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A kind of solid-liquid hybrid capacitor and its preparation method

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

Active Publication Date: 2022-06-17
NANTONG JIANGHAI CAPACITOR CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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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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  • A kind of solid-liquid hybrid capacitor and its preparation method

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preparation example Construction

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

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

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

[0032] S30: Forming the core pack to obtain the formed core pack;

[0033] S40: performing pressure impregnation on the formed core pack to obtain an impregnated core pack;

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

[0035] S60: the dried core is impregnated with the electrolyte to obtain the core package impregnated with the electrolyte;

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

[0037] S80: Charge and age the semi-finished capacitor to obtain a solid-liquid hybrid capacitor.

[0038] Since th...

Embodiment 1

[0070] This embodiment provides a preparation method of 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 cut the electrolytic paper to a width of 24 mm.

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

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

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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 the positive electrode foil; rolling the negative electrode foil, the electrolytic paper, and the formed positive electrode foil into a core package, and during the winding process, the filling liquid is sprayed onto the surface of the aluminum foil; the core package is pressurized and impregnated with the dispersion liquid; the impregnated core package is dried; the dried The core contains an electrolyte solution; the core package impregnated with the electrolyte solution is assembled; the semi-finished capacitor is charged and aged to obtain a solid-liquid hybrid capacitor. In the preparation method of the solid-liquid hybrid capacitor provided by the present invention, the corrosion holes of the aluminum foil are soaked in the dispersion liquid in advance, so that the particles in the dispersion liquid can enter the holes of the positive electrode foil, which reduces the impregnation difficulty and expands the upper limit of the size of the solid-liquid hybrid capacitor. It makes it possible to prepare large-shell solid-liquid hybrid capacitors.

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 have the advantages of high cost performance and high capacitance. market share. [0003] Aluminum electrolytic capacitors can be divided into three categories: liquid capacitors, solid capacitors and solid-liquid hybrid capacitors. The advantages of temperature, long life, humidity resistance and vibration resistance have gradually become the darling of aluminum electrolytic capacitors. [0004] At present, solid-liquid hybrid capacitors have been deeply used...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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