CN104952622A - Method of purifying electrolyte of aluminum electrolytic capacitor - Google Patents
Method of purifying electrolyte of aluminum electrolytic capacitor Download PDFInfo
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- CN104952622A CN104952622A CN201510279976.1A CN201510279976A CN104952622A CN 104952622 A CN104952622 A CN 104952622A CN 201510279976 A CN201510279976 A CN 201510279976A CN 104952622 A CN104952622 A CN 104952622A
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Abstract
The invention discloses a method of purifying electrolyte of an aluminum electrolytic capacitor. The method is characterized mainly in that an anode and a cathode are added in the electrolyte which is good in electric conductivity and are electrified through a power supply, the presence of impurity and harmful ions in the electrolyte leads to the increase in resistance, the higher resistance leads to a potential difference between the anode and the cathode, the harmful ions and impurity in the electrolyte move in their opposite polar directions and attach to the anode and the cathode, the first process is finished by purifying the anode and the cathode, and the application requirement is met by repeating the process. Therefore, charge-discharge life is longer, the service life is longer than 8000 hours, and leak current is small. The method is used for high-definition camera equipment for road monitoring and safety camera equipment, has great social benefit, and is convenient to implement, low in cost and higher in practicality.
Description
Technical field
The invention belongs to electronic industry, particularly relate to a kind of aluminum electrolytic capacitor electrolyte method of purification.
Background technology
There is the electrolyte storing electric charge the inside of electrolytic capacitor, and point positive and negative polarity, is similar to battery, can not connect anti-.Just very be stained with the metal substrate of oxide-film, negative pole is connected with electrolyte (solid is with non-solid) by metal polar plate.
Nonpolarity (bipolarity) electrolytic capacitor adopts dual oxide membrane structure, be similar to two only have polarity electrolytic capacitor to be connected by two negative poles after form, two electrode is respectively two metal polar plates (being all stained with oxide-film) being connected, and is electrolyte in the middle of two groups of oxide-films.Polarity electrolytic capacitor is had usually in power circuit or intermediate frequency, low-frequency channel, to play power filter, the effects such as the setting of decoupling, signal coupling and time constant, stopping direct current.Non-polarized electrolytic capacitor is generally used for the starting circuit of audio frequency dividers circuit, television set S correcting circuit and single-phase motor.
Current aluminum electrolytic capacitor electrolyte is formulated for voltage (as high pressure, middle pressure, low pressure), and the aluminium electrolytic capacitor for special requirement can not arrive requirement, and existing needs are purified decontamination further, directly use and have following not enough point:
(1) flash over voltage is high;
(2) discharge and recharge number of times is low;
(3) low for useful life in high frequency time discharge and recharge;
(4) leakage current is large.
Summary of the invention
In order to solve the problem, the invention provides one according to aluminum electrolytic capacitor electrolyte configuring condition for high frequency, the commercial power container of low-resistance, purifies further and makes its electrical property arrive requirement, the technical scheme that reduction flash over voltage, raising discharge and recharge number of times increase the service life:
A kind of aluminum electrolytic capacitor electrolyte method of purification comprises the following steps:
(1) electrolyte is added: throw in specifying in reaction vessel by manual for electrolyte;
(2) energising pressurization: adopt electrode for capacitors leftover pieces to be cut into two electrode bars, electrode bar is put into below reaction vessel liquid level of electrolyte as both positive and negative polarity, carries out positive and negative reverse energising respectively;
(3) electrolysis adsorption reaction: holding electrode rod power-on voltage 40 ~ 60V, electrical current is 0.5 ~ 2.5mA, carries out electrolysis adsorption reaction;
(4) propose both positive and negative polarity: after energising 25 ~ 35min, deenergization, takes out electrode bar;
(5) filter: by reacted electrolyte, conveniently technique is stand-by after carrying out filtration.
As preferably, electrolyte is mixed according to mass ratio 155 ~ 165:6 ~ 10:14 ~ 18:11 ~ 15:4 ~ 6:1 ~ 3:75 ~ 85:5 ~ 7 by ethylene glycol, diethylene glycol (DEG), ammonium pentaborate, SA ammonium, high-temperature stabiliser, 3-nitroacetophenone, 17 SA ammoniums and dodecandioic acid ammonium.
