CN111584240A - Wide-temperature wide-pressure large-ripple-resistant electrolyte - Google Patents
Wide-temperature wide-pressure large-ripple-resistant electrolyte Download PDFInfo
- Publication number
- CN111584240A CN111584240A CN202010518868.6A CN202010518868A CN111584240A CN 111584240 A CN111584240 A CN 111584240A CN 202010518868 A CN202010518868 A CN 202010518868A CN 111584240 A CN111584240 A CN 111584240A
- Authority
- CN
- China
- Prior art keywords
- parts
- wide
- ammonium
- acid
- mannitol
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/004—Details
- H01G9/022—Electrolytes; Absorbents
- H01G9/035—Liquid electrolytes, e.g. impregnating materials
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/145—Liquid electrolytic capacitors
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a wide-temperature wide-pressure large ripple resistant electrolyte, which is prepared from the following raw materials in parts by weight: 50-55 parts of ethylene glycol; 8-12 parts of diethylene glycol; 1240.5-1.5 parts of polyvinyl alcohol; 2-4 parts of boric acid; 2-4 parts of mannitol; 4-7 parts of ammonium sebacic acid; 1-3 parts of ammonium laurate; 6-12 parts of an organic polymer; 10-17 parts of organic long carbon chain carboxylic acid; 1-3 parts of a composite additive; 0.5-3.5 parts of purified water; heating ethylene glycol to 145 ℃ according to the weight ratio, then adding polyvinyl alcohol 124 solvent to completely dissolve, cooling to 130 ℃, adding boric acid, mannitol, sebacic acid ammonium salt, ammonium laurate organic polymer and organic long carbon chain carboxylic acid to completely dissolve, keeping the temperature at 125-135 ℃ for 1 hour, cooling to 80-90 ℃, and adding additive and dehydrogenation agent. The invention has stronger ripple resistance, high reliability and wide application range and can be used in severe environment.
Description
Technical Field
The invention relates to electrolyte for an electrolytic capacitor, in particular to wide-temperature wide-voltage large-ripple-resistant electrolyte.
Background
With the rapid development of the industrial field, the high voltage of the circuit system is brought by the high efficiency and energy saving of the industrial equipment, so that the performance requirements of the high voltage frequency converter, the electronic automobile and the like on the wide temperature, wide voltage and long service life of the aluminum electrolytic capacitor are continuously improved.
Under high-temperature load and ripple current, the conventional common high-voltage aluminum electrolytic capacitor electrolyte continuously reacts with the internal molecules of the electrolyte along with the lapse of time: decomposition, esterification, amide, aluminium foil corrosion etc. make capacitor capacity constantly reduce, and the loss tangent constantly increases, and along with the water that constantly produces of esterification partly constantly decomposes and produces hydrogen, partly because moisture evaporation leads to the rising of condenser internal pressure under the high temperature, makes the condenser drum end accelerating capacitor speed of inefficacy.
The prior art also discloses a plurality of technical schemes in this aspect, and the technical schemes have the characteristics, however, people are continuously exploring in the field and continuously developing new electrolyte.
Disclosure of Invention
The invention aims to provide a wide-temperature wide-voltage large-ripple-resistant electrolyte which has wider applicable temperature condition, wider applicable voltage and stronger ripple resistance compared with the prior art.
The technical scheme adopted by the invention is that the wide-temperature wide-pressure large-ripple-resistant electrolyte is prepared from the following raw materials in parts by weight:
50-60 parts of ethylene glycol;
5-15 parts of diethylene glycol;
1240.5-1.5 parts of polyvinyl alcohol;
1-4 parts of boric acid;
2-4 parts of mannitol;
1-7 parts of ammonium sebacic acid;
1-3 parts of ammonium laurate;
5-12 parts of an organic polymer;
5-18 parts of organic long carbon chain carboxylic acid;
0.2 to 5 portions of dehydrogenation agent
0.1-1 part of additive;
0.5-4 parts of purified water;
the preparation method comprises the following steps:
heating the solvents of ethylene glycol and diethylene glycol to 145 ℃ according to the weight ratio, then adding the polyvinyl alcohol 124 solvent for complete dissolution, cooling to 130 ℃, adding boric acid, mannitol, sebacic acid ammonium salt, ammonium laurate organic polymer and organic long-carbon-chain carboxylic acid for complete dissolution, preserving heat at 125-135 ℃ for 1 hour, cooling to 80-90 ℃, and adding the additive and the dehydrogenation agent.
