The Roles of Deep Eutectic Solvents in Batteries for Sustainable Energy Storage

Abstract

The escalating demand for sustainable and efficient energy storage solutions has catalyzed the exploration of advanced materials and technologies in battery systems. Deep Eutectic Solvents (DES), a novel class of ionic liquids, have emerged as promising candidates due to their unique physicochemical properties, including low volatility, high thermal stability, and tunable solvation capabilities. This paper investigates the roles of DES in enhancing the performance and sustainability of batteries, particularly focusing on lithium-ion and sodium-ion technologies. DES-based electrolytes offer significant advantages, such as improved ionic conductivity and enhanced electrochemical stability, which are critical for the longevity and efficiency of battery systems. Furthermore, the eco-friendly nature of DES, derived from biodegradable and non-toxic components, aligns with the overarching goal of developing green and sustainable energy storage solutions. This study synthesizes recent advancements in DES research, evaluates their practical applications in current battery technologies, and discusses future directions for integrating DES in next-generation energy storage systems. The findings underscore the potential of DES to revolutionize battery technology, contributing to a sustainable energy future through enhanced battery performance and reduced environmental impact.