CN110047656A - Middle jewelling electrolytic capacitor low-leakage current Working electrolyte and preparation method thereof - Google Patents
Middle jewelling electrolytic capacitor low-leakage current Working electrolyte and preparation method thereof Download PDFInfo
- Publication number
- CN110047656A CN110047656A CN201910301053.XA CN201910301053A CN110047656A CN 110047656 A CN110047656 A CN 110047656A CN 201910301053 A CN201910301053 A CN 201910301053A CN 110047656 A CN110047656 A CN 110047656A
- Authority
- CN
- China
- Prior art keywords
- leakage current
- acid
- electrolytic capacitor
- working electrolyte
- current working
- 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
Abstract
The invention discloses a kind of middle jewelling electrolytic capacitor low-leakage current Working electrolytes and preparation method thereof, Working electrolyte comprises the following components in parts by weight: main solvent: 40% 80%, secondary solvent: 4% 15%, main solute: 7% 20%, auxiliary solute: 5% 15%, suppression aqua: 0.05% 2%, pressure-resistant elevator: 0.5% 5%, oxidant: 0.5% 1.5%, preservative: 0.5% 1.5%, disappear hydrogen agent: 0.5% 1.5%, main solvent is ethylene glycol.The present invention guarantees still there are enough voltage endurance capabilities in the case where high conductivity；Reduce aluminium foil aquation when working long hours, oxidation film is more stable, and reduces its saturated vapor pressure, improves flash over voltage；It improves electrolyte oxidation efficiency, reduce the corrosion probability for drawing item to capacitor anode, reduce leakage current, eliminate hydrogen, prevent capacitor bulge, guarantee the high life of product.
Description
Technical field
The invention belongs to the jewelling electrolytic capacitor long-lives in capacitor preparation field more particularly to a kind of 160V 250V
Low-leakage current Working electrolyte and preparation method thereof.
Background technique
Aluminium electrolutic capacitor is most widely used base components in electronic product, with scientific and technical, electronic industry
Fast development, the requirement to various components are also further promoted, especially to the performance requirement of aluminium electrolutic capacitor it is also proposed that
New challenge.
Electrolyte is the core component of aluminium electrolutic capacitor, is the practical cathode of aluminium electrolutic capacitor, the use of capacitor
Service life, reliability and electrified parameter are all closely bound up therewith, and the superiority and inferiority of performance directly influences the height of quality.
Also to the miniaturization of component, more stringent requirements are proposed for the miniaturization of electronic technology at present, and aluminium electroloysis is electric
The miniaturization of container is that cathode foil has higher specific volume at all, this is just higher to the performance requirement of electrolyte, otherwise easily
Cause volume change big and electric leakage height, to influence the service life of entire device.
Along with the fast development of LED in recent years and the optimization of chip arrangement, to output par, c alminium electrolytic condenser
It is required that higher and higher, should pressure resistance long-life, 16V from the beginning again, gradually develop 160V till now or even 200V with
On.
Middle jewelling electrolytic capacitor generally refers to capacitor of the pressure resistance from 160V 250V, has both required higher conductivity
(generally wanting 3500ms/cm or more), and high flash over voltage (350V or more) is required, with this condition, existing middle jewelling
The technical problem that electrolytic capacitor is big in the prevalence of leakage current, the capacitor service life is low.
Therefore, leakage current existing for existing middle jewelling electrolytic capacitor is big and the service life is low, is a technology urgently to be resolved
Problem.
Summary of the invention
Middle jewelling electrolytic capacitor low-leakage current Working electrolyte proposed by the present invention, it is intended to solve existing middle jewelling electrolysis
The technical problem that condenser leakage current is big and the service life is low.
According to an aspect of the present invention, a kind of middle jewelling electrolytic capacitor low-leakage current Working electrolyte, middle pressure are provided
Aluminium electrolutic capacitor low-leakage current Working electrolyte comprises the following components in parts by weight: main solvent: 40% 80%, secondary solvent:
4% 15%, main solute: 7% 20%, auxiliary solute: 5% 15%, suppression aqua: 0.05% 2%, pressure-resistant elevator: 0.5%
5%, form special modifying agent: 1.5% 3%, oxidant: 0.5% 1.5%, preservative: 0.5% 1.5%, disappear hydrogen agent: 0.5%
1.5%, main solvent is ethylene glycol.
