An Electric Double-layer Capacitor with High Performance at -80 °C

Key Points

• The aim is to develop electric double-layer capacitors with high energy density for use in ultralow temperatures.
• Examined different electrolytes and electrodes suitable for extreme conditions.
• Conducted performance assessments at -80 °C.
• Analyzed energy density and efficiency of the capacitors.
• Identified optimized materials for EDLCs at ultralow temperatures.
• Achieved significant energy density improvements compared to existing models.