The charge/discharge profiles together with the cycle performance under different Crates (i.e., 0.1C, 0.2C, 0.5C, and 1C) are shown in Fig. and Fig. , respectively. It is evident that SSB-LIC@NCA exhibit higher capacity at any current density (about 80 mAh/g at any rate). In detail, the initial charge capacity for LIC@NCA compared to NCA is markedly increased from 71.8 mAh/g to 148.3 mAh/g at 0.1 C, from 42.8 mAh/g to 133.6 mAh/g at 0.2 C, from 8.4 mAh/g to 104.2 mAh/g at 0.5C, and from 0.2 mAh/g to 74.3 mAh/g at 1 C. The high polarization could be related to the instability of LPSCl against NCA, which leads to its decomposition and formation of a highly resistive interphase. The formation of such a resistive interlayer is evident from the impedance spectroscopy analysis conducted for both pristine NCA and LIC@NCA before and after cycling. The corresponding impedance spectra of the cells in the bode plot representation are shown in Fig. . Both cells exhibit two characteristic plateaus, whereby the highfrequency plateau represents the resistance of the electrolyte and the low-frequency plateau the interfacial impedance between the electrolyte and the electrode material. Here, the bulk resistances for SSB-NCA and SSB-LIC@NCA are similar (~44 ), while the interface resistance for SSB-LIC@NCA increased slightly (~20 ), which is associated with the LIC coating (Fig. ). The total resistance of the cell is about 120 , suggesting that the overpotential of the cell is dominated by the cell resistance. Despite the higher initial cell resistance of SSB-LIC@NCA the interfacial resistance of SSB-NCA is significantly increased already after the first cycle, which can be associated with interfacial degradation processes. This increase is even more pronounced after 100 cycles, where the resistance reaches values around 4813  in contrast to SSB-LIC@NCA with a resistance of about 267  (see Fig. ). An incremental increase in the interfacial resistance of SSB-LIC@NCA suggest that LIC coating can hinder or at least slow down interfacial degradation processes, and consequently improves the specific capacity and rate performance.