Further, preservative is dinitro benzoic acid, ethylenediamine tetra-acetic acid, 8- carboxyl quinoline, pentaerythrite, metatungstic acid
The mixture of one or more of ammonium, metasilicic acid ammonium and phosphoric acid mono-n-butylester.
Further, oxidant is ammonium hypophosphite.
Further, secondary solvent is one or both of dimethylformamide, Y- butyrolactone, glycerine, benzyl alcohol
Mixture.
Further, main solute be decanedioic acid and its ammonium salt, azelaic acid and its ammonium salt, azelaic acid hydrogen ammonium, benzoic acid and its
The mixing of one or more of ammonium salt, 1,10-, 12 diacid and its ammonium salt substance.
Further, auxiliary solute is the one or two of ammonium benzoate, adipic acid and its ammonium salt, five boric acid and its ammonium salt
The mixing of the above substance.
Further, suppression aqua be one or both of phosphoric acid, phosphorous acid, ortho phosphorous acid, polyphosphoric acids, mannitol with
On mixture.
Further, pressure-resistant elevator be the degree of polymerization be 300 1000 polyvinyl alcohol, the degree of polymerization be 500 10000
The mixing of one or more of polyethylene glycol, polyoxyethylene oxypropylene ether, nano silica ethylene glycol solution
Object.
Further, the hydrogen agent that disappears is paranitrobenzoic acid, paranitrobenzoic acid ammonium, p nitrobenzyl alcohol, Pyrogentisinic Acid, adjacent nitre
The mixture of one or more of base methyl phenyl ethers anisole, 3-nitroacetophenone.
According to an aspect of the present invention, a kind of preparation method of middle jewelling working electrolyte of electrolytic capacitor is also provided,
The following steps are included: main solvent and secondary solvent are added in reaction kettle, heat while stirring, is sufficiently mixed solvent uniformly,
Pressure-resistant elevator and suppression aqua are added when temperature rises to 50 DEG C, continuation side, which is heated with stirring to 110 DEG C, makes pressure-resistant elevator and suppression
Aqua is sufficiently dissolved and is uniformly combined with solvent；
The main solute and auxiliary solute of half is added, side stirring is heated up to 150 DEG C, adds remaining major-minor solute and preservative
Stirring is to being completely dissolved, and then with recirculated cooling water by near 130 DEG C of kettle temperature, and is kept for 30 minutes；
Kettle temperature is finally down to 110 DEG C, oxidant is added and the hydrogen agent that disappears, is sufficiently stirred to make it completely dissolved and be uniformly mixed,
It is cooled to 95 degree to be kept for 30 minutes, then naturally cooling to 40 DEG C or less can be obtained finished product electrolyte.
It is obtained by the present invention to have the beneficial effect that
Middle jewelling electrolytic capacitor low-leakage current Working electrolyte provided by the invention uses mixed solvent system, both guaranteed
Hot properties, and low-temperature characteristics has been taken into account, because not only improve boiling point, but also reduce freezing point after two kinds of solvents dissolve each other, second two
The boiling point of alcohol is high (197 DEG C), when volume fraction is greater than 50%, freezing point (reachable -50 DEG C)；Next is added to suitable pressure resistance and is promoted
Agent, because of UR=algP+b (V), wherein P is the resistivity (D.cm) of electrolyte；A, b is the related constant of electrolyte, thus
Middle pressure electrolyte causes flash over voltage low since conductivity is high, so the addition of pressure-resistant elevator, guarantees the feelings of high conductivity
Still there are enough voltage endurance capabilities under condition；Being added to suppression aqua again reduces aluminium foil aquation when working long hours, oxidation film
It is more stable, and reduce its saturated vapor pressure, improve flash over voltage and increase the service life；In addition oxidant and preservative are added,
It thus improves electrolyte oxidation efficiency, reduce the corrosion probability for drawing item to capacitor anode, to reduce leakage current, eliminate
Hydrogen prevents capacitor bulge, ensure that the high life of product.
Specific embodiment
Below to be described in further detail by preferred embodiment to present invention process, but protection scope of the present invention
It is not limited thereto.
