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Solid-liquid hybrid capacitor and preparation method thereof

A technology of solid-liquid mixing and capacitors, which is applied in the manufacture of electrolytic capacitors, capacitors, electrolytic capacitors, etc., can solve the problems such as the difficulty of impregnation steps, achieve the effect of reducing the difficulty of impregnation and expanding the upper limit of size

Active Publication Date: 2021-11-02
NANTONG JIANGHAI CAPACITOR CO LTD
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  • Abstract
  • Description
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Problems solved by technology

[0005] The problem solved by the present invention is that the impregnation step in the preparation process of solid-liquid hybrid capacitors is relatively difficult

Method used

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  • Solid-liquid hybrid capacitor and preparation method thereof

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preparation example Construction

[0029] The preparation method of existing solid-liquid hybrid capacitor comprises the following steps:

[0030] S10: cutting the positive electrode foil, the negative electrode foil and the electrolytic paper to a preset width;

[0031] S20: rolling the positive electrode foil, the negative electrode foil and the electrolytic paper into a core package;

[0032] S30: forming the core package to obtain the formed core package;

[0033] S40: impregnating the formed core package under pressure to obtain the impregnated core package;

[0034] S50: drying the impregnated core package to obtain a dried core package;

[0035] S60: containing the dried core with an electrolyte to obtain a core package impregnated with the electrolyte;

[0036] S70: Assemble the core package impregnated with the electrolyte, the aluminum case and the leather plug to obtain a semi-finished capacitor;

[0037] S80: charging and aging the semi-finished capacitor to obtain a solid-liquid hybrid capacito...

Embodiment 1

[0070] This embodiment provides a method for preparing a 25V2200 16*30 solid-liquid hybrid capacitor, which includes the following steps:

[0071] S1: Cut the negative electrode foil to a width of 21 mm, and the electrolytic paper to a width of 24 mm.

[0072] S2: Cut the positive electrode foil to a width of 21mm. Before winding, it goes through the formation tank for two formations. The first formation energization voltage is 0.5 times the positive electrode foil voltage (22V), and the time for energization and formation restoration is 3 minutes; The secondary formation energization voltage is positive electrode foil voltage +1VF (46V), and the time for energization and formation repair is 3 minutes; the formation liquid is ammonium adipate aqueous solution with a mass concentration of 8%; after the formation of the positive electrode foil, the positive electrode after formation is obtained foil;

[0073] S3: Roll the negative electrode foil, electrolytic paper and the form...

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Abstract

The invention provides a solid-liquid hybrid capacitor and a preparation method thereof. The preparation method comprises the following steps: forming a positive electrode foil; rolling a negative electrode foil, electrolytic paper and the formed positive electrode foil into a core package, and spraying filling liquid to the surface of the aluminum foil in a rolling process; performing pressure impregnation on the core package through dispersion liquid; drying the impregnated core package; immersing the dried core package in an electrolyte; assembling the core package having been impregnated with the electrolyte; and charging and aging the semi-finished capacitor to obtain the solid-liquid hybrid capacitor. According to the preparation method of the solid-liquid hybrid capacitor provided by the invention, aluminum foil corrosion holes are soaked in the dispersion liquid in advance, so particles in the dispersion liquid can enter the holes of the positive electrode foil, impregnation difficulty is reduced, the size upper limit of the solid-liquid hybrid capacitor is expanded, and the preparation of the solid-liquid hybrid capacitor with a large shell number becomes possible.

Description

technical field [0001] The invention relates to the technical field of capacitor preparation, in particular to a solid-liquid hybrid capacitor and a preparation method thereof. Background technique [0002] As a basic component in circuit design, capacitors are widely used. According to the selected medium, capacitors can be divided into various types such as aluminum electrolytic capacitors, ceramic capacitors, film capacitors, tantalum capacitors, super capacitors, etc. Among them, aluminum electrolytic capacitors occupy a large market due to their high cost performance and high capacitance. market share. [0003] Aluminum electrolytic capacitors can be divided into three types: liquid capacitors, solid capacitors and solid-liquid hybrid capacitors. In recent years, because solid-liquid hybrid capacitors combine the advantages of solid capacitors and liquid High temperature, long life, moisture resistance, vibration resistance and other advantages, gradually become the d...

Claims

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Application Information

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IPC IPC(8): H01G9/00H01G9/025H01G9/035H01G9/04
CPCH01G9/035H01G9/04H01G9/0029H01G9/025Y02E60/13
Inventor 景俊峰丰骏丁继华徐永华成俊烽沙雪飞
Owner NANTONG JIANGHAI CAPACITOR CO LTD
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