CPC H01G 9/035 (2013.01) [H01G 9/028 (2013.01); H01G 9/048 (2013.01)] | 9 Claims |
1. An electrolytic capacitor comprising a capacitor element and an electrolytic solution, the capacitor element including: an anode body including a dielectric layer; a cathode body; and a solid electrolyte in contact with the dielectric layer, wherein:
the electrolytic solution includes a solvent, a solute, and a polymer component,
the solvent includes an ethylene glycol compound,
the polymer component includes polyalkylene glycol,
the polyalkylene glycol includes an oxyethylene-oxypropylene copolymer,
a molar ratio m/n of oxyethylene units to oxypropylene units in the polyalkylene glycol is greater than 1 and less than or equal to 5, and
a number-average molecular weight of the oxyethylene-oxypropylene copolymer ranges from 1,000 to 5,000, inclusive.
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