CN105513801A - High temperature resistant, ripple resistant, and long life electrolyte for aluminium electrolytic capacitor and preparation method thereof - Google Patents
High temperature resistant, ripple resistant, and long life electrolyte for aluminium electrolytic capacitor and preparation method thereof Download PDFInfo
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- CN105513801A CN105513801A CN201510973327.1A CN201510973327A CN105513801A CN 105513801 A CN105513801 A CN 105513801A CN 201510973327 A CN201510973327 A CN 201510973327A CN 105513801 A CN105513801 A CN 105513801A
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- 239000003990 capacitor Substances 0.000 title claims abstract description 59
- 239000003792 electrolyte Substances 0.000 title claims abstract description 56
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 47
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 47
- 238000002360 preparation method Methods 0.000 title claims abstract description 17
- 239000004411 aluminium Substances 0.000 title abstract description 12
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims abstract description 114
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims abstract description 98
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims abstract description 49
- OTRAYOBSWCVTIN-UHFFFAOYSA-N OB(O)O.OB(O)O.OB(O)O.OB(O)O.OB(O)O.N.N.N.N.N.N.N.N.N.N.N.N.N.N.N Chemical compound OB(O)O.OB(O)O.OB(O)O.OB(O)O.OB(O)O.N.N.N.N.N.N.N.N.N.N.N.N.N.N.N OTRAYOBSWCVTIN-UHFFFAOYSA-N 0.000 claims abstract description 35
- CFBYEGUGFPZCNF-UHFFFAOYSA-N 2-nitroanisole Chemical compound COC1=CC=CC=C1[N+]([O-])=O CFBYEGUGFPZCNF-UHFFFAOYSA-N 0.000 claims abstract description 34
- GJYJYFHBOBUTBY-UHFFFAOYSA-N alpha-camphorene Chemical compound CC(C)=CCCC(=C)C1CCC(CCC=C(C)C)=CC1 GJYJYFHBOBUTBY-UHFFFAOYSA-N 0.000 claims abstract description 34
- SATJMZAWJRWBRX-UHFFFAOYSA-N azane;decanedioic acid Chemical compound [NH4+].[NH4+].[O-]C(=O)CCCCCCCCC([O-])=O SATJMZAWJRWBRX-UHFFFAOYSA-N 0.000 claims abstract description 34
- 239000002994 raw material Substances 0.000 claims abstract description 31
- 150000001735 carboxylic acids Chemical class 0.000 claims description 48
- 235000009508 confectionery Nutrition 0.000 claims description 33
- 238000009413 insulation Methods 0.000 claims description 14
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 claims description 11
- 239000004327 boric acid Substances 0.000 claims description 11
- 238000002156 mixing Methods 0.000 claims description 7
- 150000001732 carboxylic acid derivatives Chemical class 0.000 abstract description 2
- 230000003993 interaction Effects 0.000 abstract description 2
- 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 abstract 1
- 229930195725 Mannitol Natural products 0.000 abstract 1
- 239000000594 mannitol Substances 0.000 abstract 1
- 235000010355 mannitol Nutrition 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 11
- 150000003839 salts Chemical class 0.000 description 7
- 239000002904 solvent Substances 0.000 description 4
- 238000009776 industrial production Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000012188 paraffin wax Substances 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- 230000032050 esterification Effects 0.000 description 2
- 238000005886 esterification reaction Methods 0.000 description 2
- -1 hydrocarbon saturated dicarboxylic acid Chemical class 0.000 description 2
- BDJRBEYXGGNYIS-UHFFFAOYSA-N nonanedioic acid Chemical compound OC(=O)CCCCCCCC(O)=O BDJRBEYXGGNYIS-UHFFFAOYSA-N 0.000 description 2
- CXMXRPHRNRROMY-UHFFFAOYSA-N sebacic acid Chemical compound OC(=O)CCCCCCCCC(O)=O CXMXRPHRNRROMY-UHFFFAOYSA-N 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- OWCLRJQYKBAMOL-UHFFFAOYSA-N 2-butyloctanedioic acid Chemical compound CCCCC(C(O)=O)CCCCCC(O)=O OWCLRJQYKBAMOL-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 229920000305 Nylon 6,10 Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 150000002484 inorganic compounds Chemical class 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 238000007086 side reaction 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
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Electric Double-Layer Capacitors Or The Like (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Abstract
The invention relates to the electrolyte technical field, and particularly to a high temperature resistant, ripple resistant, and long life electrolyte for an aluminium electrolytic capacitor and a preparation method thereof. The electrolyte comprises the following raw materials by weight parts: 4-6 parts of ammonium sebacate, 1.5-2.5 parts of ammonium pentaborate, 0.8-1.2 parts of mannitol, 10-14 parts of branch-chain carboxylic acid, 16-20 parts of spark improvers, 0.2-0.4 part of organic phosphoric acid, 2.5-3.5 parts of o-nitroanisole, 0.2-0.3 part of ammonium hypophosphite, and 45-70 parts of ethylene glycol. The prepared electrolyte has the spark voltage reaching 510V and the electric conductivity reaching 1.8ms/cm through interaction of the above raw materials and strict control of the weight ratios of the raw materials, has the advantages of good electrochemical property, high temperature resistance, ripple resistance and long life, and can be applied to the preparation of the aluminium electrolytic capacitor.
