Lewis acid: electrochemical cell containing Lewis base composite electrolyte additive

摘要

The electrolyte solution includes a solvent, an electrolyte salt, and an LA: LB composite represented by the following general formula I: [(FnA) x-L] (I). In Formula I, A is boron or phosphorus, F is fluorine, L is an aprotic organic amine, n is 3 or 5, and when n = 3, A is boron, n = In the case of 5, A is phosphorus, x is an integer of 1 to 3, and at least one N atom of the aprotic organic amine L is directly bonded to A. The amount of LA: LB composite present in the solution is 0.01 to 5.0% by weight based on the total weight of the electrolyte solution. [Selection figure] None