Anhyhdrous lithium perchlorate (LiClO4, Sigma Aldrich), lithium bis(fluoromethanesulfonyl)imide (LiFSI, Sigma Aldrich), propylene carbonate (PC, Sigma Aldrich), 1,3 dioxolane (DOL, Sigma Aldrich), and dimethyl ether (DME, Sigma Aldrich) were obtained for the synthesis of 1M LiClO4 PC and 1M LiFSI DOL/DME (1:1 vol) electrolytes for solvent exchange. Bulk or spun ionogels were exchanged with the PC or DOL/DME electrolytes through a multistep process. To exchange, the gels were soaked in excess PC or DOL/DME electrolyte for a minimum of 2 hours. This was repeated three times total, each time in clean electrolyte, to ensure complete exchange. All exchange and sample preparations were performed inside an Ar glovebox. As DOL/DME and PC are soluble with the ionic liquid, no intermediate solvent was required.