Description
Technical field
The present invention relates to technical field of electrolyte, be specifically related to a kind of high temperature resistant long life aluminum electrolytic capacitor of resistance to ripple electrolyte and preparation method thereof.
Background technology
Aluminium electrolytic capacitor is one of base components of electronic product.Along with improving constantly and the expansion of aluminium electrolytic capacitor range of application of Quality of electronic products, higher requirement is proposed to its performance.The electronic product such as Switching Power Supply, electricity-saving lamp requires very high to the security performance of high-voltage electrolysis capacitor.In filter circuit, capacitor bears high voltage, high ripple current, if feed is unstable or apply overvoltage, can causes the destruction of capacitor, catch fire, the accident such as burning.Aluminum electrolytic capacitor electrolyte is the actual negative electrode in the whole course of work of capacitor, has material impact to the performance of capacitor, wherein: serviceability temperature scope, working life, reliability, leakage current, loss, volume change etc. play a decisive role to electrical property.
At present, known or the Working electrolyte of medium-high voltage aluminum electrolytic capacitor, have passed through following evolution: one, be main solvent with ethylene glycol, the inorganic compound such as boric acid or ammonium pentaborate is main solute.There is the low problem of conductivity in the Working electrolyte of such preparation, and boric acid and salt thereof are at high temperature easily and ethylene glycol generation esterification and generate a large amount of condensation water, the moisture of electrolyte inside is caused to raise, the vapour pressure of electrolyte increases, and in capacitor, voltage rise is high and cause capacitor valve opening to lose efficacy; Two, take ethylene glycol as main solvent, the direct-connected hydrocarbon saturated dicarboxylic acid such as azelaic acid, decanedioic acid or 12 diacid and salt thereof is adopted to be electrolyte solution, although the electrolyte of this class avoids a part of esterification, but because the solubility of linear paraffin in ethylene glycol of this class is less, cause the impedance of product larger, easily generate heat under large ripple and make solvent evaporates, thus generation vicious circle, cause capacitor withered and lost efficacy, at high temperature easily there is amidatioon side reaction generation water in linear paraffin simultaneously, also easily causes capacitor early failure; Three, some branched acid or its salt is adopted, as 1 of report, 6-DDA and salt thereof and 2-butyl suberic acid and salt thereof, the solubility of this kind of branched carboxylic acid and salt pair solvent thereof increases than linear paraffin, thus effect is created to a certain extent, but meanwhile, this kind of acid or its salt mainly rely on import, thus cost is high and restraining factors are more.
Summary of the invention
In order to overcome the shortcoming and defect existed in prior art, the object of the present invention is to provide a kind of high temperature resistant long life aluminum electrolytic capacitor of resistance to ripple electrolyte, this electrolyte flash over voltage can reach 510V, conductivity can reach 1.8ms/cm, there is good electrochemical properties, there is high temperature resistant, resistance to ripple and long-life advantage, can be applicable to the manufacture of aluminium electrolytic capacitor.
Another object of the present invention is to the preparation method providing a kind of high temperature resistant long life aluminum electrolytic capacitor of resistance to ripple electrolyte, this preparation method's technique is simple, convenient operation and control, steady quality, production efficiency is high, and production cost is low, can large-scale industrial production.
