Solid polymer electrolyte membranes using the ?polymer-in-ceramic? approach for all-solid-state supercapacitor applications

Interesting findings on the application of NASICON structured fast ionic Li 1.3Al0.3Ti 1.7(PO4)3 (LATP) to solidstate supercapacitors have been reported. The LATP added with various solid polymer electrolytes exhibits high ionic conductivity of -10-4 0- 1 cm-1 at 40 degrees C. The supercapacitors fabricated using these electrolyte membranes display an optimized voltage window of 0-2 V at 1 mA (1.43 Ag-1). These show high specific capacitance -100 Fg- 1 with specific energy -14 Whkg- 1, specific power - 682 Wkg- 1, and coulombic efficiency >= 97% with excellent stability at least up to -2500 charge-discharge cycles. A good correlation is seen between the solid electrolyte membrane conductivity and supercapacitor performance. The performance parameters are in range with many of the gel/liquid-based electric double layer supercapacitors reported earlier.

Automated summary

Interesting findings have been reported on the application of NASICON-structured Li 1.3Al0.3Ti 1.7(PO4)3 (LATP) to solid-state supercapacitors. The addition of various solid polymer electrolytes to LATP results in high ionic conductivity. The supercapacitors fabricated using these electrolyte membranes show optimized voltage window and excellent performance parameters.