EIS provides rich, multidimensional insights into interfacial processes . However, it is highly convoluted by the complex, coupled EDL responses of the multiple components in the electrified interface. Therefore, the accurate interpretation of EIS data hinges on a comprehensive understanding of the EDL under AC conditions. Traditional methodologies, which often rely on empirical fitting models such as equivalent electrical circuits , fall short of capturing the intricate physical and chemical phenomena occurring at the interface . This lack of knowledge hampers the full exploitation of EIS as a versatile tool for electrochemical analysis and raises concerns about the reliability of its data, as observed responses often appear without a solid theoretical basis.