CN104952623A - High-pressure aluminum electrolytic capacitor electrolyte for energy-saving lamp - Google Patents
High-pressure aluminum electrolytic capacitor electrolyte for energy-saving lamp Download PDFInfo
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- CN104952623A CN104952623A CN201510280919.5A CN201510280919A CN104952623A CN 104952623 A CN104952623 A CN 104952623A CN 201510280919 A CN201510280919 A CN 201510280919A CN 104952623 A CN104952623 A CN 104952623A
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Abstract
The invention discloses a high-pressure aluminum electrolytic capacitor electrolyte for an energy-saving lamp. The high-pressure aluminum electrolytic capacitor electrolyte is composed of 50-80 parts of mixed solvent, 10-25 parts of solute, 10-20 parts of high polymer additive, 1-5 parts of OP emulsifier and other components, the solute comprises 10-20 parts of ammonium sebacate and 5-15 parts of 1,7-ammonium sebacate, and the high polymer additive is one of or a combination of any of co-polymer poval, ethylene oxide and propylene oxide, polyethylene glycol and polypropylene glycol, electrical conductivity of the electrolyte is delta 40 DEG C is approximately equal to 2300uS/cm, flash-fire voltage of the electrolyte (90 DEG C) Us is larger than or equal to 490V, PH value (40 DEG C) of the electrolyte is equal to 7.0+/-0.5, and water content of the electrolyte is smaller than or equal to 3.5%.
Description
Technical field
The invention belongs to technical field of electrolyte, particularly relate to a kind of electricity-saving lamp high-pressure aluminum electrolytic capacitor electrolyte.
Background technology
Along with rapid economic development, current countries in the world energy scarcity problem becomes increasingly conspicuous, and energy savings, preserves the ecological environment that oneself is global development trend.Electricity electricity-saving lamp because having unique energy saving, highly to develop the color, the advantage pole such as specular removal and long-life favors by people, be widely used in the illuminations such as factory, market, hotel and family, market prospects are boundless.Electronic energy-saving lamp is because of its Special use environment, and first product shape is generally designed to compact, and long time continuous working, the heat that fluorescent tube produces causes wiring board temperature rise higher; Next is that lamp switch frequency is high, produces higher transient voltage, rush of current; Be there is comparatively high ripple current in electronic circuit again, capacitor self-heating amount is higher and operating voltage is high.For electronic energy-saving lamp key components aluminium electrolytic capacitor, above-mentioned environment for use is destroyed very serious to it, capacitor sole mass height directly affects the useful life of electronic energy-saving lamp.And the performance of Working electrolyte is the key factor affecting aluminium electrolytic capacitor quality, so prior art is all the quality by many ways improving electrolyte to improve or improve aluminium electrolytic capacitor mostly.
If application number is 201010154658.X, denomination of invention is the patent of a kind of Working electrolyte of aluminum electrolytic capacitor for energy-saving lamp and preparation method thereof, and in technical scheme disclosed in it, electrolyte comprises:
Ethylene glycol: 70% weight; Glycerol: 1% weight; The cruel ammonium sebacate of alkyl first: 18% weight; Azelaic acid hydrogen ammonium: 3.5% weight; Alkyl phosphate: 2% weight; Sweet mellow wine: 4% weight; P-nitrophenol: 1.5% weight.The shortcoming of this electrolyte is acid large, and flash over voltage is low, and conductivity is also low.
Such as application number is 201410175868 again, and denomination of invention is a kind of patent application of aluminum electrolytic capacitor electrolyte, and the weight proportion of each component of electrolyte disclosed in it is as follows:
Main electrolyte 10%-15%, assisted electrolysis matter 5%-10%, solvent 65%-73%, flash over voltage elevator 10%-20%, waterproof mixture 0.1%-I%, disappear hydrogen agent 0.1%-1%.The phosphoric acid system inorganic salts being used as waterproof mixture in its composition are very big on the impact of oxide-film resistance to water, although there is methanol effect, acidity is stronger, has certain corrosivity, be not suitable for high-voltage working electrolyte to oxide-film.
Summary of the invention
The technical problem to be solved in the present invention is for above-mentioned the deficiencies in the prior art, and provide that a kind of conductivity is high, flash over voltage is high, electrolyte PH value is in neutral and that moisture content is low electricity-saving lamp high-pressure aluminum electrolytic capacitor electrolyte.
