EIS provides valuable kinetic and mechanistic data for various electrochemical systems, such as batteries or fuel cells. EIS operates by perturbing an electrochemical system in equilibrium or steady state through the application of a sinusoidal signal (AC voltage or AC current) over a wide range of frequencies. The system's sinusoidal response (current or voltage, respectively) to the applied perturbation is then monitored and analyzed.

EIS is widely used for studying the properties and degradation of battery cells and electrocatalytic systems. ePROBE offers products for simultaneous solid-state NMR and EIS analysis, increasing experimental efficiency and precision. These experiments can be performed using one of ePROBE's NMR probes with up to four electrochemistry ports, along with our custom solid-state cell for optimal electrical contact with the analyzed material.