614 results about "Valve metal" patented technology

Pressed material such as anodes are described and formed from oxygen reduced oxide powders using additives, such as binders and / or lubricants. Methods to form the pressed material are also described, such as with the use of atomizing, spray drying, fluid bed processing, microencapsulation, and / or coacervation.

A method for increasing the surface area of foil electrodes of electrolytic capacitors. A valve metal is deposited by evaporation on a valve metal foil in a low pressure inert atmosphere including oxygen at a pressure one to two orders of magnitude lower than the pressure of the inert gas. The resulting surface is fractal-like. The foil thus treated is suitable as such for use as a cathode. Prior to anodization to produce an anode, a discontinuous layer of a valve metal oxide is deposited on the foil, to preserve the high surface area of the fractal-like surface and otherwise promote the formation of a dielectric coating whose interface with the metal foil has a high surface area.

The present invention relates to an electrode metal material for batteries, capacitors, etc, used in contact with non-aqueous electrolyte, and particularly to a capacitor formed of the electrode metal material, and provides a valve metal material capable of decreasing the internal resistance of the capacitor. The electrode metal material comprises a valve metal material and numerous carbon particles included in the surface of the valve metal material. The carbon particles are further fixed in the surface of the valve metal material so as to expose to the surface. The electrode metal material is coated with an activated carbon layer and used as a double-layer electrode for an electric double-layer capacitor. The carbon particles included in the surface ensure conduction between the activated carbon layer and the valve metal material. With this configuration, even if the surface of the valve metal material is oxidized, the internal resistance of the electrode is not decreased, the internal resistance of the capacitor is decreased, and the capacitance of the capacitor is increased.

In a capacitor 10, a first electrode 21, a valve metal layer 22, a dielectric layer 23, a chemical polymerization film 24 (a first solid electrolytic layer), a conductive organic material layer 61, an electrolytic polymerization film 25 (a second solid electrolytic layer) and a second electrode 31 are provided on a base material 11, and the conductive organic material layer 61 is obtained by applying and caking a paste-like conductive organic material 60 onto the chemical polymerization film 24.

A miniature solid electrolytic capacitor is provided, which is suitable for being disposed within an electrically insulating layer, and is connected to other component using an electrically conductive adhesive with a connection resistance at an anode low and with connection reliability improved. Specifically, the electrolytic capacitor includes a valve metal element for an anode 10 having a capacitor forming part 10A and an electrode lead part 10B, a dielectric oxide film 11 formed on the valve element, a solid electrolyte layer 12 formed on the dielectric oxide film 11 and a charge collecting element for a cathode 13 formed on the solid electrolyte layer 12, wherein at least one through hole 15 is formed in the electrode lead part 10B so as to expose a core 10C of the valve metal element, and an exposed portion 10D of the core is used for connecting portion.