CN107731534B - A kind of capacitor electrolyte and the capacitor using the electrolyte - Google Patents
A kind of capacitor electrolyte and the capacitor using the electrolyte Download PDFInfo
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- CN107731534B CN107731534B CN201711229927.2A CN201711229927A CN107731534B CN 107731534 B CN107731534 B CN 107731534B CN 201711229927 A CN201711229927 A CN 201711229927A CN 107731534 B CN107731534 B CN 107731534B
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- capacitor
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- ethylene glycol
- butylamine
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- 239000003990 capacitor Substances 0.000 title claims abstract description 45
- 239000003792 electrolyte Substances 0.000 title claims abstract description 41
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims abstract description 40
- DLYUQMMRRRQYAE-UHFFFAOYSA-N phosphorus pentoxide Inorganic materials O1P(O2)(=O)OP3(=O)OP1(=O)OP2(=O)O3 DLYUQMMRRRQYAE-UHFFFAOYSA-N 0.000 claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 14
- JKTYGPATCNUWKN-UHFFFAOYSA-N 4-nitrobenzyl alcohol Chemical compound OCC1=CC=C([N+]([O-])=O)C=C1 JKTYGPATCNUWKN-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229910019142 PO4 Inorganic materials 0.000 claims abstract description 10
- 239000004372 Polyvinyl alcohol Substances 0.000 claims abstract description 10
- 150000001732 carboxylic acid derivatives Chemical class 0.000 claims abstract description 10
- 239000008367 deionised water Substances 0.000 claims abstract description 10
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 10
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims abstract description 10
- 239000010452 phosphate Substances 0.000 claims abstract description 10
- 229920002451 polyvinyl alcohol Polymers 0.000 claims abstract description 10
- IMFACGCPASFAPR-UHFFFAOYSA-N tributylamine Chemical compound CCCCN(CCCC)CCCC IMFACGCPASFAPR-UHFFFAOYSA-N 0.000 claims abstract description 10
- VZTDIZULWFCMLS-UHFFFAOYSA-N ammonium formate Chemical compound [NH4+].[O-]C=O VZTDIZULWFCMLS-UHFFFAOYSA-N 0.000 claims abstract description 9
- GUBGYTABKSRVRQ-XLOQQCSPSA-N Alpha-Lactose Chemical compound O[C@@H]1[C@@H](O)[C@@H](O)[C@@H](CO)O[C@H]1O[C@@H]1[C@@H](CO)O[C@H](O)[C@H](O)[C@H]1O GUBGYTABKSRVRQ-XLOQQCSPSA-N 0.000 claims description 11
- FBPFZTCFMRRESA-KVTDHHQDSA-N D-Mannitol Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-KVTDHHQDSA-N 0.000 claims description 11
- HMFHBZSHGGEWLO-SOOFDHNKSA-N D-ribofuranose Chemical compound OC[C@H]1OC(O)[C@H](O)[C@@H]1O HMFHBZSHGGEWLO-SOOFDHNKSA-N 0.000 claims description 11
- GUBGYTABKSRVRQ-QKKXKWKRSA-N Lactose Natural products OC[C@H]1O[C@@H](O[C@H]2[C@H](O)[C@@H](O)C(O)O[C@@H]2CO)[C@H](O)[C@@H](O)[C@H]1O GUBGYTABKSRVRQ-QKKXKWKRSA-N 0.000 claims description 11
- 229930195725 Mannitol Natural products 0.000 claims description 11
- PYMYPHUHKUWMLA-LMVFSUKVSA-N Ribose Natural products OC[C@@H](O)[C@@H](O)[C@@H](O)C=O PYMYPHUHKUWMLA-LMVFSUKVSA-N 0.000 claims description 11
- HMFHBZSHGGEWLO-UHFFFAOYSA-N alpha-D-Furanose-Ribose Natural products OCC1OC(O)C(O)C1O HMFHBZSHGGEWLO-UHFFFAOYSA-N 0.000 claims description 11
- 239000008101 lactose Substances 0.000 claims description 11
- 239000000594 mannitol Substances 0.000 claims description 11
- 235000010355 mannitol Nutrition 0.000 claims description 11
- 238000007792 addition Methods 0.000 claims description 8
- -1 p nitrobenzyl alcohols Chemical class 0.000 claims description 8
- 238000003756 stirring Methods 0.000 claims description 8
- 238000010792 warming Methods 0.000 claims description 8
- 238000002156 mixing Methods 0.000 claims description 4
- 238000004806 packaging method and process Methods 0.000 claims description 4
- 238000002360 preparation method Methods 0.000 claims description 4
- 238000004321 preservation Methods 0.000 claims description 4
- 239000002994 raw material Substances 0.000 claims description 3
- 239000002253 acid Substances 0.000 claims description 2
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 claims 2
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 claims 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims 1
