Fig. 4: Oxidation states quantification of TMs.
From: Efficient direct repairing of lithium- and manganese-rich cathodes by concentrated solar radiation
a–c The TMs (Mn, Co, Ni) -L3 edge TEY (solid line) and TFY (dash line) spectra of electrodes at representative states. XAS spectra were normalized by the height between the highest peak and the background line. d The quantified mean oxidation states of each TM, based on the fitting results of the valence distributions in the spectra (a–c). The (CC) represents the Charging state, the (DC) represents the Discharging state and the (CSR) represents the sample after CSR treatment.