Object of the present invention is achieved through the following technical solutions: a kind of high temperature resistant long life aluminum electrolytic capacitor of resistance to ripple electrolyte, and it is made up of the raw material of following weight portion:
Ammonium sebacate 4-6 part
Ammonium pentaborate 1.5-2.5 part
Sweet mellow wine 0.8-1.2 part
Branched carboxylic acids 10-14 part
Scintillation elevator 16-20 part
Organic phosphoric acid 0.2-0.4 part
Ortho-nitroanisole 2.5-3.5 part
Ammonium hypophosphite 0.2-0.3 part
Ethylene glycol 45-70 part.
Electrolyte of the present invention is by adopting the interaction between above-mentioned raw materials, and the strict weight proportion controlling each raw material, obtained electrolyte flash over voltage can reach 510V, conductivity can reach 1.8ms/cm, there is good electrochemical properties, there is high temperature resistant, resistance to ripple and long-life advantage, can be applicable to the manufacture of aluminium electrolytic capacitor.
Preferably, it is made up of the raw material of following weight portion:
Ammonium sebacate 4-5 part
Ammonium pentaborate 1.5-2 part
Sweet mellow wine 0.8-1 part
Branched carboxylic acids 10-12 part
Scintillation elevator 16-18 part
Organic phosphoric acid 0.2-0.3 part
Ortho-nitroanisole 2.5-3 part
Ammonium hypophosphite 0.2-0.25 part
Ethylene glycol 45-58.5 part.
Another is preferred, and it is made up of the raw material of following weight portion:
Ammonium sebacate 4.5-5.5 part
Ammonium pentaborate 1.8-2.2 part
Sweet mellow wine 0.9-1.1 part
Branched carboxylic acids 11-13 part
Scintillation elevator 17-19 part
Organic phosphoric acid 0.25-0.35 part
Ortho-nitroanisole 2.8-3.2 part
Ammonium hypophosphite 0.22-0.28 part
Ethylene glycol 50-65 part.
Another is preferred, and it is made up of the raw material of following weight portion:
Ammonium sebacate 5-6 part
Ammonium pentaborate 2-2.5 part
Sweet mellow wine 1-1.2 part
Branched carboxylic acids 12-14 part
Scintillation elevator 18-20 part
Organic phosphoric acid 0.3-0.4 part
Ortho-nitroanisole 3-3.5 part
Ammonium hypophosphite 0.25-0.3 part
Ethylene glycol 58.5-70 part.
More preferred, it is made up of the raw material of following weight portion:
Ammonium sebacate 4.5 parts
Ammonium pentaborate 1.8 parts
0.9 part, sweet mellow wine
Branched carboxylic acids 11 parts
Scintillation elevator 17 parts
Organic phosphoric acid 0.25 part
Ortho-nitroanisole 2.8 parts
Ammonium hypophosphite 0.22 part
Ethylene glycol 50 parts.
Another is preferred, and it is made up of the raw material of following weight portion:
Ammonium sebacate 5 parts
Ammonium pentaborate 2 parts
1 part, sweet mellow wine
Branched carboxylic acids 12 parts
Scintillation elevator 18 parts
Organic phosphoric acid 0.3 part
Ortho-nitroanisole 3 parts
Ammonium hypophosphite 0.25 part
Ethylene glycol 58.5 parts.
Another is preferred, and it is made up of the raw material of following weight portion:
Ammonium sebacate 5.5 parts
Ammonium pentaborate 2.2 parts
1.1 parts, sweet mellow wine
Branched carboxylic acids 13 parts
Scintillation elevator 19 parts
Organic phosphoric acid 0.35 part
Ortho-nitroanisole 3.2 parts
Ammonium hypophosphite 0.28 part
Ethylene glycol 65 parts.
Preferably, described scintillation elevator reacts the obtained colloidal cpd with stereochemical structure by PVA and boric acid with weight ratio 1:1.8-2.2.The present invention is by adopting PVA and boric acid using the obtained colloidal cpd with stereochemical structure of weight ratio 1:1.8-2.2 reaction as scintillation elevator, and obtained electrolyte has higher flash over voltage; While can also ensureing that capacitor height is withstand voltage, make aluminium electrolytic capacitor still can keep preferably performance after long-term use, achieve the long-life.More preferred, described scintillation elevator reacts the obtained colloidal cpd with stereochemical structure by PVA and boric acid with weight ratio 1:2.