- 235000019253 formic acid Nutrition 0.000 claims 1
- 239000000126 substance Substances 0.000 abstract description 4
- 239000011248 coating agent Substances 0.000 abstract description 3
- 238000000576 coating method Methods 0.000 abstract description 3
- 230000036571 hydration Effects 0.000 abstract description 3
- 238000006703 hydration reaction Methods 0.000 abstract description 3
- 229920006395 saturated elastomer Polymers 0.000 abstract description 3
- 150000001875 compounds Chemical class 0.000 abstract 2
- YWEUIGNSBFLMFL-UHFFFAOYSA-N diphosphonate Chemical compound O=P(=O)OP(=O)=O YWEUIGNSBFLMFL-UHFFFAOYSA-N 0.000 abstract 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 6
- 229910052782 aluminium Inorganic materials 0.000 description 6
- 150000007942 carboxylates Chemical class 0.000 description 4
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 239000004411 aluminium Substances 0.000 description 2
- 239000005030 aluminium foil Substances 0.000 description 2
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 2
- 239000004327 boric acid Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000032050 esterification Effects 0.000 description 2
- 238000005886 esterification reaction Methods 0.000 description 2
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 125000003545 alkoxy group Chemical group 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001735 carboxylic acids Chemical class 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 238000007614 solvation Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-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, LIGHT-SENSITIVE OR TEMPERATURE-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)
- Electric Double-Layer Capacitors Or The Like (AREA)
Abstract
The invention belongs to electrochemical fields, it discloses a kind of capacitor electrolyte and using the capacitor of the electrolyte, the capacitor electrolyte is mixed by ethylene glycol, ammonium formate, deionized water, organic high molecular compound, phosphate, tri-n-butylamine, polyvinyl alcohol, p nitrobenzyl alcohol, carboxylic acid, phosphorus pentoxide, p nitrobenzyl alcohol according to certain mass ratio.Addition organic high molecular compound can be such that hydrone is fixed, water is prevented directly to contact with deielectric-coating with other harmful substances, inhibit the raising of saturated vapour pressure, prevent hydration and corrode, electrolyte parameter of the invention: conductivity (35 degree)=3.8 ± 0.5ms/cm, pH value 6.5 ± 1；Flash over voltage: > 600V.It can be widely applied for the fields such as phone charger with preferable Electro Magnetic Compatibility and anti-lightning performance, have high economic value.
Description
Technical field
The present invention relates to a kind of electrolyte more particularly to a kind of capacitor electrolyte and use the capacitor of the electrolyte
Device.
Background technique
Capacitor is base components irreplaceable in various electronic products, be widely used in including power device, motherboard,
The electronic equipments such as sound equipment and uninterrupted power system.In recent years the integrated fast development with high speed processing technology of electronic component, entirely
Ball market proposes requirements at the higher level to capacitor packages performance.Small size, long-life, high temperature resistant, high frequency tolerant ripple current, Low ESR are
The development trend of aluminium electrolutic capacitor.
There are many factor for influencing capacitor performance, in addition to manufacturing technology level, anode aluminium foil quality etc., in capacitor
Working electrolyte be an important restriction factor.Electrolyte is the practical cathode of capacitor, rises and provides oxonium ion, repairing anode
The important function of oxidation film.Working electrolyte requires high oxidation efficiency, stable physico-chemical property, lesser resistivity
Deng, and it is corrosion-free to aluminium foil and sealing material.It determines the operating temperature range, voltage rating, fissipation factor, resistance of capacitor
Anti-, rated ripple current, working life etc..
