Polycarbonates as alternative electrolyte host materials for solid-state sodium batteries

This paper describes the first implementation of the aliphatic polycarbonate PTMC- that has previously been successfully applied to lithium polymer batteries- as a non-polyether host matrix in solid-state sodium batteries. Despite higher glass transition temperatures of PTMC-NaTFSI and PTMC-NaClO4 electrolytes than their Li-containing counterparts, the ionic conductivities were found to be similar to the equivalent Li salt electrolytes. Finally, the functionality of PTMC-NaTESI was demonstrated through cycling of Na/Prussian blue half-cells displaying high discharge capacities and limited polarization at C/10 and 60 degrees C. (C) 2017 Elsevier By. All rights reserved.