Further, in the present invention,
52.5 parts of ethylene glycol;
10 parts of diethylene glycol;
1240.5 parts of polyvinyl alcohol;
2 parts of boric acid;
2 parts of mannitol;
6 parts of ammonium sebacic acid;
1 part of ammonium laurate;
8 parts of an organic polymer;
15 parts of organic long carbon chain carboxylic acid;
0.35 part of additive;
2.5 parts of dehydrogenation agent
3 parts of purified water.
Adopt above-mentioned technical scheme to have following effect:
(ethylene glycol + diethylene glycol) is used as a main solvent; because the boiling point of the ethylene glycol is 197 ℃, and the solubility is high; the diethylene glycol is 244.8 ℃, and can be mutually dissolved with the ethylene glycol. The low-temperature section adopts (ethylene glycol and water) which can be mutually dissolved in any proportion, and can obtain satisfactory negative temperature characteristic (-40 ℃), so that the service environment of customers is wider and wider.
(2) In the aspect of solute, ammonium sebacic acid salt and ammonium dodecanedioate are used as solutes, and ammonium carboxylate which is more stable, temperature-resistant and ripple-resistant and has a branched chain length carbon chain is added as a main solute; higher sparking voltage and high conductivity are obtained. The product is ensured to have lower saturated vapor pressure and large ripple resistance.
(3) Additive: with phosphoric acids, such as, for example, ammonium phosphate, ammonium hypophosphite, ammonium phosphite; one of them is used for inhibiting the hydration reaction of the oxide film and ensuring that the oxide film is not damaged.
(4) Improving the flash fire: boric acid is added to carry out polymerization reaction with the organic polymer at high temperature to generate boric acid ester, so that the sparking voltage of the electrolyte is improved, and the compressive breakdown resistance is enhanced.
(5) A hydrogen eliminating agent: one or two of the materials are added, such as methyl carbinol, benzoic acid, phenol, o-anisole, etc., and the material is used as a hydrogen eliminating agent, so that the key of the material is very important, the saturated vapor pressure of the product is reduced, and the product with overhigh air pressure caused by excessive hydrogen generated by water electrolysis is prevented from being blown to the bottom.
The preparation method has the advantages of simple process, convenient operation and control, stable quality, high production efficiency and low production cost, and can be used for large-scale industrial production.
Detailed Description
Example 1
The preparation method comprises the following steps: heating the solvents of ethylene glycol and diethylene glycol to 145 ℃ according to the weight ratio, then adding the polyvinyl alcohol 124 solvent for complete dissolution, cooling to 130 ℃, adding boric acid, mannitol, ammonium sebacate, ammonium laurate, organic polymer and organic long-carbon-chain carboxylic acid for complete dissolution, keeping the temperature at 130 ℃ for 1 hour, cooling to 85 ℃, and adding the additive and the dehydrogenation agent.
Example 2
The preparation method comprises the following steps: heating the solvents of ethylene glycol and diethylene glycol to 145 ℃ according to the weight ratio, then adding the polyvinyl alcohol 124 solvent for complete dissolution, cooling to 130 ℃, adding boric acid, mannitol, ammonium sebacate, ammonium laurate, organic polymer and organic long-carbon-chain carboxylic acid for complete dissolution, keeping the temperature at 130 ℃ for 1 hour, cooling to 85 ℃, and adding the additive and the dehydrogenation agent.
Example 3
The preparation method comprises the following steps: heating the solvents of ethylene glycol and diethylene glycol to 145 ℃ according to the weight ratio, then adding the polyvinyl alcohol 124 solvent for complete dissolution, cooling to 130 ℃, adding boric acid, mannitol, ammonium sebacate, ammonium laurate, organic polymer and organic long-carbon-chain carboxylic acid for complete dissolution, keeping the temperature at 130 ℃ for 1 hour, cooling to 85 ℃, and adding the additive and the dehydrogenation agent.
