摘要:
The invention relates to a method for producing electrolyte capacitors having low equivalent serial resistance and low residual current for high nominal voltage, electrolyte capacitors which are produced according to said method, and to the use of said type of electrolyte capacitors.
摘要:
A porous aluminum electrode (10) has a porous layer (30) formed by sintering aluminum powder on the surface of an aluminum core (20). The porous aluminum electrode (10), when subjected to a forming to a voltage of 200V or more, is boiled and then subjected to a first forming process in which forming is performed in an aqueous solution of ammonium adipate at a temperature of 80°C or below and a second forming process in which forming is performed in a boric acid aqueous solution. When heat depolarization is first carried out, washing with water is performed for five minutes or more before heat depolarization; therefore, the porous layer (30) is not destroyed.
摘要:
Preparing electrolyte capacitors comprises anodically oxidizing a porous electrode body of an electrode material to form a dielectric, which is coated on the electrode material; applying a dispersion containing at least an electrically conductive polymer particle and a dispersing agent on the porous body containing the porous electrode body; forming a solid electrolyte, in which the dielectric surface is partially or totally coated by the dispersion agent; at least partially removing the dispersion agent and hardening the obtained components. Preparing electrolyte capacitors comprises anodically oxidizing a porous electrode body of an electrode material to form a dielectric, which is coated on the electrode material; applying a dispersion containing at least an electrically conductive polymer particle and a dispersing agent on the porous body containing the porous electrode body; forming a solid electrolyte, in which the dielectric surface is partially or totally coated by the dispersion agent; at least partially removing the dispersion agent and hardening the obtained components; where the anodic tension in the anodic oxidation of the porous electrode body is greater than 30 V and the average diameter of the conductive polymer particle is 1-100 nm. Independent claims are included for: (1) an electrolytic capacitor, obtained by the above process; and (2) an electronic circuit comprising the electrolytic capacitor.
摘要:
An electrolytic capacitor is provided having an inner case housing a capacitor element and an electrolyte, which is sealed by an inner cap insulated from the body of the inner case by a gasket, with the anode terminal of the capacitor element connected to the inside face of the inner cap and an anode lead connected to the outside face of the inner cap. The inner case is placed in an outer case having a sleeve surrounding the body of the inner case and an outer cap with a hermetic seal overlaying the inner cap. An insulating spacer is positioned between the inner cap and the outer cap, whereby the spacer resists movement of the inner cap, thereby preventing outward expansion of the inner case, which otherwise might lead to failure, especially at relatively high operating temperatures.
摘要:
An aluminum electrode in which a porous layer made of a sintered layer of aluminum powder having an average particle diameter of 1 µm to 10 µm is laminated in a thickness of 150 µm to 3000 µm on a surface of an aluminum core material is produced by chemical formation to produce an anode for an electrolytic capacitor. In this process, an organic acid immersion step of immersing the aluminum electrode in an organic acid aqueous solution containing dodecanoic acid, benzoic acid, propanedioic acid, butanedioic acid, (E)-2-butenedioic acid, 2-hydroxypropane-1,2,3-tricarboxylic acid, (E)-1-propene-1,2,3-tricarboxylic acid, or the like is carried out after a pure water boiling step and before a chemical formation step. In the chemical formation step, a phosphoric acid immersion step of immersing the aluminum electrode in an aqueous solution containing phosphate ions is carried out one or more times in the course of raising a film withstand voltage to a chemical formation voltage.
摘要:
Provided is a method of producing a porous aluminum object having a large surface area. The method of producing a porous aluminum object according to the present invention includes: a step of producing an aluminum alloy cast body having a solidified structure including an α-Al phase 11 and a second phase 12 formed so as to be continuously intertwined with the α-Al phase by casting and solidifying an aluminum alloy; and a step of producing a porous aluminum object having a large number of cavities communicating from the surface to an inside by bringing the aluminum alloy cast body as a precursor into contact with an elution solution capable of eluting the second phase to elute the second phase 12 of the solidified structure in the precursor.
摘要:
Die Erfindung betrifft ein Verfahren zur Herstellung von Elektrolytkondensatoren mit niedrigem äquivalenten Serienwiderstand und niedrigem Reststrom für hohe Nennspannungen, nach diesem Verfahren hergestellte Elektrolytkondensatoren sowie die Verwendung solcher Elektrolytkondensatoren.