(A) Schematic diagram of electrolyte diffusion in PBS with non-uniform and uniform particles. (B) Simulation of the electrolyte diffusion in PBA with uniform and nonuniform particles. (C) GITT date for MnFe_PBA_RT w/o EG, MnFe_PBA_RT w EG and MnFe_PBA_Cryo_−10°C with their respective diffusivities D. (D) The electrochemical impedance spectroscopy (EIS) of MnFe_PBA_RT w/o EG, MnFe_PBA_RT w EG and MnFe_PBA_Cryo_−10°C, and their corresponding Warburg impedances (inset). (E) The corresponding distribution of relaxation times (DRT) plot for MnFe_PBA_RT w/o EG, MnFe_PBA_RT w EG, and MnFe_PBA_Cryo_−10°C.