IDEA #2Y7GEV N1. Polymer electrolytes based on perfluoropolyethers and dimethylsulfoxide. 25A0006

1. The chemical and thermal stability of perfluorpolyethers impart high chemical and thermal stability to the polymer electrolytes. 2. The cryodepressant properties of DMSO enable the use of the polymer electrolytes in very cold climates by lowering their glass transition temperature. 3. The ionic conductivity of a dissolved sodium salt (NaTFSI) is as high as 8.0∙10^(-4) S∙〖cm〗^(-1) at room temperature. 4. The polymer electrolytes are suitable for employment in sodium batteries for stationary applications.