fig3

Figure 3. (A) Backscattered SEM cross-section of a co-sintered 75 wt%/25 wt% LCO-LLZTO composite. Inset: the phase fraction is estimated to be around 61% LCO, 28% LLZTO, and 11% porosity based on the grayscale histogram of the selected rectangular region outlined in dashed white. The black, dark gray, and light gray regions correspond to voids, LCO and LLZTO, respectively; (B) A representative example of microstructure generated stochastically from spherical particles. The transparent, red, and yellow domains correspond to pores, CAM, and SE phases, respectively. SEM: Scanning electron microscopy; LCO-LLZTO: LiCoO₂-Li_6.4La₃Zr_1.4Ta_0.6O₁₂; CAM: cathode active material; SE: solid electrolyte.