Hierarchical Aerogel-Confined Deep Eutectic Electrolytes for Complete Water Immobilization and High-Performance, Freeze-Tolerant Supercapacitors

Key Points

• This research aims to investigate the effectiveness of deep eutectic solvents in enhancing supercapacitor performance under freezing conditions.
• Utilized hierarchical aerogels to confine deep eutectic solvents.
• Conducted electrochemical tests to evaluate performance metrics of supercapacitors.
• Assessed stability and conductivity of the confined electrolytes under various temperature conditions.
• Supercapacitors exhibited high electrochemical performance even at low temperatures.
• Deep eutectic solvents provided enhanced ionic conductivity and stability.
• The structure of the aerogel effectively immobilized the electrolytes, preventing leakage and enhancing overall device reliability.