode particles in Bragg coherent diffractive imaging
A G Shabalin1, M Zhang2, W Yao2
1Department of Physics, University of California San Diego, La Jolla, CA 92093-0319, USA.
This study introduces a new method to pinpoint particle locations within battery cathodes using Bragg coherent diffractive imaging. This advance aids in understanding particle behavior in thick battery materials.
Area of Science:
- Materials Science
- Nanotechnology
- Analytical Chemistry
Background:
- Bragg coherent diffractive imaging (BCDI) often lacks precise 3D crystal positioning within samples.
- Understanding spatially dependent particle behavior is crucial for inhomogeneous materials like thick battery cathodes.
Purpose of the Study:
- To develop and demonstrate a method for determining the 3D position of particles within a sample using BCDI.
- To enable detailed analysis of particle behavior in bulk materials.
Main Methods:
- Aligning particles precisely with the instrument's axis of rotation during BCDI.
- Utilizing a 60 µm-thick LiNi0.5Mn1.5O4 battery cathode for experimental validation.
Main Results:
- Achieved 20 µm precision for out-of-plane particle localization.
- Determined in-plane particle coordinates with 1 µm precision.
Conclusions:
- The developed alignment approach successfully determines 3D particle positions in thick battery cathodes.
- This technique enhances the study of spatially resolved phenomena in bulk materials.
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