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Fabrication process of solid-state aluminum electrolytic capacitor with high capacity leading-out rate

A technology of aluminum electrolytic capacitor and preparation process, applied in solid electrolytic capacitors and other directions, can solve the problems of low capacity extraction rate, large leakage current, slow moving speed of polymer electrolyte, etc., and achieve the effect of high capacity extraction rate and low leakage current.

Inactive Publication Date: 2019-05-10
YIYANG AIHUA FUXIAN ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The existing preparation methods of solid aluminum electrolytic capacitors include cutting, nailing, welding, chemical formation, drying, pretreatment, drying, impregnation, polymerization, assembly, cleaning, aging and other processes. The existing impregnation process includes: impregnation of monomers, Oxidant: After impregnating the monomer, enter the oven to dry, impregnate the oxidant after drying, put the oxidant directly into the oven for heating and polymerization after impregnation; The aluminum shell is assembled and then aged. The product obtained by this preparation method has a large leakage current. When no current is applied, the polymer electrolyte moves slowly and cannot effectively enter the hole in the positive foil, so the capacity extraction rate is relatively low. Low

Method used

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  • Fabrication process of solid-state aluminum electrolytic capacitor with high capacity leading-out rate
  • Fabrication process of solid-state aluminum electrolytic capacitor with high capacity leading-out rate
  • Fabrication process of solid-state aluminum electrolytic capacitor with high capacity leading-out rate

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Embodiment 1

[0026] A preparation process of a solid aluminum electrolytic capacitor with high capacity extraction rate, the specific steps are as follows:

[0027] Step 1, cutting the positive foil, negative foil and release paper to the required width;

[0028] Step 2, use a stitching machine to nail the positive guide pin and the negative guide pin to the positive foil and the negative foil respectively, and wind the stapled foil and release paper into a prime;

[0029] Step 3. Weld the element on the stainless steel iron bar, and perform short circuit treatment (short circuit: after the element is nailed and rolled, the element is instantly connected to a large DC voltage, generally with a DC voltage that is twice the withstand voltage of the foil , if there is a burr that has a greater impact, the element will spark, thus picking out the element that is easy to short-circuit in the later stage);

[0030] Step 4: Carrying out chemical conversion treatment and drying the element in ste...

Embodiment 2

[0047] A preparation process of a solid aluminum electrolytic capacitor with high capacity extraction rate, the specific steps are as follows:

[0048] Step 1, cutting the positive foil, negative foil and release paper to the required width;

[0049] Step 2, use a stitching machine to nail the positive guide pin and the negative guide pin to the positive foil and the negative foil respectively, and wind the stapled foil and release paper into a prime;

[0050] Step 3: Weld the element on the stainless steel iron bar, and perform short-circuit treatment (short-circuit: after the element is nailed and rolled, the element is instantly connected to a larger DC voltage, generally using a DC voltage that is three times the withstand voltage of the foil , if there is a burr that has a greater impact, the element will spark, thus picking out the element that is easy to short-circuit in the later stage);

[0051] Step 4: Carrying out chemical conversion treatment and drying the elemen...

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Abstract

The invention discloses a fabrication process of a solid-state aluminum electrolytic capacitor with high capacity leading-out rate, relates to the field of aluminum electrolytic capacitors and aims tosolve the problem of relatively large leakage current and low capacity leading-out rate. Improvement is performed on the basis of a traditional process, a DC voltage is applied to a prime during polymerization drying after a monomer and an oxidization agent is impregnated or a macromolecule dispersion liquid is only impregnated, and grouping and aging are performed to form a product. The preparedproduct has the advantages of high capacity leading-out rate and lower leakage current.

Description

technical field [0001] The invention relates to the field of aluminum electrolytic capacitors, in particular to a preparation process of a solid aluminum electrolytic capacitor with high capacity extraction rate. Background technique [0002] A capacitor is a device that holds charges and is one of the most widely used electronic components in electronic equipment. It is widely used in DC blocking, coupling, bypass, filtering, tuning loops, energy conversion, control, etc. in circuits. With the rapid development of electronic information technology, the upgrading speed of digital electronic products is getting faster and faster. The production and sales of consumer electronic products, mainly flat-panel TVs, notebook computers, digital cameras and other products, continue to grow, which drives the growth of the capacitor industry. [0003] An aluminum electrolytic capacitor is a common capacitor, including an aluminum case, a core package, a plastic cover, and positive and n...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G9/15
Inventor 余铁松姚兴旺邹志平周世贤
Owner YIYANG AIHUA FUXIAN ELECTRONICS
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