The detection parameters corresponding to the above embodiment are as follows:
the high temperature load test results were as follows:
Claims (2)
1. the wide-temperature wide-pressure large-ripple-resistant electrolyte is characterized by being prepared from the following raw materials in parts by weight:
50-60 parts of ethylene glycol;
5-15 parts of diethylene glycol;
1240.5-1.5 parts of polyvinyl alcohol;
1-4 parts of boric acid;
2-4 parts of mannitol;
1-7 parts of ammonium sebacic acid;
1-3 parts of ammonium laurate;
5-12 parts of an organic polymer;
5-18 parts of organic long carbon chain carboxylic acid;
0.2 to 5 portions of dehydrogenation agent
0.1-1 part of additive;
0.5-4 parts of purified water;
the preparation method comprises the following steps:
heating the solvents of ethylene glycol and diethylene glycol to 145 ℃ according to the weight ratio, then adding the polyvinyl alcohol 124 solvent for complete dissolution, cooling to 130 ℃, adding boric acid, mannitol, sebacic acid ammonium salt, ammonium laurate organic polymer and organic long-carbon-chain carboxylic acid for complete dissolution, preserving heat at 125-135 ℃ for 1 hour, cooling to 80-90 ℃, and adding the additive and the dehydrogenation agent.
2. The wide-temperature wide-pressure large ripple resistant electrolyte as claimed in claim 1, which is prepared from the following raw materials in parts by weight:
52.5 parts of ethylene glycol;
10 parts of diethylene glycol;
1240.5 parts of polyvinyl alcohol;
2 parts of boric acid;
2 parts of mannitol;
6 parts of ammonium sebacic acid;
1 part of ammonium laurate;
8 parts of an organic polymer;
15 parts of organic long carbon chain carboxylic acid;
0.35 part of additive;
2.5 parts of a hydrogen eliminating agent;
3 parts of purified water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010518868.6A CN111584240A (en) | 2020-06-09 | 2020-06-09 | Wide-temperature wide-pressure large-ripple-resistant electrolyte |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010518868.6A CN111584240A (en) | 2020-06-09 | 2020-06-09 | Wide-temperature wide-pressure large-ripple-resistant electrolyte |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111584240A true CN111584240A (en) | 2020-08-25 |
Family
ID=72111164
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010518868.6A Pending CN111584240A (en) | 2020-06-09 | 2020-06-09 | Wide-temperature wide-pressure large-ripple-resistant electrolyte |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111584240A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113257575A (en) * | 2021-05-25 | 2021-08-13 | 深圳市凯琦佳科技股份有限公司 | Ultralow-loss electrolyte suitable for 125 degrees and preparation method thereof |
| CN114360913A (en) * | 2022-01-05 | 2022-04-15 | 贵州云睿电子科技有限公司 | Multifunctional boric acid-free electrolyte and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1744247A (en) * | 2004-08-30 | 2006-03-08 | 广东风华高新科技股份有限公司 | Aluminium electrolytic capacitor working electrolyte and capacitor obtained thereof |
| CN103839682A (en) * | 2012-11-21 | 2014-06-04 | 东莞市东阳光电容器有限公司 | Working electrolyte of 600-V aluminum electrolytic capacitor and application thereof |
| CN105513801A (en) * | 2015-12-22 | 2016-04-20 | 东莞市久制电子有限公司 | High temperature resistant, ripple resistant, and long life electrolyte for aluminium electrolytic capacitor and preparation method thereof |
| CN109448996A (en) * | 2018-12-29 | 2019-03-08 | 广州鸿葳科技股份有限公司 | A kind of high conductance electrolyte of high pressure and the preparation method and application thereof |
-
2020
- 2020-06-09 CN CN202010518868.6A patent/CN111584240A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1744247A (en) * | 2004-08-30 | 2006-03-08 | 广东风华高新科技股份有限公司 | Aluminium electrolytic capacitor working electrolyte and capacitor obtained thereof |