Preferably, described branched carboxylic acids is the model that Dongguan City Jiu Zhi Electronics Co., Ltd. produces is the branched carboxylic acids of JZ-01.The present invention is the branched carboxylic acids of JZ-01 by the model adopting Dongguan City Jiu Zhi Electronics Co., Ltd. and produce, and has higher solubility, low resistance, the low-temperature electrolyte not easily advantage such as crystallization.
Described organic phosphoric acid is the model that Dongguan City Jiu Zhi Electronics Co., Ltd. produces is the organic phosphoric acid of JZ-12.The present invention is by adopting the model of Dongguan City Jiu Zhi Electronics Co., Ltd. production to be the organic phosphoric acid of JZ-12, and obtained electrolyte has good electrochemical properties, has high temperature resistant, resistance to ripple and long-life advantage.
Another object of the present invention is achieved through the following technical solutions: a kind of high temperature resistant long life aluminum electrolytic capacitor of resistance to ripple preparation method of electrolyte, comprises the steps:
(1) ammonium sebacate, ammonium pentaborate, sweet mellow wine, branched carboxylic acids, scintillation elevator, organic phosphoric acid, ortho-nitroanisole, ammonium hypophosphite and ethylene glycol is taken by the weight proportion of raw material;
(2) by ethylene glycol and the mixing of scintillation elevator, 85-95 DEG C of insulation 25-35min is heated to;
(3) add ammonium sebacate, ammonium pentaborate, sweet mellow wine, branched carboxylic acids and organic phosphoric acid successively again, be heated to 140-150 DEG C of insulation 1.5-2.5h, be chilled to 85-95 DEG C;
(4) add ortho-nitroanisole and ammonium hypophosphite again, be stirred to and be cooled to room temperature, the obtained high temperature resistant long life aluminum electrolytic capacitor of resistance to ripple electrolyte.
Preparation method's technique of the present invention is simple, and convenient operation and control, steady quality, production efficiency is high, and production cost is low, can large-scale industrial production.
Beneficial effect of the present invention is: electrolyte flash over voltage of the present invention can reach 510V, conductivity can reach 1.8ms/cm, there is good electrochemical properties, there is high temperature resistant, resistance to ripple and long-life advantage, can be applicable to the manufacture of aluminium electrolytic capacitor.
Electrolyte of the present invention also tool has the following advantages:
1, achieve and support that aluminium electrolytic capacitor can reliable continuation work 10000 hours the above object under the ambient temperature of-55 DEG C ~+155 DEG C.
2, larger ripple current can be born, be applicable to various large scale electronic equipment; In the endurance test of load life, have passed the examination of 105 DEG C of load 8000h during ripple current 1A, do not occur that lead-in wire burn into punctures, explosion-proof valve ftractures the situations such as even burning, there is high reliability.
3, substantially increase security performance and the useful life of capacitor, capacitor can not be blasted, explosion-proof valve cracking even burning etc. bad, rate of finished products is high, can reach more than 98%.
Preparation method's technique of the present invention is simple, and convenient operation and control, steady quality, production efficiency is high, and production cost is low, can large-scale industrial production.
Embodiment
For the ease of the understanding of those skilled in the art, below in conjunction with embodiment, the present invention is further illustrated, and the content that execution mode is mentioned not is limitation of the invention.
Embodiment 1
A kind of high temperature resistant long life aluminum electrolytic capacitor of resistance to ripple electrolyte, it is made up of the raw material of following weight portion:
Ammonium sebacate 4 parts
Ammonium pentaborate 1.5 parts
0.8 part, sweet mellow wine
Branched carboxylic acids 10 parts
Scintillation elevator 16 parts
Organic phosphoric acid 0.2 part
Ortho-nitroanisole 2.5 parts
Ammonium hypophosphite 0.2 part
Ethylene glycol 45 parts.
Described scintillation elevator reacts the obtained colloidal cpd with stereochemical structure by PVA and boric acid with weight ratio 1:1.8.
