DESs Based Electrolytes for Zn Batteries

The limitations of lithium-ion batteries, including the scarcity of lithium resources and the use of toxic and costly organic electrolytes, have driven the search for alternative energy storage solutions. Zinc batteries, with their abundance, lower cost, and compatibility with aqueous electrolytes, offer a promising alternative. However, the use of aqueous electrolytes in zinc batteries presents several challenges, limiting their potential for widespread adoption. Deep Eutectic Solvents (DESs) have emerged as attractive replacements for both aqueous and organic electrolytes. Their low cost, high ionic conductivity, low viscosity, and potential for high energy density make DESs suitable for zinc battery applications. DESs offer several advantages over traditional electrolytes, including improved zinc deposition reversibility, reduced hydrogen evolution, and enhanced battery capacity. Additionally, DESs can address the safety concerns associated with organic electrolytes and the limited energy density of aqueous electrolytes. This chapter provides a comprehensive overview of the current challenges in zinc battery chemistry, particularly those related to the use of aqueous electrolytes. This chapter presents a comprehensive study of DESs as promising electrolytes for zinc-based energy storage systems. By exploring the unique properties of DESs, comparing them to ionic liquids (ILs), and their application in Zinc batteries, we aim to contribute to the development of sustainable and efficient zinc battery technologies. While challenges remain, addressing them through ongoing research can pave the way for the realization of high-performance zinc batteries, contributing to a cleaner and more energy-efficient future.