Embodiment one
| Title | Proportion |
| 1. ethylene glycol (EG) | 75 |
| 2. pure water | 3.5 |
| 3. Macrogol 6000 | 2 |
| 4. mannitol | 2 |
| 5. ammonium benzoate | 12 |
| 6. ammonium sebacate | 5 |
| 7. ethylenediamine tetra-acetic acid | 1 |
| 8. azelaic acid hydrogen ammonium | 2 |
| 9. azelaic acid | 1 |
| 10. ammonium hypophosphite | 1 |
| 11. p nitrobenzyl alcohol | 1 |
| 12. dinitro benzoic acid | 0.8 |
Embodiment two
| Title | Proportion |
| 1. ethylene glycol (EG) | 70 |
| 2. pure water | 3 |
| 3. Macrogol 6000 | 1.6 |
| 4. mannitol | 1.6 |
| 5. ammonium benzoate | 11 |
| 6. ammonium sebacate | 4.5 |
| 7. 8- carboxyl quinoline | 0.9 |
| 8. azelaic acid hydrogen ammonium | 1.8 |
| 9. azelaic acid | 0.9 |
| 10. ammonium hypophosphite | 0.9 |
| 11. p nitrobenzyl alcohol | 0.9 |
| 12. dinitro benzoic acid | 0.7 |
Embodiment three
| Title | Proportion |
| 1. ethylene glycol (EG) | 65 |
| 2. pure water | 3 |
| 3. Macrogol 6000 | 1.8 |
| 4. mannitol | 1.8 |
| 5. ammonium benzoate | 10 |
| 6. ammonium sebacate | 4 |
| 7. pentaerythrite | 0.8 |
| 8. azelaic acid hydrogen ammonium | 1.8 |
| 9. azelaic acid | 0.8 |
| 10. ammonium hypophosphite | 0.8 |
| 11. p nitrobenzyl alcohol | 0.8 |
| 12. dinitro benzoic acid | 0.7 |
Example IV
| Title | Proportion |
| 1. ethylene glycol (EG) | 55 |
| 2. pure water | 3 |
| 3. Macrogol 6000 | 1.7 |
| 4. mannitol | 1.7 |
| 5. ammonium benzoate | 10 |
| 6. ammonium sebacate | 4.2 |
| 7. ammonium metatungstate | 0.8 |
| 8. azelaic acid hydrogen ammonium | 1.7 |
| 9. azelaic acid | 0.8 |
| 10. ammonium hypophosphite | 0.8 |
| 11. p nitrobenzyl alcohol | 0.8 |
| 12. dinitro benzoic acid | 0.7 |
Wherein, dinitro benzoic acid is added as preservative, is resistant to halogenated hydrocarbon solvent cleaning, chloride ion is mainly caught, to prevent electricity
Container anode draws item corrosion, improves capacitor life-span and reliability.
Further, the present embodiment also provides a kind of preparation method of middle jewelling working electrolyte of electrolytic capacitor, including
Following steps:
Step S100, main solvent and secondary solvent are added in reaction kettle, heat while stirring, is sufficiently mixed solvent uniformly,
Pressure-resistant elevator polyethylene glycol and suppression aqua mannitol are added when temperature rises to 50 DEG C, continuation side, which is heated with stirring to 110 DEG C, to be made
Polyethylene glycol and mannitol are sufficiently dissolved and are uniformly combined with solvent.
Step S200, the main solute and auxiliary solute of half is added, side stirring is heated up to 150 DEG C,
It adds remaining major-minor solute and preservative is stirred to being completely dissolved, then with recirculated cooling water by the kettle temperature of reaction kettle
130 DEG C are down to, and is kept for 30 minutes.
Step S300, the kettle temperature of reaction kettle is finally down to 110 DEG C, addition oxidant ammonium hypophosphite, disappear hydrogen agent nitro
Benzoic acid is sufficiently stirred to make it completely dissolved and be uniformly mixed, and is cooled to 95 degree and is kept for 30 minutes, then naturally cools to 40
DEG C or less finished product electrolyte can be obtained.
Above-described embodiment one to four is configured to electrolyte, basic data such as table one according to the production method of electrolyte above
It is shown:
Table one
10 μ F capacitor of 250V is made in the electrolyte of embodiment one and embodiment two in table one, and under 130 DEG C of high temperature into
The test of row ripple, experimental condition are as follows: 130 DEG C of AC; 50Hz ；AC:20V；DC；230V, 2000h data are as shown in Table 2.
