Insights and Applications of Electrochemical Techniques and Devices in Rechargeable Batteries

Driven by the global demand for renewable energy, electric vehicles, and efficient energy storage, battery research has experienced rapid growth, attracting substantial interest from researchers across various disciplines. Consequently, the need for proficiency in electrochemical techniques has become increasingly critical. However, many researchers entering this expanding field lack a solid theoretical foundation in electrochemistry. This review seeks to bridge this gap by offering a comprehensive guide that not only elucidates fundamental electrochemical principles but also highlights their practical applications in battery research. It serves as an introductory resource for newcomers while offering a detailed reference for experienced scientists who are aiming to integrate advanced electrochemical techniques into their work. Furthermore, we emphasize the need for a paradigm shift in electrochemical characterization. By leveraging emerging tools such as in situ impedance monitoring and artificial intelligence, researchers can achieve deeper insights into battery performance and failure mechanisms, ultimately driving advancements in the field.