| abstract |
(57) [Problem] To provide a flat type electrolytic capacitor having high flame retardancy. SOLUTION: The flat electrolytic capacitor of the present invention is characterized in that the electrolytic solution for the electrolytic capacitor contains ethylene glycol, a polyhydric alcohol complex compound of boric acid or a salt thereof, an organic acid or a salt thereof, a monoalkyl phosphate ester and water, Since the case is made of an aluminum-manganese alloy, it has high flame retardancy and good high-temperature life characteristics. |