Described branched carboxylic acids is the model that Dongguan City Jiu Zhi Electronics Co., Ltd. produces is the branched carboxylic acids of JZ-01; Described organic phosphoric acid is the model that Dongguan City Jiu Zhi Electronics Co., Ltd. produces is the organic phosphoric acid of JZ-12.
The high temperature resistant long life aluminum electrolytic capacitor of a resistance to ripple preparation method for electrolyte, comprises the steps:
(1) ammonium sebacate, ammonium pentaborate, sweet mellow wine, branched carboxylic acids, scintillation elevator, organic phosphoric acid, ortho-nitroanisole, ammonium hypophosphite and ethylene glycol is taken by the weight proportion of raw material;
(2) by ethylene glycol and the mixing of scintillation elevator, 85 DEG C of insulation 35min are heated to;
(3) add ammonium sebacate, ammonium pentaborate, sweet mellow wine, branched carboxylic acids and organic phosphoric acid successively again, be heated to 140 DEG C of insulation 2.5h, be chilled to 85 DEG C;
(4) add ortho-nitroanisole and ammonium hypophosphite again, be stirred to and be cooled to room temperature, the obtained high temperature resistant long life aluminum electrolytic capacitor of resistance to ripple electrolyte.
Embodiment 2
A kind of high temperature resistant long life aluminum electrolytic capacitor of resistance to ripple electrolyte, it is made up of the raw material of following weight portion:
Ammonium sebacate 4.5 parts
Ammonium pentaborate 1.8 parts
0.9 part, sweet mellow wine
Branched carboxylic acids 11 parts
Scintillation elevator 17 parts
Organic phosphoric acid 0.25 part
Ortho-nitroanisole 2.8 parts
Ammonium hypophosphite 0.22 part
Ethylene glycol 50 parts.
Described scintillation elevator reacts the obtained colloidal cpd with stereochemical structure by PVA and boric acid with weight ratio 1:1.9.
Described branched carboxylic acids is the model that Dongguan City Jiu Zhi Electronics Co., Ltd. produces is the branched carboxylic acids of JZ-01; Described organic phosphoric acid is the model that Dongguan City Jiu Zhi Electronics Co., Ltd. produces is the organic phosphoric acid of JZ-12.
The high temperature resistant long life aluminum electrolytic capacitor of a resistance to ripple preparation method for electrolyte, comprises the steps:
(1) ammonium sebacate, ammonium pentaborate, sweet mellow wine, branched carboxylic acids, scintillation elevator, organic phosphoric acid, ortho-nitroanisole, ammonium hypophosphite and ethylene glycol is taken by the weight proportion of raw material;
(2) by ethylene glycol and the mixing of scintillation elevator, 88 DEG C of insulation 32min are heated to;
(3) add ammonium sebacate, ammonium pentaborate, sweet mellow wine, branched carboxylic acids and organic phosphoric acid successively again, be heated to 142 DEG C of insulation 2.2h, be chilled to 88 DEG C;
(4) add ortho-nitroanisole and ammonium hypophosphite again, be stirred to and be cooled to room temperature, the obtained high temperature resistant long life aluminum electrolytic capacitor of resistance to ripple electrolyte.
Embodiment 3
A kind of high temperature resistant long life aluminum electrolytic capacitor of resistance to ripple electrolyte, it is made up of the raw material of following weight portion:
Ammonium sebacate 5 parts
Ammonium pentaborate 2 parts
1 part, sweet mellow wine
Branched carboxylic acids 12 parts
Scintillation elevator 18 parts
Organic phosphoric acid 0.3 part
Ortho-nitroanisole 3 parts
Ammonium hypophosphite 0.25 part
Ethylene glycol 58.5 parts.
Described scintillation elevator reacts the obtained colloidal cpd with stereochemical structure by PVA and boric acid with weight ratio 1:2.
Described branched carboxylic acids is the model that Dongguan City Jiu Zhi Electronics Co., Ltd. produces is the branched carboxylic acids of JZ-01; Described organic phosphoric acid is the model that Dongguan City Jiu Zhi Electronics Co., Ltd. produces is the organic phosphoric acid of JZ-12.