As preferably, electrode bar length is 10 ~ 20cm, and width is that below reaction vessel liquid level of electrolyte 2 ~ 5cm position put into by the rectangular electrode rod of 0.5 ~ 2.5cm, and electrode bar bottom is apart from reaction container bottom surface 0.5 ~ 2.0cm.
Beneficial effect of the present invention is:
The present invention mainly utilizes electrolyte to be electric good conducting, add both positive and negative polarity in the electrolytic solution and powered up by power supply, increase owing to having impurity and harmful ion resistance in electrolyte is that both positive and negative polarity to have in current potential official post electrolyte harmful ion and impurity to respective opposite polarity motion and is adsorbed on electrode, purification electrode completes a process, this process reaches instructions for use repeatedly, thus discharge and recharge number of times is increased, in more than 8000 hours useful life, leakage current is little.The method is used for road monitoring high-definition camera equipment, on safe picture pick-up device, has social benefit widely, and it realizes convenient, and cost is low, has stronger practicality.
Accompanying drawing explanation
Fig. 1 is present invention process flow chart.
Embodiment
For making goal of the invention of the present invention, technical scheme and advantage clearly, below in conjunction with accompanying drawing, embodiments of the present invention are described in further detail.
Embodiment 1
As shown in Figure 1, a kind of aluminum electrolytic capacitor electrolyte method of purification of the present invention comprises the following steps:
(1) electrolyte is added: throw in specifying in reaction vessel by manual for electrolyte;
(2) energising pressurization: adopt electrode for capacitors leftover pieces to be cut into two electrode bars, electrode bar is put into below reaction vessel liquid level of electrolyte as both positive and negative polarity, carries out positive and negative reverse energising respectively;
(3) electrolysis adsorption reaction: holding electrode rod power-on voltage 40 ~ 60V, electrical current is 0.5 ~ 2.5mA, carries out electrolysis adsorption reaction;
(4) propose both positive and negative polarity: after energising 25 ~ 35min, deenergization, takes out electrode bar;
(5) filter: by reacted electrolyte, conveniently technique is stand-by after carrying out filtration.
Simultaneously, electrolyte is wherein mixed according to mass ratio 155 ~ 165:6 ~ 10:14 ~ 18:11 ~ 15:4 ~ 6:1 ~ 3:75 ~ 85:5 ~ 7 by ethylene glycol, diethylene glycol (DEG), ammonium pentaborate, SA ammonium, high-temperature stabiliser, 3-nitroacetophenone, 17 SA ammoniums and dodecandioic acid ammonium.
Electrode bar length is 10 ~ 20cm, and width is that below reaction vessel liquid level of electrolyte 2 ~ 5cm position put into by the rectangular electrode rod of 0.5 ~ 2.5cm, and electrode bar bottom is apart from reaction container bottom surface 0.5 ~ 2.0cm.
The present invention mainly utilizes electrolyte to be electric good conducting, add both positive and negative polarity in the electrolytic solution and powered up by power supply, increase owing to having impurity and harmful ion resistance in electrolyte is that both positive and negative polarity to have in current potential official post electrolyte harmful ion and impurity to respective opposite polarity motion and is adsorbed on electrode, purification electrode completes a process, this process reaches instructions for use repeatedly, thus discharge and recharge number of times is increased, in more than 5000 ~ 7000 hours useful life, leakage current is little.The method is used for road monitoring high-definition camera equipment, on safe picture pick-up device, has social benefit widely, and it realizes convenient, and cost is low, has stronger practicality.
Embodiment 2
On the basis of embodiment 1, aluminum electrolytic capacitor electrolyte method of purification comprises the following steps:
(1) electrolyte is added: throw in specifying in reaction vessel by manual for electrolyte;
(2) energising pressurization: adopt electrode for capacitors leftover pieces to be cut into two electrode bars, electrode bar is put into below reaction vessel liquid level of electrolyte as both positive and negative polarity, carries out positive and negative reverse energising respectively;
(3) electrolysis adsorption reaction: holding electrode rod power-on voltage 45 ~ 55V, electrical current is 1.0 ~ 2.0mA, carries out electrolysis adsorption reaction;
(4) propose both positive and negative polarity: after energising 30min, deenergization, takes out electrode bar;
(5) filter: by reacted electrolyte, conveniently technique is stand-by after carrying out filtration.
Compared to embodiment 1, the electrolyte result of use of being purified by embodiment 2 is better, and discharge and recharge number of times is increased, and in more than 8000 hours useful life, leakage current is little.
