Molecularly Crowded Water-in-Salt Electrolyte Enabled All Climate Operational High Voltage MnO2 Pseudocapacitor

Puntos clave

• This research aims to evaluate the performance of a MnO2 pseudocapacitor using a unique water-in-salt electrolyte system.
• Fabrication of a symmetric pseudocapacitor supported by laser induced graphene (LIG).
• Utilization of 17 m NaClO4 water-in-salt electrolyte combined with ethylene glycol (EG).
• Assessment of electrochemical performance under varying conditions.
• Demonstrated unprecedented electrochemical performance of the pseudocapacitor with high energy efficiency.
• Showed significant enhancement in charge storage capacity compared to conventional electrolytes.
• Achieved operational capabilities across a wide range of temperatures.