| 摘要 |
PROBLEM TO BE SOLVED: To realize a winding-type electrolytic capacitor which is low in equivalent series resistance in high frequency and can withstand a soldering temperature, when it is used as a surface-mounting type. SOLUTION: This capacitor is made by winding, while interposing a separator containing an acryl fiber of 50% or higher and a poval binder of 5 to 50% between an anode foil and a cathode foil having an oxide film on their surfaces, and polypyrol, polyaniline, polythiophene, or at least one kind of the derivatives are immersed as an electrolyte.
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