The high temperature resistant long life aluminum electrolytic capacitor of a resistance to ripple preparation method for electrolyte, comprises the steps:
(1) ammonium sebacate, ammonium pentaborate, sweet mellow wine, branched carboxylic acids, scintillation elevator, organic phosphoric acid, ortho-nitroanisole, ammonium hypophosphite and ethylene glycol is taken by the weight proportion of raw material;
(2) by ethylene glycol and the mixing of scintillation elevator, 90 DEG C of insulation 30min are heated to;
(3) add ammonium sebacate, ammonium pentaborate, sweet mellow wine, branched carboxylic acids and organic phosphoric acid successively again, be heated to 145 DEG C of insulation 2h, be chilled to 90 DEG C;
(4) add ortho-nitroanisole and ammonium hypophosphite again, be stirred to and be cooled to room temperature, the obtained high temperature resistant long life aluminum electrolytic capacitor of resistance to ripple electrolyte.
Embodiment 4
A kind of high temperature resistant long life aluminum electrolytic capacitor of resistance to ripple electrolyte, it is made up of the raw material of following weight portion:
Ammonium sebacate 5.5 parts
Ammonium pentaborate 2.2 parts
1.1 parts, sweet mellow wine
Branched carboxylic acids 13 parts
Scintillation elevator 19 parts
Organic phosphoric acid 0.35 part
Ortho-nitroanisole 3.2 parts
Ammonium hypophosphite 0.28 part
Ethylene glycol 65 parts.
Described scintillation elevator reacts the obtained colloidal cpd with stereochemical structure by PVA and boric acid with weight ratio 1:2.1.
Described branched carboxylic acids is the model that Dongguan City Jiu Zhi Electronics Co., Ltd. produces is the branched carboxylic acids of JZ-01; Described organic phosphoric acid is the model that Dongguan City Jiu Zhi Electronics Co., Ltd. produces is the organic phosphoric acid of JZ-12.
The high temperature resistant long life aluminum electrolytic capacitor of a resistance to ripple preparation method for electrolyte, comprises the steps:
(1) ammonium sebacate, ammonium pentaborate, sweet mellow wine, branched carboxylic acids, scintillation elevator, organic phosphoric acid, ortho-nitroanisole, ammonium hypophosphite and ethylene glycol is taken by the weight proportion of raw material;
(2) by ethylene glycol and the mixing of scintillation elevator, 92 DEG C of insulation 28min are heated to;
(3) add ammonium sebacate, ammonium pentaborate, sweet mellow wine, branched carboxylic acids and organic phosphoric acid successively again, be heated to 148 DEG C of insulation 1.8h, be chilled to 92 DEG C;
(4) add ortho-nitroanisole and ammonium hypophosphite again, be stirred to and be cooled to room temperature, the obtained high temperature resistant long life aluminum electrolytic capacitor of resistance to ripple electrolyte.
Embodiment 5
A kind of high temperature resistant long life aluminum electrolytic capacitor of resistance to ripple electrolyte, it is made up of the raw material of following weight portion:
Ammonium sebacate 6 parts
Ammonium pentaborate 2.5 parts
1.2 parts, sweet mellow wine
Branched carboxylic acids 14 parts
Scintillation elevator 20 parts
Organic phosphoric acid 0.4 part
Ortho-nitroanisole 3.5 parts
Ammonium hypophosphite 0.3 part
Ethylene glycol 70 parts.
Described scintillation elevator reacts the obtained colloidal cpd with stereochemical structure by PVA and boric acid with weight ratio 1:2.2.
Described branched carboxylic acids is the model that Dongguan City Jiu Zhi Electronics Co., Ltd. produces is the branched carboxylic acids of JZ-01; Described organic phosphoric acid is the model that Dongguan City Jiu Zhi Electronics Co., Ltd. produces is the organic phosphoric acid of JZ-12.
