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Conductive high polymer catholyte solution as well as preparation method and application thereof

A technology of conductive polymers and electrolyte solutions, applied in electrolytic capacitors, solid electrolytic capacitors, circuits, etc., can solve problems such as high ESR, achieve good impedance frequency characteristics, good high temperature thermal stability, and simple operation

Active Publication Date: 2012-10-03
CHINA ZHENHUA GRP XINYUN ELECTRONICS COMP ANDDEV CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these capacitors have the disadvantage of having an ESR of 130mΩ and higher

Method used

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  • Conductive high polymer catholyte solution as well as preparation method and application thereof
  • Conductive high polymer catholyte solution as well as preparation method and application thereof
  • Conductive high polymer catholyte solution as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] According to the proportions listed in Table 1 below, first dissolve the listed iron (III) tosylate and / or iron (III) methanesulfonate with absolute ethanol and / or n-butanol to form an oxidant solution, and then other solvents Mix, add 3,4-ethylenedioxythiophene (EDOT) monomer to form a monomer solution, then mix the prepared oxidant solution and monomer solution, and oscillate with ultrasonic waves to make the solution fully mixed evenly. 20°C) to measure the saturated vapor pressure of the mixed solution. The saturated vapor pressure of the mixed solution was measured at room temperature (20°C), and the turbidity of the polymerization liquid was measured over time. The results are shown in Table 2.

[0054] For each prepared polymerization solution, carry out the oxidative polymerization test according to the following steps respectively:

[0055] 1) Clean the 20×50mm glass slide with deionization and dry it. After the slides are cooled to room temperature, immerse ...

Embodiment 2

[0062] Select tantalum powder with a CV value of 70,000μFV / g, add anode-grade tantalum wire, press it into a 4.3×3.1×0.8 (mm) pellet, and sinter the porous anode body at a high temperature and high vacuum at 1290°C. The anode body is anodized to 54V in dilute phosphoric acid aqueous solution to form a dielectric oxide film layer, and then the root of the anode lead is coated with silica gel, and the prepared porous anode body is immersed in a solution containing a protective binder, ( The solution consists of an aqueous solution containing 1% by weight of polyvinyl alcohol and 1% by weight of ethylenediaminetetraacetic acid (EDTA), while applying a forward voltage of 20V to the anode block, and taking out the anode block after 10 minutes. Stand at room temperature for 10-15 minutes, and then dry at a temperature of 140-160°C for 20 minutes.

[0063] According to the 5# formula in Example 1, the polymerization solution (A, B liquid) was prepared according to the above-mentioned...

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Abstract

The invention provides a conductive high polymer catholyte solution as well as a preparation method and application thereof, and belongs to an important part of a manufacturing method of a solid electrolytic capacitor, namely a conductive high polymer catholyte solution with high permeability and long storage period, a preparation method thereof, as well as an application of the solution in manufacturing a solid polymer electrolytic capacitor. The invention discloses a method for dispensing, proportioning and preparing a conductive high polymer catholyte solution and processing steps of applying the prepared conductive high polymer catholyte solution in an anode porous sintering surface with a medium oxidation film so as to form a conductive high polymer. The conductive high polymer solid electrolytic capacitor manufactured by utilizing the conductive high polymer catholyte solution provided by the invention has the advantages that the impedance frequency characteristic is good; and the ESR (Equivalent Series Resistance) value can be kept stable within a range of 10KHz-1000KHz, and the change rate of the ESR value is less than 10%.

Description

technical field [0001] The invention discloses a conductive high molecular polymer catholyte solution and its preparation method and application, belonging to an important part of the solid electrolytic capacitor manufacturing method, a kind of conductive high molecular polymer catholyte that has high permeability and can be stored for a long time Solution and preparation method thereof, and application of the solution to manufacture solid polymer electrolytic capacitors. Background technique [0002] In recent years, with the rapid development of electronic machines in the direction of miniaturization, digitization, high frequency, and high reliability, people have also proposed more electrolytic capacitors, one of the high-frequency electronic components widely used in various electronic equipment. Strict requirements, especially in high-precision electronic equipment in the fields of military, aerospace, aviation, weapons, ships, etc., put forward low impedance, miniaturi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G9/035H01G9/15
Inventor 陆胜方鸣龙道学
Owner CHINA ZHENHUA GRP XINYUN ELECTRONICS COMP ANDDEV CO LTD
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