Table two
In table: mono- capacitance of CAP；DF-loss angle tangent；Mono- leakage current of LC；The data of index are 20 capacity measurement data
Average value.
160V100uF capacitor is made in the electrolyte of embodiment three and example IV in table one, and in 130 DEG C of high temperature
Under tested, experimental condition are as follows: 130 DEG C； DC；160V, 2000h data are as shown in Table 3.
Table three
In table: mono- capacitance of CAP;DF-loss angle tangent；Mono- leakage current of LC;The data of index are 20 capacity measurement data
Average value
As a result: by three examination data of table two and table it is found that using pressure electrolyte in this embodiment through 130 DEG C of ripples or 130 DEG C
Direct current is able to satisfy product needs, the half (regulation is no more than 30%) that volume change only requires, and it is also initial for being lost
1.5 times of left sides of value (can provide 2 times no more than specification value), and appearance is normal, thus reach design object.
Present invention employs mixed solvent system, hot properties not only ensure that, but also taken into account low-temperature characteristics, because of ethylene glycol
Boiling point it is high (197 DEG C), next is added to suitable pressure-resistant elevator because UR=algP+b (7) wherein P be electrolyte electricity
Resistance rate cm) be electrolyte related constant, thus middle pressure electrolyte due to conductivity height and cause flash over voltage just low, institute
There are enough voltage endurance capabilities in the case where can guarantee high conductivity with the introducing of pressure-resistant elevator；In addition it is added to preservative,
Which reduces corrosion probabilities when working long hours；It is added to oxidant, thus improves oxidation efficiency, to guarantee
Service life of product.
The above is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright specification is applied directly or indirectly in other relevant technical fields,
Similarly it is included within the scope of the present invention.
Claims (10)
1. a kind of middle jewelling electrolytic capacitor low-leakage current Working electrolyte, which is characterized in that medium pressure aluminium electrolutic capacitor
Low-leakage current Working electrolyte comprises the following components in parts by weight: main solvent: 40% 80%, secondary solvent: 4% 15%, master is molten
Matter: 7% 20%, auxiliary solute: 5% 15%, suppression aqua: 0.05% 2%, pressure-resistant elevator: 0.5% 5%, oxidant:
0.5% 1.5%, preservative: 0.5% 1.5%, disappear hydrogen agent: 0.5% 1.5%, the main solvent is ethylene glycol.
2. middle jewelling electrolytic capacitor low-leakage current Working electrolyte according to claim 1, which is characterized in that
The preservative is dinitro benzoic acid, ethylenediamine tetra-acetic acid, 8- carboxyl quinoline, pentaerythrite, ammonium metatungstate, metasilicic acid ammonium
And the mixture of one or more of phosphoric acid mono-n-butylester.
3. middle jewelling electrolytic capacitor low-leakage current Working electrolyte according to claim 1, which is characterized in that
The oxidant is ammonium hypophosphite.
4. middle jewelling electrolytic capacitor low-leakage current Working electrolyte according to claim 1, which is characterized in that
The secondary solvent is the mixture of one or both of dimethylformamide, Y- butyrolactone, glycerine, benzyl alcohol.
5. middle jewelling electrolytic capacitor low-leakage current Working electrolyte according to claim 1, which is characterized in that
The main solute is decanedioic acid and its ammonium salt, azelaic acid and its ammonium salt, azelaic acid hydrogen ammonium, benzoic acid and its ammonium salt, 1,10-
The mixing of one or more of 12 diacid and its ammonium salt substance.
6. middle jewelling electrolytic capacitor low-leakage current Working electrolyte according to claim 1, which is characterized in that
The auxiliary solute is one or more kinds of substances of ammonium benzoate, adipic acid and its ammonium salt, five boric acid and its ammonium salt
Mixing.
7. middle jewelling electrolytic capacitor low-leakage current Working electrolyte according to claim 1, which is characterized in that
The suppression aqua is the mixing of one or more of phosphoric acid, phosphorous acid, ortho phosphorous acid, polyphosphoric acids, mannitol
Object.
8. middle jewelling electrolytic capacitor low-leakage current Working electrolyte according to claim 1, which is characterized in that
It is described pressure resistance elevator be the degree of polymerization be 300 1000 polyvinyl alcohol, the degree of polymerization be 500 10000 polyethylene glycol,
The mixture of one or more of polyoxyethylene oxypropylene ether, nano silica ethylene glycol solution.
