| abstract |
In some embodiments, an electrolyte solution includes a solvent; an electrolyte salt; and a salt represented by the following general formula (I) : [HxL] x+ [FnA - ]x where: A is boron or phosphorous, F is fluorine, H is an acidic hydrogen, L is an aprotic organic amine, n is 4 or 6, when n = 4, A is boron, and when n = 6, A is phosphorous, x is an integer from 1-3, and at least one N atom of the aprotic organic amine is protonated by an acidic hydrogen atom. The salt is present in the electrolyte solution in an amount of between 0.1 and 5 wt.%, based on the total weight of the electrolyte solution. |