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Conductivity composite material and capacitor

A composite material, conductive polymer technology, applied in conductive materials, conductive materials, solid electrolytic capacitors, etc., can solve the problems of high ESR, low capacitance and high temperature stability of capacitors, and achieve enhanced adhesion and excellent stability. Effect

Inactive Publication Date: 2008-11-12
宁俊禄 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

And solve the problem of high ESR and low capacitance of the capacitor and the problem of poor high temperature stability

Method used

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  • Conductivity composite material and capacitor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0097] With 50g of polystyrenesulfonic acid-poly(3,4-ethylenedioxy)thiophene aqueous solution, 0.15g of SiO 2 Powder (aerosil, manufactured by Degussa), 50g of ethanol and 3g of ethylene glycol were mixed and stirred to obtain SiO 2Powder and mixed aqueous solution of polystyrenesulfonic acid-poly(3,4-ethylenedioxy)thiophene. After coating the mixed aqueous solution on the polyester film and drying it in an oven at 120°C for 60 minutes, the conductive thin coating film was obtained. Table 1 shows the results of evaluating the resistivity of the conductive thin coating film.

Embodiment 2

[0099] The same method as in Example 1, except that the SiO of 0.15g 2 Except for changing the powder (aerosil, manufactured by Degussa) to 0.3 g, a conductive thin coating film was produced in the same manner as in Example 1, and the resistivity of the conductive thin coating film was evaluated. The results are shown in Table 1.

Embodiment 3

[0101] The same method as in Example 1, except that the SiO of 0.15g 2 Powder (aerosil, manufactured by degussa) was changed to 0.15g of TiO 2 Except powder, all obtain TiO the same as embodiment 1 2 Powder and mixed aqueous solution of polystyrenesulfonic acid-poly(3,4-ethylenedioxy)thiophene. In the same manner as in Example 1, a conductive thin coating film was produced, and the resistivity of the conductive thin coating film was evaluated. The results are shown in Table 1.

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Abstract

A conductive composite material comprises a conductive polymer and a dielectric body with the dielectric constant above 3. The conductive composite material has the advantages of enhancing clinging performance, membrane manufacturing performance and bridging performance on a substrate, fine stability of conductivity against external environment, heat resistance and long-term stability. A solid electrolytic layer of a solid electrolytic capacitor comprises the conductive polymer and the dielectric body with the dielectric constant above 3. The solid electrolytic capacitor can get the solid electrolytic capacitor with low ESR and high capacity and the performance of the solid electrolytic capacitor can be maintained even under the condition of a high temperature.

Description

technical field [0001] The present invention relates to a conductive compound, which is used for electronic components. Background technique [0002] Conductive polymer materials are expected to be used in applications that require conductivity, conductive coatings, antistatic agents, electromagnetic wave shielding materials, transparent conductive materials, battery materials, capacitor materials, sensors, electronic equipment materials, semi-conductive materials, solar cells, Organic Light Emitting Diodes, Field Emission Displays (FED), Touch Panels, Electroluminance, Organic thin-film transistors, Electrostatic copying parts, Transfer parts, Electronic paper (epaper), Electrophotography 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 of a valve-a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B1/00H01G9/15H01G9/025C08L101/00C09D5/24
CPCH01G11/48
Inventor 宁俊禄李玉萍
Owner 宁俊禄
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