Similarly to PCL and CSSAX1, the silyl-ether based polymers exhibit low solvation of Li. This is showed as a proxy through Figure and able to wrap fully around a single Li, which would normally mean that Li is well solvated. The reason for the low solvation is likely to be that the high positive charge on the Si atom decreases the interaction strength between the surrounding oxygens and the Li ions in the system as well as the added steric hindrance of the Si substituent.