Fig. 6: Ex situ RIXS evidence for O2 formation. | Nature Communications

Fig. 6: Ex situ RIXS evidence for O2 formation.

From: Improving the oxygen redox reversibility of Li-rich battery cathode materials via Coulombic repulsive interactions strategy

Fig. 6: Ex situ RIXS evidence for O2 formation.The alternative text for this image may have been generated using AI.

O K-edge RIXS spectra at an excitation energy of 531 eV for the different charge–discharge states of the pristine sample and the enlarged feature when charged to 4.8 V (a, b). O K-edge RIXS spectra at an excitation energy of 531 eV for the different charge–discharge states of the M-LRO sample and the enlarged feature when charged to 4.8 V (c, d). The energy loss of ~0.2 eV represents the vibration of molecular oxygen. e Overlapping pattern of both samples to illustrate the redshift in the M-LRO spectrum.

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