Dynamic Electrochemical Interfaces

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Electrochemical interfaces are at the heart of energy storage systems, where critical phenomena such as ion transport, solvent decomposition, and phase transitions govern performance and stability. In EIS Lab, we employ a multi-modal approach—combining electrochemical impedance spectroscopy (EIS), in-situ spectroscopic probes (e.g., Raman, FTIR), and scanning probe techniques—to understand the time-resolved evolution of solid-electrolyte interphase (SEI) and cathode-electrolyte interphase (CEI) layers. We focus on unraveling how solvent, salt, and additive chemistries modulate interfacial properties, and how these changes impact nucleation kinetics, charge transfer resistance, and long-term cycling. Our studies provide insights that are essential for controlling metal deposition morphology and suppressing dendrite formation.