This course provides the knowledge required to understand electrode and interface processes in electrochemical systems. It covers the fundamental concepts of the thermodynamics and kinetics of electrochemical systems. It delivers the required knowledge to conduct electrochemical techniques involving step, sweep and impedance. It discusses the working principles of electrochemical energy conversion and storage systems such as, batteries, supercapacitors, and fuel cells. It also covers the application of the characterization techniques to electrochemical systems.