Hyperspectral full-field quick-EXAFS imaging at the ROCK beamline for monitoring micrometre-sized heterogeneity of functional materials under process conditions

Briois, V.; Itié, J.P.; Polian, A.; King, A.; Traore, A.S.; Marceau, E.; Ersen, O.; La Fontaine, C.; Barthe, L.; Beauvois, A.; Roudenko, O.; Belin, S.

doi:10.1107/S1600577524006581

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Figure 11
LFP fraction distribution map for (a) electrode 1 and (b) electrode 2 for a voltage corresponding to 0.5 Li deintercalated during a 1 C charge of electrodes. Spatial resolution 5.2 µm × 5.2 µm. The fractions associated with the color of the colorbar at the top were obtained from the linear combination fitting of the 44544 spectra on each image considering the pure LFP and FP spectra isolated by MCR-ALS (Figs. S16 and S17). (c) Global composition for the FoV of both electrodes investigated by hyperspectral imaging considering the spectra averaged over all the pixels.

JOURNAL OF
SYNCHROTRON
RADIATION

ISSN: 1600-5775

Volume 31| Part 5| September 2024| Pages 1084-1104

https://doi.org/10.1107/S1600577524006581

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