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Processing liquid and solid-state electrolytic capacitor with same

A technology of solid electrolytic capacitors and treatment liquids, applied in solid electrolytic capacitors, capacitor electrodes, capacitor parts, etc., can solve the problems of weak repair ability of positive oxide film defects, high cost of dispersion liquid research and development, cumbersome production process, etc., to achieve Improve the capacity extraction rate, avoid instantaneous high voltage and high current, and solve the effect of insufficient withstand voltage

Inactive Publication Date: 2017-03-29
CAPXON ELECTRONIC (SHENZHEN) CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, a solid electrolytic capacitor is a dielectric, and its ability to repair defects in the positive electrode oxide film is weak
Therefore, if solid electrolytic capacitors are used in a high-temperature working environment of 85~150°C for a long time, the LC may increase, and may even cause a short circuit
[0003] At present, solid electrolytic capacitors can only produce solid electrolytic capacitors with a rated voltage of less than 100V due to the impact of the withstand voltage of the conductive polymer dispersion. liquid; but the development cost of dispersion liquid is very high and the cycle is long, and the production process is relatively cumbersome

Method used

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  • Processing liquid and solid-state electrolytic capacitor with same
  • Processing liquid and solid-state electrolytic capacitor with same
  • Processing liquid and solid-state electrolytic capacitor with same

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Embodiment 1

[0031] The treatment liquid used in the present embodiment is A treatment liquid, which includes the amount of polyethylene glycol with a molecular weight of 200, calculated by weight percentage, polyethylene glycol (PEG) 35%, ethylene glycol (EG) 15%, γ-butyrolactone 10% (GBL), ethanol 15%, water 20% and phthalic acid 5%.

[0032] In order to produce a solid electrolytic capacitor with the characteristics of high voltage, high capacity, low impedance, and small leakage current required by the present invention, the following steps are adopted in this embodiment:

[0033] A1. To make element 100, cut the positive foil 1, negative foil 2 and electrolytic paper 3 according to the designed size through a stapler, and then rivet the positive guide pin 4 and negative guide pin 5 on the positive foil 1 and negative foil 2 respectively, Then the positive foil 1 and the negative foil 2 are sandwiched with the electrolytic paper 3 and wound into a circle, and finally a high-temperature...

Embodiment 2

[0039] The steps and principles of this embodiment are basically the same as those of Embodiment 1, except that the treatment liquid used in this embodiment is B treatment liquid, which includes polyethylene glycol with a molecular weight of 600, calculated by weight percentage, polyethylene glycol Glycol (PEG) 35%, ethylene glycol (EG) 15%, γ-butyrolactone 10% (GBL), ethanol 15%, water 20% and phthalic acid 5%.

Embodiment 3

[0041] The steps and principles of this embodiment are basically the same as those of Embodiment 1, except that the treatment liquid used in this embodiment is C treatment liquid, which includes polyethylene glycol with a molecular weight of 1000, calculated by weight percentage, polyethylene glycol Glycol (PEG) 35%, ethylene glycol (EG) 15%, γ-butyrolactone 10% (GBL), ethanol 15%, water 20% and phthalic acid 5%.

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Abstract

The invention proposes a processing liquid, and relates to the technical field of a solid-state electrolytic capacitor. The processing liquid comprises a solute and a solvent, wherein the solute is an organic or inorganic acid compound, the solvent comprises a water polymer material and an organic solvent, the organic or inorganic acid compound is selected from one or more of phosphoric acid, boric acid, benzoic acid, adipic acid, azelaic acid, sebacic acid, isophthalic acid, phthalic acid, maleic acid, benzene sulfonic acid and citric acid, and the water polymer material is selected one or more of polyethylene alkylene glycol, polyvinyl alcohol, polyethylene glycol glyceryl alcohol ester, polyethylene glycol glyceryl alcohol ester, polyethylene glycol sorbitol ether, polyethylene glycol, polybutylene glycol, polyethylene glycol and polyethylene oxide which has non-volatile characteristic. The processing liquid and a traditional dispersion liquid are used in a matching way, thus, the development of the dispersion liquid is prevented, the production period is shortened, and the cost is reduced.

Description

technical field [0001] The invention relates to the technical field of solid electrolytic capacitors, in particular to the technical field of aluminum electrolytic capacitors, in particular to a treatment liquid and a solid electrolytic capacitor using the treatment liquid. Background technique [0002] With the digitalization of electronic products, those current output circuits, especially in the fields of AV equipment and automotive devices, are increasingly demanding high-reliability solid electrolytic capacitors, requiring their performance such as miniaturization, high capacity, low ESR and low LC. , There are also special requirements for short-circuit resistance. Compared with solid electrolytic capacitors, liquid electrolytic capacitors have the advantage that the electrolyte can repair the defects of the positive oxide film and inhibit the occurrence of short circuits. However, a solid electrolytic capacitor is a dielectric, and its ability to repair defects in the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G9/15H01G9/04H01G9/028
CPCH01G9/028H01G9/04H01G9/151
Inventor 熊军林金村
Owner CAPXON ELECTRONIC (SHENZHEN) CO LTD
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