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Conductive polymer composition, solid electrolyte and solid electrolyte capacitor using the conductive polymer

A conductive polymer and solid electrolyte layer technology, applied in solid electrolytic capacitors, capacitor electrolytes/absorbents, capacitor components, etc., can solve problems such as increased resistance and low performance, and achieve excellent stability and high conductivity , The effect of excellent ESR performance

Active Publication Date: 2009-07-22
ZHENGZHOU TAIDA ELECTRONICS MATERIAL TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] The invention mainly solves the problem of high resistance of conductive polymers and significant increase of resistance at high temperature
Moreover, it solves the performance of solid electrolytic capacitors using conductive polymers, and solves the problem of low performance in high temperature environments.

Method used

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  • Conductive polymer composition, solid electrolyte and solid electrolyte capacitor using the conductive polymer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0085] Dissolve 5 g of 3,4-ethylenedioxythiophene, 50 g of a 30 wt% polystyrene sulfonic acid aqueous solution (average molecular weight: 75,000), 10 g of sodium persulfate, and 1 g of iron (III) sulfate in 1000 ml of water, and stir 18 hours.

[0086] The residual ions in the solution were removed by ion exchange resin to obtain a 1.5 wt % aqueous solution of polystyrenesulfonic acid-poly(3,4-ethylenedioxy)thiophene in dark blue.

[0087] The obtained 1.5 wt % polystyrenesulfonic acid-poly(3,4-ethylenedioxy)thiophene aqueous solution, 0.05 g of 4-nitrophenol were mixed and stirred, and then dried in an oven at 120° C. to obtain Conductive coating. The electrical conductivity of the conductive coating film was evaluated, and Table 1 shows the results.

Embodiment 2

[0089] 5g of the 1.5wt% polystyrenesulfonic acid-poly(3,4-ethylenedioxy)thiophene aqueous solution prepared in Example 1 and 0.15g of 4-nitrophenol were mixed and stirred, and then placed in an oven at 120°C. Drying was performed to obtain a conductive coating film. The electrical conductivity of the conductive coating film was evaluated, and Table 1 shows the results.

Embodiment 3

[0091] After mixing and stirring 5 g of the 1.5 wt % polystyrenesulfonic acid-poly(3,4-ethylenedioxy)thiophene aqueous solution prepared in Example 1 and 0.10 g of 4-methoxy-2-nitrophenol, It dried in a 120 degreeC oven, and obtained the electroconductive coating film. The electrical conductivity of the conductive coating film was evaluated, and Table 1 shows the results.

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Abstract

An electroconductive polymer compound contains electroconductive high molecules, polyanion and aromatic compound with at least one functional group of alkoxide, nitryl and amino. The electroconductive polymer compound has high conductivity and can even maintain the high conductivity in high temperature environment. In the solid electrolyte layers of a solid electrolytic capacitor, at least one layer contains electroconductive high molecules, polyanion and aromatic compound that has at least one functional group of alkoxide, nitryl and amino. The capacitor has excellent ESR property and stability in high temperature condition.

Description

technical field [0001] The present invention relates to conductive polymer compositions, and solid electrolytes used in solid electrolytic capacitors, and solid electrolytic capacitors and surface mount transmission line components using the solid electrolytes. Background technique [0002] Conductive polymer compositions including conductive polymers are expected to be used in: conductive applications, conductive coatings, antistatic agents, electromagnetic wave shielding materials, transparent conductive materials, battery materials, capacitor materials, sensors, electronic equipment materials, semiconductive materials , Electrophotographic parts, transfer parts, solar cells, organic light emitting diodes, field emission displays (FED), touch screens, electroluminescence, organic thin-film transistors, epaper ), electrophotographic materials, etc. [0003] In recent years, with the digitization of electronic equipment, it is increasingly required to reduce the impedance o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L79/04C08L65/00C08L79/02C08L59/00C08L39/04C08L101/06C08K5/00H01G9/028H01G9/15
Inventor 宁俊禄
Owner ZHENGZHOU TAIDA ELECTRONICS MATERIAL TECH
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