Towards Safer Electrolytes: Comparing the Air Stability and Electrochemical Properties of NaPF6, NaTFSI and NaB(hfip)4•DME for Sodium-Ion Batteries

Key Points

• The research aims to assess the air stability and electrochemical properties of various electrolytes for sodium-ion batteries.
• Investigated NaPF6, NaTFSI, and Na[B(hfip)4]·DME as electrolytes.
• Measured air stability under controlled conditions.
• Evaluated electrochemical performance through charge and discharge cycles.
• NaTFSI and Na[B(hfip)4]·DME demonstrated better air stability compared to NaPF6.
• Electrochemical tests revealed higher capacity and stability for NaTFSI and Na[B(hfip)4]·DME.
• Sodium-ion batteries using these electrolytes show improved performance, indicating their potential for sustainable applications.