Figure 1.
Thermal properties of the polyIL-in-salt systems. (a) Chemical structures of poly(diallyldimethylammonium) bis(fluorosulfonyl)imide (PDADMAFSI) and lithium (fluorosulfonyl)(trifluoromethanesulfonyl)imide (LiFTFSI). (b) Photographs of polymer electrolytes at the polyIL unit/LiFTFSI cation molar ratios of 2:1, 1:2, and 1:8. (c) DSC thermograms for polymer electrolytes with different LiFTFSI concentrations. (d) Relationship between Tg and the mole fraction of Li salt in both mixed anion system and single anion systems with either a FSI (up to 1:2) or a FTFSI anion (up to 1:8). (e) DSC thermograms of mixed anions and single FTFSI anion systems at a molar ratio of 1:8 after 5 days and 2 months.
