Mapping the 3D position of battery cathode particles in Bragg coherent diffractive imaging

In Bragg coherent diffractive imaging, the precise location of the measured crystals in the interior of the sample is usually missing. Obtaining this information would help the study of the spatially dependent behavior of particles in the bulk of inhomogeneous samples, such as extra-thick battery cathodes. This work presents an approach to determine the 3D position of particles by precisely aligning them at the instrument axis of rotation. In the test experiment reported here, with a 60   µ m-thick LiNi0.5Mn1.5O4 battery cathode, the particles were located with a precision of 20   µ m in the out-of-plane direction, and the in-plane coordinates were determined with a   precision of 1   µ m.

Source: Journal of Synchrotron Radiation - February 16, 2023 Category: Physics Authors: Shabalin, A.G. Zhang, M. Yao, W. Rysov, R. Ren, Z. Lapkin, D. Kim, Y.-Y. Assalauova, D. Mukharamova, N. Sprung, M. Vartanyants, I.A. Meng, Y.S. Shpyrko, O.G. Tags: extra-thick battery cathodes Bragg coherent X-ray diffractive imaging Bragg diffraction sphere of confusion 3D mapping short communications Source Type: research