ELECTROLYTIC SOLUTION FOR ELECTROLYTIC CAPACITOR, AND ELECTROLYTIC CAPACITOR USING SAME

摘要

Disclosed are: an electrolytic solution for an electrolytic capacitor, which exhibits high conductivity and high spark voltage at the same time; and an electrolytic capacitor produced using the electrolytic solution. Specifically disclosed is an electrolytic solution for an aluminum electrolytic capacitor, which comprises electrolytes (C) comprising at least one anion (L) selected from the group consisting of the components (L1) to (L8) and an ammonium cation (B) in an aprotic solvent (A), wherein the component (L1) is a borate anion, the components (L2) to (L4) are specific boronate anions, the components (L5) to (L6) are complex anions each composed of a specific boronate anion and an alcohol, the component (L7) is a complex anion composed of boric acid and a polyhydric alcohol and having a specific structure, and the component (L8) is a complex anion composed of boric acid and a carboxylic acid compound and having at least one hydroxyl group.