ELECTROLYTIC SOLUTION, BATTERY CELL, PREPARATION METHOD THEREFOR, BATTERY, AND ELECTRICAL DEVICE

An electrolytic solution, a battery cell, a preparation method therefor, a battery, and an electrical device. The electrolytic solution includes an electrolyte salt and an additive, the electrolyte salt includes a first electrolyte salt shown in formula (1), the additive includes a first additive shown in formula (2), the content by weight of the first electrolyte salt in the electrolytic solution is denoted as x, the content by weight of the first additive in the electrolytic solution is denoted as y, both of which are calculated based on the total weight of the electrolytic solution, and 50≤x/y≤500.