For solving the problems of the technologies described above, the technical solution used in the present invention is:
A kind of electricity-saving lamp high-pressure aluminum electrolytic capacitor electrolyte, comprises following component:
Mixed solvent: 50-80 part;
Solute: 10-35 part;
High polymer additive: 10-20 part;
OP emulsifying agent: 1-5 part; And other,
Described mixed solvent comprises the main solvent of 40-60 part and the secondary solvent of 10-20%; Described solute comprises the ammonium sebacate of 10-20 part and 1, the 7-ammonium sebacate of 5-15 part; Described high polymer additive is a kind of or several arbitrarily combination of the copolymer of polyvinyl alcohol, oxirane and expoxy propane, polyethylene glycol, polypropylene glycol.
Also comprise one or more in the p-nitrophenol of 2-5 part, ortho-nitroanisole, a nitro second phthalein benzene and 1,4-benzoquinone.
Also comprise the ammonium hypophosphite of 1-2 part.
Described main solvent is ethanol, and described secondary solvent is the mixed liquor of diethylene glycol (DEG) and tributyl phosphate.
The preparation method of electricity-saving lamp high-pressure aluminum electrolytic capacitor electrolyte is: mixed solvent is heated to 70 DEG C, add part solute, after intensification makes solute dissolve completely, add high polymer additive, continue heating to make it to dissolve, then be down to and hot plate temperature, add residue solute, be incubated some hours, after adding OP emulsifying agent when being cooled to 100 DEG C, be down to room temperature
After the present invention adopts technique scheme, there is following technique effect:
Electrolyte has high conductivity, and it is wide to use the aluminium electrolytic capacitor made of electrolyte to have working temperature, and can use more than 5000h in the environment of 105 DEG C, and useful life is longer, meets the job requirement of electricity-saving lamp.
Electrolytic conductivity δ 40 DEG C of ≈ 2300 μ S/cm, electrolyte flash over voltage (90 DEG C) Us >=490V, electrolyte PH value (40 DEG C) PH=7.0 ± 0.5, electrolyte moisture≤3.5%.
Embodiment
For making the object of the application and technical scheme clearly, be clearly and completely described below in conjunction with the technical scheme of the embodiment of the present application to the application.Obviously, described embodiment is a part of embodiment of the application, instead of whole embodiments.Based on the embodiment of described the application, the every other embodiment that those of ordinary skill in the art obtain under without the need to the prerequisite of creative work, all belongs to the scope of the application's protection.
Embodiment 1
A kind of electricity-saving lamp high-pressure aluminum electrolytic capacitor electrolyte, comprises following component:
Ethanol 40 parts; Diethylene glycol (DEG) and tributyl phosphate 20 parts; Ammonium sebacate 15 parts; 1,7-ammonium sebacate 10 parts; Polyvinyl alcohol 10 parts; OP emulsifying agent 1 part; P-nitrophenol 2 parts; Ammonium hypophosphite 2 parts.
Ethylene glycol boiling point 197.9 DEG C, can well dissolve organic carboxyl acid and ammonium salt thereof, reduces bath resistance rate, and low price.But ethylene glycol solidifying point is a 12.6`C, when low temperature, electrolyte viscosity increases, and cause bath resistance rate to become large, and diethylene glycol (DEG), tributyl phosphate is as secondary solvent, have higher boiling point, low-freezing performance, are desirable high-temperature stable solvents.Adopt ethylene glycol to make main solvent, and suitably add diethylene glycol (DEG), tributyl phosphate formation mixed solvent system, make electrolyte have good resistance to elevated temperatures and low-temperature characteristics, under 105 celsius temperatures, there is lower saturated vapour pressure.Though tributyl phosphate is favourable to reduction product leakage current, what add can not be too much, otherwise can reduce the solubility of organic carboxyl acid ammonium salt, adds mass fraction and control within 15 parts.
Ammonium sebacate is that in main solvent system, solubility is no more than 5 parts at ethylene glycol, and adopt separately ammonium sebacate to do solute, consequently electrolytic conductivity is on the low side, and condenser loss is larger.1,7-ammonium sebacate, as branched organic carboxyl acid Long carbon chain ammonium salt, has good solubility in ethylene glycol solution, and because molecular diameter is large, steric effect is obvious, is not easily polymerized, the combination reaction such as esterification, has good chemical stability.
