fig7

Figure 7. (A) Nyquist plots of representative Li||Li symmetric cells comparing PEO-LiTFSI with 10 and 50 wt % Neat LLZO NP (left), APTES@LLZO NP (middle), and Al₂O₃@LLZO NP composites; (B) Representative galvanostatic cycling curves (10 min applied current, 40 min rest) for 50 wt % LLZO NP composites with different surface modifications; (C) Critical current density as a function of LLZO content. Small points represent values measured from individual cells, and large points and error bars represent the mean and standard deviation of three cells; (D) Correlation between CCD and total ionic and Li⁺ conductivities; (E) Correlation between CCD and R_Anode-Int; (F) Correlation between R_Anode-Int and total ionic and Li⁺ conductivities; All points in (D-F) are individual cells. Reported R² values are from linear regressions (solid and dashed lines) of the presented data. LLZO: Li₇La₃Zr₂O₁₂; NPs: Nanoparticles; PEO-LiTFSI: Poly (ethylene oxide)-lithium bis(trifluoromethanesulfonyl)imide; APTES: (3-aminopropyl)triethoxysilane; CCD: Critical current density.