Electrolyte for electrolytic capacitor and electrolytic capacitor using the same

摘要

An electrolyte for an electrolytic capacitor which is high in electrolytic conductivity, excellent in heat stability and high in withstand voltage. An electrolyte for an electrolytic capacitor comprising a tetrafluoroaluminate ion; and an electrolyte for an electrolytic capacitor containing a salt and a solvent, characterized in that electrolytic conductivity X (mS.cm-1) at 25° C. and withstand voltage Y (V) of a capacitor satisfy the relationships of formulae (I): Y>=-7.5X+150, and X>=4, Y>0.