Ni, Co, and Mn L-edge sXAS spectra obtained on NCM811 for various states of charge and discharge. The L3-to-L2 peak ratio is estimated by comparing the height of the L2 peak (dashed black lines) with that of the L3 peak. The vertical red lines represent the difference in peak heights. Because of shape variations, the height of the L2 peak is compared with that of the L3 saddle point in the case of Ni.
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