9. middle jewelling electrolytic capacitor low-leakage current Working electrolyte according to claim 1, which is characterized in that
It is described disappear hydrogen agent be paranitrobenzoic acid, paranitrobenzoic acid ammonium, p nitrobenzyl alcohol, Pyrogentisinic Acid, ortho-nitroanisole,
The mixture of one or more of 3-nitroacetophenone.
10. a kind of preparation method of middle jewelling working electrolyte of electrolytic capacitor, which is characterized in that medium pressure alminium electrolytic condenser
The preparation method of device Working electrolyte the following steps are included:
Main solvent and secondary solvent are added in reaction kettle, is heated while stirring, is sufficiently mixed solvent uniformly, is risen to temperature
Pressure-resistant elevator and suppression aqua are added at 50 DEG C, continuation side, which is heated with stirring to 110 DEG C, makes the pressure-resistant elevator and the suppression water
Agent is sufficiently dissolved and is uniformly combined with solvent；
The main solute and auxiliary solute of half is added, side stirring is heated up to 150 DEG C, adds remaining major-minor solute and preservative
Kettle temperature is then down to 130 DEG C with recirculated cooling water to being completely dissolved by stirring, and is kept for 30 minutes；
Kettle temperature is finally down to 110 DEG C, oxidant is added and the hydrogen agent that disappears, is sufficiently stirred to make it completely dissolved and be uniformly mixed,
It is cooled to 95 degree to be kept for 30 minutes, then naturally cooling to 40 DEG C or less can be obtained the Working electrolyte.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910301053.XA CN110047656A (en) | 2019-04-16 | 2019-04-16 | Middle jewelling electrolytic capacitor low-leakage current Working electrolyte and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910301053.XA CN110047656A (en) | 2019-04-16 | 2019-04-16 | Middle jewelling electrolytic capacitor low-leakage current Working electrolyte and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110047656A true CN110047656A (en) | 2019-07-23 |
Family
ID=67277317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910301053.XA Pending CN110047656A (en) | 2019-04-16 | 2019-04-16 | Middle jewelling electrolytic capacitor low-leakage current Working electrolyte and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110047656A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112687472A (en) * | 2020-12-03 | 2021-04-20 | 盐城星晨科技有限公司 | High-frequency electrolyte and preparation method thereof |
| CN112863878A (en) * | 2021-01-06 | 2021-05-28 | 广州金立电子有限公司 | Low-leakage aluminum electrolytic capacitor working electrolyte |
| CN112951617A (en) * | 2021-02-05 | 2021-06-11 | 广州金立电子有限公司 | Electrochemical capacitor and preparation method thereof |
| CN114496572A (en) * | 2022-01-14 | 2022-05-13 | 贵州云睿电子科技有限公司 | Medium-voltage patch aluminum electrolytic capacitor electrolyte and preparation method thereof |
| CN115863058A (en) * | 2022-12-21 | 2023-03-28 | 珠海华冠电容器股份有限公司 | Electrolyte for ultrahigh-voltage ox horn-aluminum electrolytic capacitor and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102779645A (en) * | 2012-08-10 | 2012-11-14 | 深圳市尼康继峰电子有限公司 | Working electrolyte for aluminium electrolytic capacitor and preparation method |
| CN107221437A (en) * | 2017-06-01 | 2017-09-29 | 佛山科学技术学院 | A kind of low-voltage aluminum electrolytic capacitor Working electrolyte and preparation method thereof |
| CN107863252A (en) * | 2017-11-06 | 2018-03-30 | 南通新三能电子有限公司 | Middle jewelling working electrolyte of electrolytic capacitor and preparation method thereof |
-
2019
- 2019-04-16 CN CN201910301053.XA patent/CN110047656A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102779645A (en) * | 2012-08-10 | 2012-11-14 | 深圳市尼康继峰电子有限公司 | Working electrolyte for aluminium electrolytic capacitor and preparation method |
| CN107221437A (en) * | 2017-06-01 | 2017-09-29 | 佛山科学技术学院 | A kind of low-voltage aluminum electrolytic capacitor Working electrolyte and preparation method thereof |
