Abstract Scope |
With the advent of an electric world, it is conceivable that the energy harvesting and storage devices as we know them today will suffer a breakthrough that modifies the cell architecture’s panorama. Comparing well-known materials and performances with multivalent materials in the same cell that allows for insulator and electrode thicknesses well beyond the conventional dimensions, consents for clear phenomena visualization. Here we analyze an Al/insulator/Cu cell in which the cell metal electrodes-collectors are separated by a thick SiO2, MgO, Li2O, Li1.5Al0.5Ge1.5(PO4)3, HfO2, or Li2.99Ba0.005ClO layer of powders with similar granulometry. Using atomic force microscopy, Kelvin probe and impedance spectroscopy, cyclic voltammetry, and theoretical approaches such as structure optimization, simulation of the electronic band structures, and work functions, a comparison was drawn. The analysis reveals an unexpected common emergency from the cell’s materials to align their surface chemical potential, even in operando when set to discharge with a resistor. |