Above-described embodiment is preferred embodiment of the present invention; it is not the restriction to technical solution of the present invention; as long as without the technical scheme that creative work can realize on the basis of above-described embodiment, all should be considered as falling within the scope of the rights protection of patent of the present invention.
Claims (3)
1. an aluminum electrolytic capacitor electrolyte method of purification, is characterized in that: comprise the following steps:
Add electrolyte: throw in specifying in reaction vessel by manual for electrolyte;
Energising pressurization: adopt electrode for capacitors leftover pieces to be cut into two electrode bars, electrode bar is put into below reaction vessel liquid level of electrolyte as both positive and negative polarity, carries out positive and negative reverse energising respectively;
Electrolysis adsorption reaction: holding electrode rod power-on voltage 40 ~ 60V, electrical current is 0.5 ~ 2.5mA, carries out electrolysis adsorption reaction;
Propose both positive and negative polarity: after energising 25 ~ 35min, deenergization, takes out electrode bar;
Filter: by reacted electrolyte, conveniently technique is stand-by after carrying out filtration.
2. a kind of aluminum electrolytic capacitor electrolyte method of purification according to claim 1, is characterized in that: described electrolyte is mixed according to mass ratio 155 ~ 165:6 ~ 10:14 ~ 18:11 ~ 15:4 ~ 6:1 ~ 3:75 ~ 85:5 ~ 7 by ethylene glycol, diethylene glycol (DEG), ammonium pentaborate, SA ammonium, high-temperature stabiliser, 3-nitroacetophenone, 17 SA ammoniums and dodecandioic acid ammonium.
3. a kind of aluminum electrolytic capacitor electrolyte method of purification according to claim 1, it is characterized in that: described electrode bar length is 10 ~ 20cm, width is that below reaction vessel liquid level of electrolyte 2 ~ 5cm position put into by the rectangular electrode rod of 0.5 ~ 2.5cm, and electrode bar bottom is apart from reaction container bottom surface 0.5 ~ 2.0cm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510279976.1A CN104952622A (en) | 2015-05-28 | 2015-05-28 | Method of purifying electrolyte of aluminum electrolytic capacitor |
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| CN201510279976.1A CN104952622A (en) | 2015-05-28 | 2015-05-28 | Method of purifying electrolyte of aluminum electrolytic capacitor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117080491A (en) * | 2023-10-18 | 2023-11-17 | 液流储能科技有限公司 | Purification method of electrolyte of flow battery |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001003196A (en) * | 1999-06-17 | 2001-01-09 | Nippon Light Metal Co Ltd | Method for cleaning boric and electrolyte and cleaning device therefor |
| CN1688005A (en) * | 2005-04-30 | 2005-10-26 | 张家港市国泰华荣化工新材料有限公司 | Purifying technique for super-capacitor electrolyte |
| JP2009009920A (en) * | 2007-06-26 | 2009-01-15 | Mase Shunzo | Refining method of electrolyte for lead battery and regenerating method of members |
| CN103938228A (en) * | 2014-03-26 | 2014-07-23 | 湖南水口山有色金属集团有限公司 | Purifying method for removing impurities metal ions in lead electrolyte and anode slime washing water |
-
2015
- 2015-05-28 CN CN201510279976.1A patent/CN104952622A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001003196A (en) * | 1999-06-17 | 2001-01-09 | Nippon Light Metal Co Ltd | Method for cleaning boric and electrolyte and cleaning device therefor |
| CN1688005A (en) * | 2005-04-30 | 2005-10-26 | 张家港市国泰华荣化工新材料有限公司 | Purifying technique for super-capacitor electrolyte |
| JP2009009920A (en) * | 2007-06-26 | 2009-01-15 | Mase Shunzo | Refining method of electrolyte for lead battery and regenerating method of members |
| CN103938228A (en) * | 2014-03-26 | 2014-07-23 | 湖南水口山有色金属集团有限公司 | Purifying method for removing impurities metal ions in lead electrolyte and anode slime washing water |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117080491A (en) * | 2023-10-18 | 2023-11-17 | 液流储能科技有限公司 | Purification method of electrolyte of flow battery |
| CN117080491B (en) * | 2023-10-18 | 2024-02-09 | 液流储能科技有限公司 | Purification method of electrolyte of flow battery |
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Application publication date: 20150930 |