fig4

Figure 4. (A) Schematic of the trilayer blocking cells; (B) Nyquist plots of PEO-LiTFSI|LLZO|PEO-LiTFSI cells at 60 °C with Neat LLZO (top) and APTES@LLZO (bottom) pellets. Grayscale lines show semicircles from each fit R-CPE element; (C) Equivalent circuit and fit resistances of the cells at 60 °C. Measurements at 25 °C can be found in Supplementary Figure 6. LLZO: Li₇La₃Zr₂O₁₂; PEO-LiTFSI: Poly (ethylene oxide)-lithium bis(trifluoromethanesulfonyl)imide; APTES: (3-aminopropyl)triethoxysilane; CPEs: Composite polymer electrolytes.