Add appropriate OP emulsifying agent in the electrolytic solution, the wetability of electrolyte to electrode, electrolytic paper can be improved, strengthen the penetrating power of electrolyte in anode foils hole, electrolytic paper, reduce product loss, improve product large ripple current-resistant ability.To the addition of OP emulsifying agent, should control below 5 parts, otherwise when product can be caused to store, step-up of leakage current is bigger than normal.
When oxide-film repaired by electrolyte, negative pole discharges hydrogen, and too much hydrogen can make voltage rise in product high, causes the product drum end or explosion-proof valve to be opened.For improving capacitor performance, add the p-nitrophenol as the hydrogen agent that disappears in the electrolytic solution, p-nitrophenol is due to inductive effect and conjugation acting in conjunction, and the hydrogen effect that disappears is more excellent, and to electrolyte flash over voltage, conductivity without negative effect.
Add a small amount of ammonium hypophosphite in the electrolytic solution, form the network-like aluminum phosphate rock layers of one deck on alumite surface and suppress hydrone to invade, the effect preventing oxide-film hydration can be reached, reduce product leakage current.
High polymer additive is to raising flash over voltage, and improving medium oxidizing membrane stability aspect has certain benefit.
The Working electrolyte performance parameter that above component configuration is formed is:
Electrolytic conductivity δ
40 DEG C≈ 2300 μ S/cm, electrolyte flash over voltage (90 DEG C) Us>=490V, electrolyte PH value (40 DEG C) PH=6.9 ± 0.5, electrolyte moisture≤3.5%, can reach more than 5000 hours through 105 DEG C of high temperature storage test life-spans.
Embodiment 2
Ethanol 60 parts; Diethylene glycol (DEG) and tributyl phosphate 10 parts; Ammonium sebacate 5 parts; 1,7-ammonium sebacate 2 parts; The copolymer of oxirane and expoxy propane 15 parts; OP emulsifying agent 5 parts; Ortho-nitroanisole 2 parts; Ammonium hypophosphite 1 part.
The Working electrolyte performance parameter that above component configuration is formed is:
Electrolytic conductivity δ
40 DEG C≈ 2500 μ S/cm, electrolyte flash over voltage (90 DEG C) Us>=490V, electrolyte PH value (40 DEG C) PH=7.0 ± 0.5, electrolyte moisture≤3.5%, can reach more than 5000 hours through 105 DEG C of high temperature storage test life-spans.
Embodiment 3
Ethanol 50 parts; Diethylene glycol (DEG) and tributyl phosphate 15 parts; Ammonium sebacate 15 parts; 1,7-ammonium sebacate 10 parts; Polypropylene glycol 5 parts; OP emulsifying agent 1 part; Between nitro second phthalein benzene 2 parts; Ammonium hypophosphite 2 parts.
The Working electrolyte performance parameter that above component configuration is formed is:
Electrolytic conductivity δ
40 DEG C≈ 2700 μ S/cm, electrolyte flash over voltage (90 DEG C) Us>=490V, electrolyte PH value (40 DEG C) PH=7.1 ± 0.5, electrolyte moisture≤3.5%, can reach more than 5000 hours through 105 DEG C of high temperature storage test life-spans.
Those skilled in the art of the present technique are appreciated that unless otherwise defined, and all terms used herein (comprising technical term and scientific terminology) have the meaning identical with the general understanding of the those of ordinary skill in field belonging to the application.Should also be understood that those terms defined in such as general dictionary should be understood to have the meaning consistent with the meaning in the context of prior art, unless and define as here, can not explain by idealized or too formal implication.
The implication of the "and/or" described in the application refers to respective individualism or both simultaneous situations include interior.
With the above-mentioned desirable embodiment according to the application for enlightenment, by above-mentioned description, relevant staff in the scope not departing from this application technological thought, can carry out various change and amendment completely.The technical scope of this application is not limited to the content on specification, must determine its technical scope according to right.
Claims (5)
1. an electricity-saving lamp high-pressure aluminum electrolytic capacitor electrolyte, is characterized in that, comprises following component:
Mixed solvent: 50-80 part;
Solute: 10-35 part;
High polymer additive: 10-20 part;
OP emulsifying agent: 1-5 part; And other,
Described mixed solvent comprises the main solvent of 40-60 part and the secondary solvent of 10-20%; Described solute comprises the ammonium sebacate of 10-20 part and 1, the 7-ammonium sebacate of 5-15 part; Described high polymer additive is a kind of or several arbitrarily combination of the copolymer of polyvinyl alcohol, oxirane and expoxy propane, polyethylene glycol, polypropylene glycol.
