Conductive polymer composition and solid electrolyte capacitor using the same

A conductive polymer, solid electrolysis technology, used in solid electrolytic capacitors, hybrid capacitor electrodes, hybrid capacitor electrolytes, etc., can solve problems such as low performance, and achieve the effects of excellent stability, excellent ESR performance, and high conductivity

Active Publication Date: 2008-11-12
ZHENGZHOU TAIDA ELECTRONICS MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, it solves the performance of solid electrolytic capacitors using polymerized cond

Method used

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  • Conductive polymer composition and solid electrolyte capacitor using the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0102] (Synthesis of polystyrenesulfonic acid)

[0103] 5g of 3,4-ethylenedioxythiophene, 500g of 3wt% polystyrenesulfonic acid aqueous solution, 9g of sodium persulfate, and 1g of iron sulfate were dissolved in 500ml of water, and stirred for 18 hours.

[0104] Ion exchange resin was used to remove residual ions in the solution to obtain dark blue 1.6 wt% polystyrenesulfonic acid-poly(3,4-ethylenedioxy)thiophene aqueous solution.

[0105]The obtained 5g of 1.6wt% polystyrenesulfonic acid-poly(3,4-ethylenedioxy)thiophene aqueous solution, 0.1g of vitamin C and 0.5g of glycol were mixed and stirred, and then carried out in an oven at 120°C. dried to obtain a conductive coating film. Table 1 shows the results of evaluating the electrical conductivity of the conductive coating film.

Embodiment 2

[0107] 5g of 1.6wt% polystyrenesulfonic acid-poly(3,4-ethylenedioxy)thiophene aqueous solution prepared in Example 1, 0.15g of gulonic acid, and 0.3g of imidazole were mixed and stirred at 120° C. Dry in an oven to obtain a conductive coating film. Table 1 shows the results of evaluating the electrical conductivity of the conductive coating film.

Embodiment 3

[0109] 5g of the 1.6wt% polystyrenesulfonic acid-poly(3,4-ethylenedioxy)thiophene aqueous solution prepared in Example 1, 0.12g of glucosamine, and 0.2g of vinylimidazole were mixed and stirred, and heated at 120° C. drying in an oven to obtain a conductive coating film. Table 1 shows the results of evaluating the electrical conductivity of the conductive coating film.

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Abstract

The invention provides a conducting polymer composition, which contains polypyrrole and derivates thereof, polythiophene and derivates thereof, polyaniline and derivates thereof, polyacetaldehyde and derivates thereof, poly 1, 2-vinylidene thiophene and derivates thereof, and a conducting polymer compound of polysulfonic acid and conducting polymer formed by copolymers, and contains more than three hydroxy reducible compounds. The conducting polymer composition has high conductibility, and can maintain the conductibility in a high-temperature environment. A solid electrolytic capacitor contains the conducting polymer compound of the conducting polymer and the polysulfonic acid and more than three hydroxy reducible compounds in a solid electrolyte layer. The solid electrolytic capacitor has excellent ESR property and high-temperature invariability.

Description

technical field [0001] The present invention relates to a conductive polymer composition, to a solid electrolyte for use in a solid electrolytic capacitor, and to a solid electrolytic capacitor and a surface mount transmission line element using the solid electrolyte. Background technique [0002] Conductive polymer compositions including conductive polymers are expected to be used in applications requiring electrical conductivity, conductive coatings, antistatic agents, electromagnetic wave shielding materials, transparent conductive materials, battery materials, capacitor materials, sensors, electronic device materials, semi Conductive materials, xerographic parts, transfer parts, electrophotographic materials, etc. [0003] Especially in recent years, along with the digitization of electronic devices, it has been increasingly required to lower the impedance of capacitors used in high-frequency regions. In order to meet this requirement, an anode composed of a porous body...

Claims

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Application Information

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IPC IPC(8): C08L79/04C08L65/00C08L79/02C08L59/00C08L41/00H01G9/15H01G9/025H01B1/10
CPCH01G11/56H01G11/48
Inventor 李玉萍姬峰李昊
Owner ZHENGZHOU TAIDA ELECTRONICS MATERIAL TECH
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