Topic: Supercapacitor Electrolytes: Design, Mechanisms, and Applications

Supercapacitors have emerged as vital components in modern energy storage systems due to their high power density, fast charging/discharging capabilities, and long cycle life. Among the various components of a supercapacitor, the electrolyte plays a critical role in determining its overall performance, safety, and energy efficiency. This special issue focuses on the latest advances in the design, understanding, and practical implementation of electrolytes for supercapacitors.

The issue welcomes original research and review articles that explore novel electrolyte systems, including aqueous, organic, ionic liquid, solid-state, and hybrid electrolytes. Topics of interest include, but are not limited to, ion transport mechanisms, electrolyte–electrode interfaces, electrochemical stability windows, and innovative formulations that enhance capacitance and longevity. Contributions that link fundamental studies to practical applications—such as in flexible, wearable, or high-voltage supercapacitors—are particularly encouraged.

By bringing together interdisciplinary insights from materials science, electrochemistry, and engineering, this special issue aims to provide a comprehensive overview of the current state and future prospects of supercapacitor electrolytes. We hope it will serve as a valuable resource for researchers and engineers working in energy storage and conversion.

Supercapacitor, electrolyte design, ionic transport, electrochemical stability, energy storage, solid-state electrolytes, aqueous electrolytes, organic electrolytes, interface engineering, high-performance capacitors