Electrolytic solution for electrolytic capacitor and electrolytic capacitor
AssigneeKabushiki Kaisha Toshiba
InventorHirotoshi Ikeya
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Abstract
There is proposed an electrolytic solution having a low specific resistance, a high sparking voltage and a stable sparking property. This electrolytic solution contains a quaternary ammonium salt of cyanic acid, at least one phosphorus compound selected from an organic phosphorus acid compound, phosphoric acid and salts thereof, water and an organic solvent.
Claims34
An electrolytic solution for an electrolytic capacitor, which comprises a quaternary ammonium salt of cyanic acid, at least one phosphorus compound selected from an organic phosphorus acid compound, phosphoric acid and salts thereof, water, and an organic solvent.
An electrolytic solution, which comprises a quaternary ammonium salt of cyanic acid, at least one phosphorus compound selected from an organic phosphorus acid compound, phosphoric acid and salts thereof, water, and an organic solvent, wherein said quaternary ammonium salt of cyanic acid is tetraethyl ammonium cyanate.
An electrolytic capacitor which comprises an anode made of aluminum foil strip having an oxide film on at least one surface, a cathode plate and a separator paper sheet impregnated with an electrolytic solution,
- wherein said electrolytic solution comprises a quaternary ammonium salt of cyanic acid, at least one phosphorus compound selected from an organic phosphorus acid compound, phosphoric acid and salts thereof, water, and an organic solvent.
An electrolytic capacitor which comprises an anode made of aluminum foil strip having an oxide film on at least one surface, a cathode plate and a separator paper sheet impregnated With an electrolytic solution,
- wherein said electrolytic solution comprises a quaternary ammonium salt of cyanic acid, at least one phosphorus compound selected from an organic phosphorous acid compound, phosphoric acid and salts thereof, water, and an organic solvent, wherein said quaternary ammonium salt of cyanic acid in said electrolytic solution is tetraethyl ammonium cyanate.
An electrolytic solution for an electrolytic capacitor, which comprises a quaternary ammonium salt of aliphatic oxyacid, at least one compound selected from an organic phosphine compound and a surfactant, and an organic solvent.
An electrolytic capacitor which comprises an anode made of aluminum foil strip having an oxide film on at least one surface, a cathode plate and a separator paper sheet impregnated with an electrolytic solution,
- wherein said electrolytic solution comprises quaternary ammonium salt of aliphatic oxyacid, at least one compound selected from an organic phosphine compound and a surfactant, and an organic solvent.
Dependencies are inferred from the claim text.