Advancements in Electrochemical Energy Storage: Innovations in Batteries and Supercapacitors

Electrochemical energy storage systems, such as batteries and supercapacitors, form the most significant parts of today's energy infrastructure. This review includes state-of-the-art electrode materials, electrolytes, and cell design and takes an in-depth look at their impact on the performance metrics for energy density, power density, and cycle life. We will paint a picture of the intrinsic mechanisms working together to drive advances in storage capacity, charge/discharge rate capabilities, and longevity by deconstructing these major elements in an energy storage device. We also look into the most meaningful developing technologies and trends holding promise for increased efficiency and sustainability of electrochemical energy storage technologies, complemented by observations on their potential applications and a pathway to further development.