Better Understanding, Lasting Impact, Scientific Progress
Bulk electronic conductivity of NMC is orders of magnitude larger than previously reported. It's because contact resistances were not properly excluded from measurements. We also find a significant carbon-related impedance component in porous electrodes, as resistive as the charge-transfer resistance but at an even lower frequency.
Did you know that mobility can be a misleading metric in understanding charge transport? We explain the pitfalls of Drude mobility.
Wondering how to fit Seebeck-conductivity relations to your data? Is there an explicit equation?
Elongated Fermi surfaces in perovskites like SrTiO3 explain the T2 resistivity, previously thought to be from electron-electron interactions/scattering.