| 摘要 |
本发明的课题是以在维持高的初始导电率的状态且即便在周边环境的进一步高温化或多湿条件下，亦不会自密封部漏出电解液的方式，提高电解电容器的可靠性。本发明的铝电解电容器用电解液含有溶剂(A)及下述通式(1)所示的电解质(D)而成，相对于(A)及(D)的合计重量，下述通式(2)~通式(4)所示的化合物(E1)、化合物(E2)及化合物(E3)的合计含量为3重量%以下：;[式中R 1 ~R 3 表示碳数1~3的烷基，R 4 ~R 7 表示碳数1~3的烷基或氢原子，X - 表示酸(C)的阴离子];[式中R 8 、R 9 、R 11 ~R 14 为碳数1~3的烷基、碳数1~3的烷氧基、羟基或氢原子；且R 10 、R 15 为碳数1~3的烷基或氢原子]。;[In the Formula, R 1 to R 3 represents an alkyl group having a carbon quantity from 1 to 3, R 4 to R 7 represents an alkyl group having a carbon quantity from 1 to 3 or a hydrogen atom, X - represents an anion of an acid (C)] ;[In the Formula, R 8 , R 9 , R 11 to R 14 is an alkyl group having a carbon quantity from 1 to 3, an alkoxy group having a carbon quantity from 1 to 3, a hydroxyl group or a hydrogen atom; and R 10 , R 15 is an alkyl group having a carbon quantity from 1 to 3 or a hydrogen atom.] |