Aluminum electrolytic capacitor electrolyte is mainly made of main solvent, main electrolyte and additive.Solvent determines capacitor
The operating temperature range of device, plays a crucial role to ionic solvation.The effect of main electrolyte is to provide ion, keeps electrolyte conductive
And there is oxidability.The main electrolyte selected now is mainly oxygen-containing weak acid and its esters.It is main as research is constantly goed deep into
The system of electrolyte is also constantly upgrading.Wherein, mesohigh main electrolyte development is approximately as (1) boric acid+ethylene glycol body
System: the system is the electrolyte of aluminium electrolutic capacitor early application.Esterification, which occurs, for boric acid and ethylene glycol can generate water, in height
Temperature descends water vapor and increases internal pressure, and capacitor is caused to be easily broken.The system can not be applied in hot environment, be washed in a pan substantially
It eliminates.(2) linear carboxylate+glycol system: this is current domestic widely used system.But linear carboxylate has at low temperature
The phenomenon that crystallization is precipitated, affects the cryogenic property of capacitor.And the oxidation efficiency of straight-chain carboxylic acid's salt system is lower.These are asked
Topic all restricts further increasing for capacitor performance.(3) branched carboxylic acids salt+glycol system: foreign vendor uses branch more
Carboxylate is as main electrolyte.Compared to straight-chain carboxylic acid, the introducing of side-chain radical, makes it under the high temperature conditions in branched carboxylic acids
The ability of esterification is inhibited to reinforce, to improve high-temperature stability；And due on side chain group steric hindrance effect and
The polarization of alkoxy grp increases its solubility in ethylene glycol, so as to improve its cryogenic property.Branched carboxylic acids salt
Solubility and thermal stability are superior to linear carboxylate, can produce the superior capacitor product of performance.
Preferable Electro Magnetic Compatibility and anti-lightning are realized simultaneously applied to the capacitor requirement on phone charger at present
Can, but EMC Requirements have lesser ESR, and anti-lightning requires biggish ESR.
Summary of the invention
To overcome the shortcomings of capacitor on existing phone charger, the present invention provides a kind of capacitor electrolyte and use
The capacitor of the electrolyte, the capacitor make it have lesser ESR while guaranteeing preferable anti-lightning performance.?
Other electronic component fields such as charger, using capacitor practical value with higher.
A kind of capacitor electrolyte by ethylene glycol, ammonium formate, deionized water, phosphate, tri-n-butylamine, polyvinyl alcohol, to nitre
One of base benzyl alcohol, carboxylic acid, phosphorus pentoxide and mannitol, lactose and ribose are any a variety of according to certain mass ratio
It is mixed.Wherein, in ethylene glycol 50-70%, ammonium formate 6-8%, deionized water 10-25%, mannitol, lactose and ribose
A kind of or any a variety of 5-10%, phosphate 0.4-0.8%, tri-n-butylamine 6-8%, polyvinyl alcohol 1-2%, p nitrobenzyl alcohol
0.5-1%, carboxylic acid 1-2%, phosphorus pentoxide 3-6%.
Realize the preparation method of the aluminum electrolytic capacitor electrolyte the following steps are included:
(1) ethylene glycol and deionized water are proportionally added into container, are heated, the addition when temperature rises to 50~60 DEG C
Ammonium formate；
(2) it is warming up to 80~90 DEG C of additions phosphate, polyvinyl alcohol and p nitrobenzyl alcohols, stirring and dissolving after mixing evenly
One of mannitol, lactose and ribose or any a variety of are added afterwards；
(3) start to cool down after being warming up to 120~130 degree of heat preservations 10~15 minutes；
(4) carboxylic acid, phosphorus pentoxide and p nitrobenzyl alcohol is added when temperature is down to 100~110 degree, and continues to cool down
Tri-n-butylamine is added when to 50~60 DEG C, stirs；
(5) temperature is down to 20~25 DEG C of tinning packagings.
In addition, the electrolyte of the capacitor uses capacitor of the present invention the present invention also provides a kind of capacitor
Electrolyte.