2. electricity-saving lamp high-pressure aluminum electrolytic capacitor electrolyte according to claim 1, is characterized in that, also comprises one or more in the p-nitrophenol of 2-5 part, ortho-nitroanisole, a nitro second phthalein benzene and 1,4-benzoquinone.
3. the electricity-saving lamp high-pressure aluminum electrolytic capacitor electrolyte according to claim 1 or 2 any one, is characterized in that, also comprise the ammonium hypophosphite of 1-2 part.
4. electricity-saving lamp high-pressure aluminum electrolytic capacitor electrolyte according to claim 1, is characterized in that, described main solvent is ethanol, and described secondary solvent is the mixed liquor of diethylene glycol (DEG) and tributyl phosphate.
5. the preparation method of an electricity-saving lamp high-pressure aluminum electrolytic capacitor electrolyte as claimed in claim 1 is: mixed solvent is heated to 70 DEG C, add part solute, after intensification makes solute dissolve completely, add high polymer additive, continue heating to make it to dissolve, then be down to and hot plate temperature, add residue solute, be incubated some hours, after adding OP emulsifying agent when being cooled to 100 DEG C, be down to room temperature.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510280919.5A CN104952623A (en) | 2015-05-28 | 2015-05-28 | High-pressure aluminum electrolytic capacitor electrolyte for energy-saving lamp |
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| CN201510280919.5A CN104952623A (en) | 2015-05-28 | 2015-05-28 | High-pressure aluminum electrolytic capacitor electrolyte for energy-saving lamp |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106449103A (en) * | 2016-08-31 | 2017-02-22 | 湖南艾华集团股份有限公司 | Dedicated electrolyte for ultralow-temperature aluminium electrolytic capacitor |
| CN106783178A (en) * | 2016-11-30 | 2017-05-31 | 中南大学 | Working electrolyte for aluminium electrolytic capacitor of low temperature resistant and high pressure and preparation method thereof |
| CN110648848A (en) * | 2019-09-19 | 2020-01-03 | 肇庆绿宝石电子科技股份有限公司 | 115 ℃ large ripple current resistant aluminum electrolytic capacitor |
| CN112382508A (en) * | 2020-11-23 | 2021-02-19 | 深圳市智胜新电子技术有限公司 | Electrolyte of aluminum electrolytic capacitor, preparation method thereof and aluminum electrolytic capacitor |
| CN114284072A (en) * | 2022-01-07 | 2022-04-05 | 深圳奥凯普电容器有限公司 | Electrolyte for capacitor with wide temperature range, preparation method of electrolyte and capacitor |
-
2015
- 2015-05-28 CN CN201510280919.5A patent/CN104952623A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106449103A (en) * | 2016-08-31 | 2017-02-22 | 湖南艾华集团股份有限公司 | Dedicated electrolyte for ultralow-temperature aluminium electrolytic capacitor |
| CN106783178A (en) * | 2016-11-30 | 2017-05-31 | 中南大学 | Working electrolyte for aluminium electrolytic capacitor of low temperature resistant and high pressure and preparation method thereof |
| CN110648848A (en) * | 2019-09-19 | 2020-01-03 | 肇庆绿宝石电子科技股份有限公司 | 115 ℃ large ripple current resistant aluminum electrolytic capacitor |
| CN112382508A (en) * | 2020-11-23 | 2021-02-19 | 深圳市智胜新电子技术有限公司 | Electrolyte of aluminum electrolytic capacitor, preparation method thereof and aluminum electrolytic capacitor |
| CN112382508B (en) * | 2020-11-23 | 2022-07-19 | 深圳市智胜新电子技术有限公司 | Electrolyte of aluminum electrolytic capacitor, preparation method thereof and aluminum electrolytic capacitor |
| CN114284072A (en) * | 2022-01-07 | 2022-04-05 | 深圳奥凯普电容器有限公司 | Electrolyte for capacitor with wide temperature range, preparation method of electrolyte and capacitor |
| CN114284072B (en) * | 2022-01-07 | 2024-03-29 | 深圳奥凯普电容器有限公司 | Electrolyte for capacitor with wide temperature range, preparation method of electrolyte and capacitor |
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Application publication date: 20150930 |