Novel hybrid composites NaCF_3SO_3-PEO-NASICON for sodium ion battery applications

摘要

Na~+ ion based hybrid solid polymer electrolyte with high ionic conductivity and appreciable electrochemical stability has been reported. Addition of nano NASICON ceramic fillers [NaTi_2(PO_4)_3] in polymer electrolyte matrix leads to significant ionic conductivity enhancement. These composites have been prepared in wide composition range and exhibit thermal stability at least upto 100°C for compositions with large amount of NASICONs. A maximum ionic conductivity of 3×10~(-5) Ω~(-1)cm~(-1) is obtained at 40°C for a typical composition 10NaCF_3SO_390[0.7NTP0.3PEO]. The hybrid polymer composites are potential candidates for Na~+ ion based solid-state battery applications.