The beneficial effects of the present invention are:
(1) present invention using one of addition mannitol, lactose and ribose or it is any it is a variety of be fixed hydrone, hinder
Sealing is directly contacted with deielectric-coating with other harmful substances, is inhibited the raising of saturated vapour pressure, is prevented hydration and corrode.
(2) there is preferable Electro Magnetic Compatibility and preferable anti-lightning performance using the capacitor of electrolyte of the present invention.
Specific embodiment
It, below will be to embodiments of the present invention to keep goal of the invention of the invention, technical solution and advantage clearer
It is described in further detail.
A kind of capacitor electrolyte is formed by the raw material mixed configuration of following weight percent: ethylene glycol 50%, ammonium formate
6%, one of deionized water 20%, mannitol, lactose and ribose or any a variety of 5%, phosphate 0.6%, tri-n-butylamine
6%, polyvinyl alcohol 1%, p nitrobenzyl alcohol 0.5%, carboxylic acid 1%, phosphorus pentoxide 3%.
Using one of mannitol, lactose and ribose or it is any it is a variety of be fixed hydrone, water and its can be prevented
He directly contacts with deielectric-coating harmful substance, inhibits the raising of saturated vapour pressure, prevents hydration and corrode.
Embodiment 1
Realize the preparation method of the aluminum electrolytic capacitor electrolyte the following steps are included:
(1) ethylene glycol and deionized water are proportionally added into container, are heated, the addition when temperature rises to 50~60 DEG C
Ammonium formate；
(2) it is warming up to 80~90 DEG C of additions phosphate, polyvinyl alcohol and p nitrobenzyl alcohols, stirring and dissolving after mixing evenly
One of mannitol, lactose and ribose or any a variety of are added afterwards；
(3) start to cool down after being warming up to 120~130 degree of heat preservations 10~15 minutes；
(4) carboxylic acid, phosphorus pentoxide and p nitrobenzyl alcohol is added when temperature is down to 100~110 degree, and continues to cool down
Tri-n-butylamine is added when to 50~60 DEG C, stirs；
(5) temperature is down to 20~25 DEG C of tinning packagings.
Electrolyte parameter after being made: conductivity (35 degree)=3.8 ± 0.5ms/cm, pH value 6.5 ± 1；Flash over voltage: >
600V.It can be widely applied for the fields such as phone charger, have pole with preferable Electro Magnetic Compatibility and anti-lightning performance
High economic value.
Embodiment 2
On the basis of embodiment 1, capacitor electrolyte is formed by the raw material mixed configuration of following weight percent: second two
One of alcohol 60%, ammonium formate 7%, deionized water 10%, mannitol, lactose and ribose or any a variety of 7%, phosphate
0.5%, tri-n-butylamine 7%, polyvinyl alcohol 1%, p nitrobenzyl alcohol 0.5%, carboxylic acid 1%, phosphorus pentoxide 5%.
Realize the preparation method of the aluminum electrolytic capacitor electrolyte the following steps are included:
(1) ethylene glycol and deionized water are proportionally added into container, are heated, the addition when temperature rises to 50~60 DEG C
Ammonium formate；
(2) it is warming up to 80~90 DEG C of additions phosphate, polyvinyl alcohol and p nitrobenzyl alcohols, stirring and dissolving after mixing evenly
One of mannitol, lactose and ribose or any a variety of are added afterwards；
(3) start to cool down after being warming up to 120~130 degree of heat preservations 10~15 minutes；
(4) carboxylic acid, phosphorus pentoxide and p nitrobenzyl alcohol is added when temperature is down to 100~110 degree, and continues to cool down
Tri-n-butylamine is added when to 50~60 DEG C, stirs；
(5) temperature is down to 20~25 DEG C of tinning packagings.
Electrolyte parameter after being made: conductivity (35 degree)=3.8 ± 0.5ms/cm, pH value 6.5 ± 1；Flash over voltage: >
650V.Its withstand-lightning capability is more superior compared with embodiment 1, and the application range of the electrolyte is wider.
Above disclosed be only several preferred embodiments of the invention, cannot limit the present invention's certainly with this
Interest field, therefore equivalent changes made in accordance with the claims of the present invention, are still within the scope of the present invention.
