“…Focusing first on the P2ps pectra (Figure 10 a), the comparison of the three electrodes clearly reveals once more the presence of a metal phosphate surfacel ayer on the PA-CMCc athodes, whereas for the CMC and CA-CMC electrodes, only the peaks corresponding to Li x FP y (136.0 eV) and Li x PO y F z (134.7 eV), arising from the decomposition of the electrolyte salt, are observed. [51,60,61] Remarkably,f or the PA-CMC electrode, the relative intensity of the peak associated with MPO x is of the same order as those corresponding to the electrolyte decomposition products,i ndicating that the latter process results in the formationo farather thin layer of decomposition products. This interpretationi sa dditionally supportedb yt he analysiso ft he F1ss pectra, presented in Figure10b.T he surfacel ayer on the PA-CMCe lectrode is dominated by LiF (684.6 eV), whichi s knownt of orm as table, but rather resistive layer on the electrode.…”