The high temperature resistant long life aluminum electrolytic capacitor of a resistance to ripple preparation method for electrolyte, comprises the steps:
(1) ammonium sebacate, ammonium pentaborate, sweet mellow wine, branched carboxylic acids, scintillation elevator, organic phosphoric acid, ortho-nitroanisole, ammonium hypophosphite and ethylene glycol is taken by the weight proportion of raw material;
(2) by ethylene glycol and the mixing of scintillation elevator, 95 DEG C of insulation 25min are heated to;
(3) add ammonium sebacate, ammonium pentaborate, sweet mellow wine, branched carboxylic acids and organic phosphoric acid successively again, be heated to 150 DEG C of insulation 1.5h, be chilled to 95 DEG C;
(4) add ortho-nitroanisole and ammonium hypophosphite again, be stirred to and be cooled to room temperature, the obtained high temperature resistant long life aluminum electrolytic capacitor of resistance to ripple electrolyte.
The performance test of the electrolyte that embodiment 1-5 obtains is as shown in table 1:
Table 1
| Test event | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 |
| Flash over voltage (V) | 510 | 530 | 550 | 540 | 520 |
| Conductivity (ms/cm) | 1.8 | 2.2 | 2.6 | 2.4 | 2.0 |
As can be seen from Table 1, electrolyte flash over voltage of the present invention can reach 510V, and conductivity can reach 1.8ms/cm, has good electrochemical properties, has high temperature resistant, resistance to ripple and long-life advantage, can be applicable to the manufacture of aluminium electrolytic capacitor.
And the aluminium electrolytic capacitor adopting electrolyte of the present invention to obtain can reliably continuation work more than 10000 hours under the ambient temperature of-55 DEG C ~+155 DEG C, have have stable high-temperature performance, long-life feature.
In the endurance test of load life, have passed the examination of 105 DEG C of load 8000h during ripple current 1A, do not occur that lead-in wire burn into punctures, explosion-proof valve ftractures the situations such as even burning, there is high reliability.
Above-described embodiment is the present invention's preferably implementation, and in addition, the present invention can also realize by alternate manner, and any apparent replacement is all within protection scope of the present invention without departing from the inventive concept of the premise.
Claims (10)
1. the high temperature resistant long life aluminum electrolytic capacitor of a resistance to ripple electrolyte, is characterized in that: it is made up of the raw material of following weight portion:
Ammonium sebacate 4-6 part
Ammonium pentaborate 1.5-2.5 part
Sweet mellow wine 0.8-1.2 part
Branched carboxylic acids 10-14 part
Scintillation elevator 16-20 part
Organic phosphoric acid 0.2-0.4 part
Ortho-nitroanisole 2.5-3.5 part
Ammonium hypophosphite 0.2-0.3 part
Ethylene glycol 45-70 part.
2. the high temperature resistant long life aluminum electrolytic capacitor of the resistance to ripple electrolyte of one according to claim 1, is characterized in that: it is made up of the raw material of following weight portion:
Ammonium sebacate 4-5 part
Ammonium pentaborate 1.5-2 part
Sweet mellow wine 0.8-1 part
Branched carboxylic acids 10-12 part
Scintillation elevator 16-18 part
Organic phosphoric acid 0.2-0.3 part
Ortho-nitroanisole 2.5-3 part
Ammonium hypophosphite 0.2-0.25 part
Ethylene glycol 45-58.5 part.
3. the high temperature resistant long life aluminum electrolytic capacitor of the resistance to ripple electrolyte of one according to claim 1, is characterized in that: it is made up of the raw material of following weight portion:
Ammonium sebacate 4.5-5.5 part
Ammonium pentaborate 1.8-2.2 part
Sweet mellow wine 0.9-1.1 part
Branched carboxylic acids 11-13 part
Scintillation elevator 17-19 part
Organic phosphoric acid 0.25-0.35 part
Ortho-nitroanisole 2.8-3.2 part
Ammonium hypophosphite 0.22-0.28 part
Ethylene glycol 50-65 part.
4. the high temperature resistant long life aluminum electrolytic capacitor of the resistance to ripple electrolyte of one according to claim 1, is characterized in that: it is made up of the raw material of following weight portion:
Ammonium sebacate 5-6 part
Ammonium pentaborate 2-2.5 part
Sweet mellow wine 1-1.2 part
Branched carboxylic acids 12-14 part
Scintillation elevator 18-20 part
Organic phosphoric acid 0.3-0.4 part
Ortho-nitroanisole 3-3.5 part
Ammonium hypophosphite 0.25-0.3 part
Ethylene glycol 58.5-70 part.