Claims (2)
1. a kind of capacitor electrolyte, it is characterised in that: the capacitor electrolyte is configured by the raw material of following weight percent
Form, one of ethylene glycol 50-70%, ammonium formate 6-8%, deionized water 10-25%, mannitol, lactose and ribose or appoint
Anticipate a variety of 5-10%, phosphate 0.4-0.8%, tri-n-butylamine 6-8%, polyvinyl alcohol 1-2%, p nitrobenzyl alcohol 0.5-1%, carboxylic
Base acid 1-2% and phosphorus pentoxide 3-6%；
Specifically, the capacitor electrolyte preparation method the following steps are included:
(1) ethylene glycol and deionized water are proportionally added into container, heat, formic acid is added when temperature rises to 50~60 DEG C
Ammonium；
(2) it is warming up to 80~90 DEG C of additions phosphate, polyvinyl alcohol and p nitrobenzyl alcohols after mixing evenly, adds after stirring and dissolving
Enter one of mannitol, lactose and ribose or any a variety of；
(3) start to cool down after being warming up to 120~130 degree of heat preservations 10~15 minutes；
(4) carboxylic acid, phosphorus pentoxide and p nitrobenzyl alcohol is added when temperature is down to 100~110 degree, and continues to cool to 50
Tri-n-butylamine is added at~60 DEG C, stirs；
(5) temperature is down to 20~25 DEG C of tinning packagings.
2. a kind of capacitor, it is characterised in that: the capacitor uses capacitor electrolyte described in claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711229927.2A CN107731534B (en) | 2017-11-29 | 2017-11-29 | A kind of capacitor electrolyte and the capacitor using the electrolyte |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711229927.2A CN107731534B (en) | 2017-11-29 | 2017-11-29 | A kind of capacitor electrolyte and the capacitor using the electrolyte |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107731534A CN107731534A (en) | 2018-02-23 |
| CN107731534B true CN107731534B (en) | 2019-08-20 |
Family
ID=61220425
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711229927.2A Active CN107731534B (en) | 2017-11-29 | 2017-11-29 | A kind of capacitor electrolyte and the capacitor using the electrolyte |
Country Status (1)
| Country | Link |
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| CN (1) | CN107731534B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102222568A (en) * | 2011-03-31 | 2011-10-19 | 肇庆绿宝石电子有限公司 | Aluminium electrolytic capacitor specially used in LED driving power supply and manufacturing method thereof |
| CN105469992A (en) * | 2015-12-22 | 2016-04-06 | 东莞市久制电子有限公司 | High-sparking and anti-lightning electrolyte for aluminum electrolytic capacitor and preparation method therefor |
| CN106158380A (en) * | 2016-08-31 | 2016-11-23 | 湖南艾华集团股份有限公司 | A kind of electrolyte of high-pressure aluminum electrolytic capacitor and preparation method thereof |
| CN107275093A (en) * | 2017-06-30 | 2017-10-20 | 东莞市久制电子有限公司 | A kind of 600V electrolyte and preparation method thereof |
-
2017
- 2017-11-29 CN CN201711229927.2A patent/CN107731534B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102222568A (en) * | 2011-03-31 | 2011-10-19 | 肇庆绿宝石电子有限公司 | Aluminium electrolytic capacitor specially used in LED driving power supply and manufacturing method thereof |
| CN105469992A (en) * | 2015-12-22 | 2016-04-06 | 东莞市久制电子有限公司 | High-sparking and anti-lightning electrolyte for aluminum electrolytic capacitor and preparation method therefor |
| CN106158380A (en) * | 2016-08-31 | 2016-11-23 | 湖南艾华集团股份有限公司 | A kind of electrolyte of high-pressure aluminum electrolytic capacitor and preparation method thereof |
| CN107275093A (en) * | 2017-06-30 | 2017-10-20 | 东莞市久制电子有限公司 | A kind of 600V electrolyte and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 铝电解电容器工作电解液添加剂及其应用;高泉涌;《广东化工》;20091231 |
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| CN107731534A (en) | 2018-02-23 |
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