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A kind of polymer, its preparation method and electrolyte solution containing it

A high-molecular polymer and electrolyte technology, which is applied in the field of electrolyte, can solve the problems of unrecorded solution system II heat-cured gel state electrolyte performance parameters, etc., and achieve excellent high and low temperature performance, high product purity, and compatibility Good results

Active Publication Date: 2021-05-11
DONGGUAN DONGYANG SOLAR SCI RES & DEV CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, Chinese patent CN106449113 discloses a heat-cured gel state electrolyte for aluminum electrolytic capacitors, and specifically discloses the preparation process of solution system II, using acrylic acid, methacrylate and ammonium persulfate to react; but solution system II is only Partial composition of heat-cured gel state electrolyte, the preparation of this kind of electrolyte includes multiple steps, and any solution system II and performance parameters of the heat-cure gel state electrolyte are not described in the specification

Method used

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  • A kind of polymer, its preparation method and electrolyte solution containing it
  • A kind of polymer, its preparation method and electrolyte solution containing it
  • A kind of polymer, its preparation method and electrolyte solution containing it

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] Embodiment 1 Electrolyte formula and preparation thereof

[0060]

[0061]

[0062] Preparation process: Mix 60% ethylene glycol and 22% γ-butyrolactone evenly at room temperature, raise the temperature to 130°C, add 1% boric acid propylene glycol polyester gel, keep warm for 1 hour, then cool down to 100°C, and adjust the opening Moisture, add 16% ammonium salt of the high molecular polymer of formula (I), then add 0.5% ammonium hypophosphite, 0.5% p-nitrobenzyl alcohol, use ammonia water to adjust the pH to 5-7 after cooling to room temperature, and obtain the electrolyte .

Embodiment 2

[0066] Embodiment 2 electrolyte formula and preparation thereof

[0067]

[0068] Preparation process: Mix 65.5% ethylene glycol and 8% ethylene glycol monobutyl ether evenly at room temperature, raise the temperature to 130°C, add 6% polyethylene glycol 2000 at this time, keep it warm for 1 hour and then cool down to 100°C , open to adjust moisture, add formula 19.5% ammonium salt of formula (I) polymer, 0.4% ammonium hypophosphite and 0.6% p-nitrobenzyl alcohol, use ammonia water to adjust pH to 5~7 after cooling to normal temperature, obtain electrolyte.

Embodiment 3

[0072] Embodiment 3 electrolyte formula and preparation thereof

[0073]

[0074] Preparation process: Mix 66.5% ethylene glycol and 6% diethylene glycol monobutyl ether evenly at room temperature, raise the temperature to 130°C, add 5% polypropylene alcohol, keep it warm for 1 hour and cool down to 100°C, open the mouth to adjust the moisture, Add formula 21.5% ammonium salt of high molecular polymer of formula (I), 0.3% phosphoric acid and 0.7% o-nitrophenol, use ammonia water to adjust pH to 5-7 after cooling down to room temperature, and obtain electrolyte.

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Abstract

The present invention provides a high molecular polymer, its preparation method and electrolyte solution containing it; the high molecular polymer is shown in formula (I), which is obtained through monomer undecylenic acid, methyl methacrylate, formic acid Acrylic acid, hydroxyethyl methacrylate and vinyl n-butyl ether are polymerized; the electrolyte uses the ammonium salt of the high molecular polymer shown in formula (I) as the main solute. Compared with similar capacitor products, this The capacitor prepared by the electrolyte described in the invention has a higher flashover voltage (≥700V), better conductivity, significantly smaller change in conductivity after long-term operation at high temperature, and better high-temperature stability.

Description

technical field [0001] The invention relates to the technical field of electrolytic solutions, in particular to a high molecular polymer and its application in the electrolytic solution of aluminum electrolytic capacitors. Background technique [0002] Aluminum electrolytic capacitors are irreplaceable basic components in various electronic products. With the development of science and technology and the improvement of social needs, the requirements for aluminum electrolytic capacitors are getting higher and higher, making capacitors urgently move towards small size, long life, and durability. The mainstream direction of high temperature, high voltage resistance, high frequency ripple current resistance, low impedance, and low leakage current development. [0003] As the cathode of the aluminum electrolytic capacitor, the electrolyte plays an important role in providing oxygen ions and repairing the anodic oxide film, and determines the working temperature range, rated volta...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F216/16C08F220/04C08F220/06C08F220/14C08F220/20H01G9/035
CPCC08F216/16C08F220/04C08F220/06C08F220/14C08F220/20H01G9/035
Inventor 余意何凤荣
Owner DONGGUAN DONGYANG SOLAR SCI RES & DEV CO LTD
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