5. the high temperature resistant long life aluminum electrolytic capacitor of the resistance to ripple electrolyte of one according to claim 1, is characterized in that: it is made up of the raw material of following weight portion:
Ammonium sebacate 4.5 parts
Ammonium pentaborate 1.8 parts
0.9 part, sweet mellow wine
Branched carboxylic acids 11 parts
Scintillation elevator 17 parts
Organic phosphoric acid 0.25 part
Ortho-nitroanisole 2.8 parts
Ammonium hypophosphite 0.22 part
Ethylene glycol 50 parts.
6. the high temperature resistant long life aluminum electrolytic capacitor of the resistance to ripple electrolyte of one according to claim 1, is characterized in that: it is made up of the raw material of following weight portion:
Ammonium sebacate 5 parts
Ammonium pentaborate 2 parts
1 part, sweet mellow wine
Branched carboxylic acids 12 parts
Scintillation elevator 18 parts
Organic phosphoric acid 0.3 part
Ortho-nitroanisole 3 parts
Ammonium hypophosphite 0.25 part
Ethylene glycol 58.5 parts.
7. the high temperature resistant long life aluminum electrolytic capacitor of the resistance to ripple electrolyte of one according to claim 1, is characterized in that: it is made up of the raw material of following weight portion:
Ammonium sebacate 5.5 parts
Ammonium pentaborate 2.2 parts
1.1 parts, sweet mellow wine
Branched carboxylic acids 13 parts
Scintillation elevator 19 parts
Organic phosphoric acid 0.35 part
Ortho-nitroanisole 3.2 parts
Ammonium hypophosphite 0.28 part
Ethylene glycol 65 parts.
8. the one according to any one of claim 1-7 the is high temperature resistant long life aluminum electrolytic capacitor of resistance to ripple electrolyte, is characterized in that: described scintillation elevator reacts the obtained colloidal cpd with stereochemical structure by PVA and boric acid with weight ratio 1:1.8-2.2.
9. the one according to any one of claim 1-7 the is high temperature resistant long life aluminum electrolytic capacitor of resistance to ripple electrolyte, is characterized in that: described branched carboxylic acids is the model that Dongguan City Jiu Zhi Electronics Co., Ltd. produces is the branched carboxylic acids of JZ-01; Described organic phosphoric acid is the model that Dongguan City Jiu Zhi Electronics Co., Ltd. produces is the organic phosphoric acid of JZ-12.
10. a kind of high temperature resistant long life aluminum electrolytic capacitor of the resistance to ripple preparation method of electrolyte as described in any one of claim 1-9, is characterized in that: comprise the steps:
(1) ammonium sebacate, ammonium pentaborate, sweet mellow wine, branched carboxylic acids, scintillation elevator, organic phosphoric acid, ortho-nitroanisole, ammonium hypophosphite and ethylene glycol is taken by the weight proportion of raw material;
(2) by ethylene glycol and the mixing of scintillation elevator, 85-95 DEG C of insulation 25-35min is heated to;
(3) add ammonium sebacate, ammonium pentaborate, sweet mellow wine, branched carboxylic acids and organic phosphoric acid successively again, be heated to 140-150 DEG C of insulation 1.5-2.5h, be chilled to 85-95 DEG C;
(4) add ortho-nitroanisole and ammonium hypophosphite again, be stirred to and be cooled to room temperature, the obtained high temperature resistant long life aluminum electrolytic capacitor of resistance to ripple electrolyte.
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| CN111524709A (en) * | 2020-04-27 | 2020-08-11 | 广东联盈控电子科技有限公司 | Working electrolyte for flame-retardant high-voltage aluminum electrolytic capacitor and preparation method thereof |
| CN111554513A (en) * | 2020-04-28 | 2020-08-18 | 安徽诚越电子科技有限公司 | Electrolyte for high-temperature-resistant aluminum electrolytic capacitor and aluminum electrolytic capacitor |
| CN111584240A (en) * | 2020-06-09 | 2020-08-25 | 贵州云睿电子科技有限公司 | Wide-temperature wide-pressure large-ripple-resistant electrolyte |
| CN111883363A (en) * | 2020-07-13 | 2020-11-03 | 南通星晨电子有限公司 | Capacitor electrolysis blending liquid and preparation method thereof |
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