Aluminum electrolytic capacitor and electrode architecture for aluminum electrolytic capacitor

Abstract

The invention provides an aluminum electrolytic capacitor and electrode architecture for the aluminum electrolytic capacitor. The electrode architecture is formed through the following steps: forming a coating containing organic oxide (composed of aluminum powder and aluminum alloy powder and valve metal), an organic binding agent and an organic solvent on an aluminum substrate; generating a sintering layer by performing drying, heating and sintering engineering, performing reduction heating engineering, and then performing the anode oxidation to manufacture the electrode architecture for high-capacity anode and negative foil for the aluminum electrolytic capacitor.

Description

technical field

[0001] The present invention relates to a method for manufacturing an electrode structure used as an electrode material for an aluminum electrolytic capacitor, an electrode structure, and an aluminum electrolytic capacitor including the electrode structure. technical background

[0002] A capacitor has two electrodes, a positive and a negative. The positive electrode material of the capacitor is a valve metal such as aluminum or tantalum that can form an insulating oxide film on the surface. Here, the so-called valve metal is a metal covered with an oxide film by anodic oxidation, for example, there are aluminum, tantalum, niobium, titanium, hafnium, and the like.

[0003] The negative electrode material is electrolyte, inorganic semiconductor, organic conductive material or metal thin film and the like. When the negative electrode material is an electrolytic solution, aluminum foil with an enlarged surface area is often used for the negative electrode term...