| CN107863252A (en) * | 2017-11-06 | 2018-03-30 | 南通新三能电子有限公司 | Middle jewelling working electrolyte of electrolytic capacitor and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 曲喜新: "铝电解电容器的工作电解液", 《电子元件与材料》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112687472A (en) * | 2020-12-03 | 2021-04-20 | 盐城星晨科技有限公司 | High-frequency electrolyte and preparation method thereof |
| CN112863878A (en) * | 2021-01-06 | 2021-05-28 | 广州金立电子有限公司 | Low-leakage aluminum electrolytic capacitor working electrolyte |
| CN112951617A (en) * | 2021-02-05 | 2021-06-11 | 广州金立电子有限公司 | Electrochemical capacitor and preparation method thereof |
| CN114496572A (en) * | 2022-01-14 | 2022-05-13 | 贵州云睿电子科技有限公司 | Medium-voltage patch aluminum electrolytic capacitor electrolyte and preparation method thereof |
| CN115863058A (en) * | 2022-12-21 | 2023-03-28 | 珠海华冠电容器股份有限公司 | Electrolyte for ultrahigh-voltage ox horn-aluminum electrolytic capacitor and preparation method thereof |
| CN115863058B (en) * | 2022-12-21 | 2023-06-27 | 珠海华冠电容器股份有限公司 | Electrolyte for ultrahigh-voltage ox horn aluminum electrolytic capacitor and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110047656A (en) | Middle jewelling electrolytic capacitor low-leakage current Working electrolyte and preparation method thereof | |
| CN107863252A (en) | Middle jewelling working electrolyte of electrolytic capacitor and preparation method thereof | |
| CN106098379B (en) | Electrolyte, the preparation method of electrolyte and aluminium electrolutic capacitor | |
| CN105244165A (en) | Chip type high-voltage aluminum electrolytic capacitor, electrolyte thereof and preparation method of electrolyte | |
| CN103839682B (en) | 600V working electrolyte for aluminium electrolytic capacitor and its application | |
| CN105280385B (en) | A kind of slender type high-pressure aluminum electrolytic capacitor Working electrolyte | |
| CN106158380A (en) | A kind of electrolyte of high-pressure aluminum electrolytic capacitor and preparation method thereof | |
| CN109192509A (en) | A kind of aluminium electrolutic capacitor and its manufacturing method in 600V high pressure high temperature resistance and long service life | |
| CN106531443A (en) | 650V high-voltage aluminium electrolytic capacitor working electrolyte and preparation method thereof | |
| TWI575546B (en) | Aluminum Electrolytic Capacitors Electrolyte and Aluminum Electrolytic Capacitors | |
| CN109935468A (en) | A kind of ultralow temperature high voltage patch type aluminum capacitor electrolyte and preparation method thereof | |
| CN103811183B (en) | A kind of 630V range high voltage aluminum electrolysis capacitor working electrolytes and its manufacture method | |
| CN108091489A (en) | A kind of Working electrolyte and preparation method of 850-900V aluminium electrolutic capacitors | |
| CN104240956A (en) | Working electrolyte for ultrahigh-voltage aluminium electrolytic capacitor and manufacturing method thereof | |
| CN104681278A (en) | High-voltage aluminium electrolysis capacitor | |
| CN110459405B (en) | Electrolyte for aluminum electrolytic capacitor and preparation method thereof | |
| CN105140035A (en) | Working electrolytic solution of aluminum electrolytic capacitor with resistance to high voltage and wide-range temperature and manufacturing method thereof | |
| JP4134360B2 (en) | Electrolytic solution for electrolytic capacitors | |
| CN103578769A (en) | Electrolyte mixture, electrolytic capacitor and composition for synthesizing conductive polymer | |
| CN105140033B (en) | A kind of medium-high voltage aluminum electrolytic capacitor Working electrolyte and preparation method thereof | |
| CN111524708B (en) | Working electrolyte of lead aluminum electrolytic capacitor and preparation method thereof | |
| JP2001076974A (en) | Electrolytic solution for electrolytic capacitor | |
| CN110718391A (en) | Electrolyte for aluminum electrolytic capacitor and preparation method thereof | |
| CN107731534B (en) | A kind of capacitor electrolyte and the capacitor using the electrolyte | |
| CN109346327A (en) | A kind of electrolyte resistant to high temperature and the aluminium electrolutic capacitor containing it |
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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190723 |