Polymer based solid complexes for electrolytes in sodium ion battery applications

Abstract

There is a need to find an alternative for lithium in electrochemical cells due to its limited availability and increasing cost. Sodium is a good replacement to Lithium. Studies carried out using solid polymer electrolyte forms the theme of the paper. Solid polymer electrolytes (SPEs) are better than liquid electrolytes as they can be safely shipped and stored. Internal shorting problems are less compared to liquid ones. Morphological studies of SPE film were carried out using XRD and FTIR. The ionic conductivity is analyzed from the transport number calculated using Wagner's method. The obtained ionic conductivity is around 1.121 x 10 -6 S cm-1. The electrochemical stability of SPE films estimated using Cyclic voltammetry studies.