Electrolytic capacitor

An electrolytic capacitor formed by winding a cathode foil, first and second anode foils and first, second, third and fourth separators each having a belt-like form, and comprising:

• a capacitor element formed by:
• arranging the first anode foil on a first side with respect to said cathode foil such that said first anode foil is opposed to a first portion of said cathode foil extending from a longitudinally central portion to a first end on one end side,
• arranging the second anode foil on a second side opposite to said first side with respect to said cathode foil such that said second anode foil is opposed to a second portion of said cathode foil extending from said longitudinally central portion to a second end on the other end side,
• interposing the first separator between said first portion of said cathode foil and said first anode foil,
• arranging the second separator on said second side with respect to said cathode foil such that said second separator is opposed to said first portion of said cathode foil,
• interposing the third separator between said second portion of said cathode foil and said second anode foil,
• arranging the fourth separator on said one side with respect to said cathode foil such that said fourth separator is opposed to said second portion of said cathode foil, and
• winding, in a predetermined direction, said cathode foil, said first and second anode foils, and said first, second, third and fourth separators with said first and second portions of said cathode foil opposed to each other, said winding starting from a position corresponding to said longitudinally central portion,