Manufacturing method for solid-liquid mixed type aluminum electrolytic capacitor

An aluminum electrolytic capacitor, electrolytic capacitor technology, applied in electrolytic capacitors, capacitors, circuits, etc., can solve the problems of low ESR, leakage and short circuit, low repair oxide film, etc., to achieve excellent overall performance, avoid excessive leakage or short circuit bad. Effect

Active Publication Date: 2014-02-05
ZHUHAI LEAGUER CAPACITOR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Compared with ordinary leaded aluminum electrolytic capacitors, conductive polymer solid aluminum electrolytic capacitors are characterized by extremely low ESR and excellent high-frequency filtering performance. In recent years, they have been rapidly applied in computer motherboards, game consoles, high-end digital products, chargers and other fields. growth; however, due to its low ability to repair the oxide film and poor leakage current performance, espec...

Method used

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  • Manufacturing method for solid-liquid mixed type aluminum electrolytic capacitor

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Comparison scheme
Effect test

Embodiment 1

[0023] This embodiment is a liquid aluminum electrolytic capacitor, and its preparation steps are as follows:

[0024] ① Rivet the aluminum foil with the guide pin of the nailing machine and wind the anode aluminum foil, cathode aluminum foil and electrolytic paper into a core package. The electrolytic paper is between the anodized aluminum foil and the cathodic The cathode foil should be wide; the length should be longer than the overlapping part of the anodized aluminum foil and the cathode foil to prevent short circuit of the core package;

[0025] ② Vacuum impregnate the wound core with electrolyte, and the electrolyte adopts wide temperature electrolyte;

[0026] ③ Assemble the core package impregnated with the electrolyte into the shell and rubber plug;

[0027] ④ Aging and sorting the assembled bare casing according to the process;

[0028] ⑤ Print and pack the selected finished products after testing.

Embodiment 2

[0030] This embodiment is a solid aluminum electrolytic capacitor, and its preparation steps are as follows:

[0031] ① The guide pin is riveted on the aluminum foil by a nail coiler, and the anode aluminum foil, cathode foil, and release paper are wound into a core package. width;

[0032] ② Spot weld the wound core package on the iron bar, and pre-install the rubber plug before spot welding;

[0033] ③ Carry out chemical formation and carbonization treatment on the core bag;

[0034] ④ The processed core contains impregnated thiophene monomer and ferric p-toluenesulfonate oxidant;

[0035] ⑤ Polymerized and dried or directly impregnated with polythiophene suspension and dried;

[0036] ⑥ Aging sorting after assembly with shell;

[0037] ⑦ Test, package and print the selected finished products.

Embodiment 3

[0039] This embodiment is a solid-liquid hybrid aluminum electrolytic capacitor, which includes the following steps:

[0040] ① The guide pin is riveted on the aluminum foil by a nail coiler, and the anode aluminum foil, cathode foil, and release paper are wound into a core package. The release paper is placed between the anodized aluminum foil and the cathode foil. The above anodized aluminum foil is wide, and the release paper is wood pulp fiber material or synthetic fiber material;

[0041] ② Spot weld the core pack on the stainless steel iron bar and charge and repair the oxide film in the forming solution;

[0042] ③ Rinse and dry the charged core pack;

[0043] ④ The dried core contains an impregnation suspension, which is a polymer material with polythiophene or polypyrrole or polyaniline as the main component;

[0044] ⑤ impregnate the impregnated core package into electrolyte solution after drying, the electrolyte solution includes solvent, solute and additive, and ...

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Abstract

The invention discloses and provides a manufacturing method for a solid-liquid mixed type aluminum electrolytic capacitor. The manufacturing method is quite low in ESR and good in high frequency filtering performance, can be used for achieving certain oxide film repair ability, improves voltage of the electrolytic capacitor and reduces leak current. The manufacturing method includes the following steps that an isolating paper roll is interfered between anodizing aluminum foil and cathode foil to be wound into a core package, wherein the anodizing aluminum foil is well riveted with an outgoing line; the core package is welded on a stainless steel bar in a spot welding mode, and an oxide film is charged and repaired in formation liquid; the charged core package is rinsed thoroughly and dried; the dried core package is impregnated in turbid liquid; the impregnated core package is dried and then is impregnated in electrolyte solution; the impregnated product is provided with a rubber plug and sealed with an outer shell to form a semi-finished capacitor; aging and charging are carried out on the sealed semi-finished capacitor to form the finished capacitor.

Description

technical field [0001] The invention relates to a preparation method of a solid-liquid mixed type aluminum electrolytic capacitor. Background technique [0002] Compared with ordinary leaded aluminum electrolytic capacitors, conductive polymer solid aluminum electrolytic capacitors are characterized by extremely low ESR and excellent high-frequency filtering performance. In recent years, they have been rapidly applied in computer motherboards, game consoles, high-end digital products, chargers and other fields. growth; however, due to its low ability to repair the oxide film and poor leakage current performance, especially the varieties with a voltage above 20V are prone to leakage and short-circuit failure, which greatly limits the further rapid development of the solid aluminum electrolytic capacitor market, so if it can be invented A capacitor that not only has the advantages of low impedance and high ripple of a solid aluminum electrolytic capacitor, but also can reduce ...

Claims

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Application Information

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IPC IPC(8): H01G9/00H01G13/04
Inventor 吉泽锋
Owner ZHUHAI LEAGUER CAPACITOR
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