fig5

Figure 5. (A) Visualization of 10 wt % (4 vol %) and 50 wt % (20 vol %) LLZO NPs in a PEO-LiTFSI matrix. The bulk materials and interphases are labeled accordingly. Interphase resistances are not necessarily to scale; (B-D) Modeled values of LLZO NP composite electrolytes for (B) total ionic conductivity at 25 °C; (C) total ionic conductivity at 60 °C; and (D) effective bulk transference number at 60 °C overlaid with experimentally determined values. Fit parameters are found in Supplementary Table 1. LLZO: Li₇La₃Zr₂O₁₂; NPs: Nanoparticles; PEO-LiTFSI: Poly (ethylene oxide)-lithium bis(trifluoromethanesulfonyl)imide.