Fig. 2.

Morphological and structural characterization for the PLL composite solid electrolyte. (A and B) Digital images of the PLL electrolyte at (A) flat and (B) bended states. (C and D) SEM images of (C) the surface and (D) a cross-section of the PLL electrolyte. (E) XRD patterns of the PLL electrolyte (red), the PEO-LiTFSI electrolyte (green), pure PEO membrane (orange), LLZTO powders (blue), and the powder diffraction file (PDF) of Li₅La₂Nb₂O₁₂. (Scale bars in C and D, 10 μm.)