| CN103839682A (en) * | 2012-11-21 | 2014-06-04 | 东莞市东阳光电容器有限公司 | Working electrolyte of 600-V aluminum electrolytic capacitor and application thereof |
| CN105513801A (en) * | 2015-12-22 | 2016-04-20 | 东莞市久制电子有限公司 | High temperature resistant, ripple resistant, and long life electrolyte for aluminium electrolytic capacitor and preparation method thereof |
| CN109448996A (en) * | 2018-12-29 | 2019-03-08 | 广州鸿葳科技股份有限公司 | A kind of high conductance electrolyte of high pressure and the preparation method and application thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113257575A (en) * | 2021-05-25 | 2021-08-13 | 深圳市凯琦佳科技股份有限公司 | Ultralow-loss electrolyte suitable for 125 degrees and preparation method thereof |
| CN113257575B (en) * | 2021-05-25 | 2022-09-20 | 深圳市凯琦佳科技股份有限公司 | Ultralow-loss electrolyte suitable for 125 degrees and preparation method thereof |
| CN114360913A (en) * | 2022-01-05 | 2022-04-15 | 贵州云睿电子科技有限公司 | Multifunctional boric acid-free electrolyte and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101599367B (en) | 600V extra-high voltage aluminum electrolyte capacitor working electrolyte and preparation and application thereof | |
| CN111584240A (en) | Wide-temperature wide-pressure large-ripple-resistant electrolyte | |
| CN101866751A (en) | Temperature-resistant electrolyte for aluminum electrolysis and application thereof | |
| CN106449103A (en) | Dedicated electrolyte for ultralow-temperature aluminium electrolytic capacitor | |
| CN102074365A (en) | High-voltage working electrolyte and preparation method thereof | |
| CN106252079A (en) | A kind of electrolyte of 700V high-pressure aluminum electrolytic capacitor | |
| CN104900917A (en) | Electrolyte for lithium titanate lithium ion battery | |
| CN106098379A (en) | Electrolyte, the preparation method of electrolyte and aluminium electrolutic capacitor | |
| CN102013325B (en) | Electrolyte of wide temperature long-life patch aluminium electrolytic capacitor and preparation method thereof | |
| CN111029152A (en) | Dedicated aluminium electrolytic capacitor of on-vehicle electron | |
| CN102074357B (en) | Preparation method, product and application of electrolyte for high voltage aluminum electrolytic capacitor | |
| CN105575665B (en) | A kind of high conductance long life aluminum electrolytic capacitor electrolyte and preparation method thereof | |
| CN111508710B (en) | Electrolyte for wide-temperature aluminum electrolytic capacitor and preparation method thereof | |
| CN112927938B (en) | Electrolyte for aluminum electrolytic capacitor, and electronic device | |
| CN104681278A (en) | High-voltage aluminium electrolysis capacitor | |
| CN107275093B (en) | A kind of 600V electrolyte and preparation method thereof | |
| CN105469992B (en) | A kind of high scintillation anti-lightning electrolyte for aluminum electrolytic capacitor and preparation method thereof | |
| CN105469991A (en) | High-sparking and long-service-life electrolyte for aluminum electrolytic capacitor and preparation method therefor | |
| CN111640578A (en) | Working electrolyte of aluminum electrolytic capacitor for LED and preparation method thereof | |
| CN111584239A (en) | Electrolyte of medium-voltage aluminum electrolytic capacitor | |
| CN112133562B (en) | High-temperature-resistant aluminum electrolytic capacitor electrolyte with long service life | |
| CN105977027A (en) | Electrolyte for aluminum electrolytic capacitor | |
| CN107887164B (en) | Working electrolyte of 130 ℃ high-voltage aluminum electrolytic capacitor and preparation method | |
| CN111627711A (en) | Working electrolyte of aluminum electrolytic capacitor with voltage lower than 63V | |
| CN112768248B (en) | Low-temperature-resistant electrolyte for aluminum electrolytic capacitor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20200825 |