CN110187224A - A kind of characterization device and method of electrode foil coating mass - Google Patents
A kind of characterization device and method of electrode foil coating mass Download PDFInfo
- Publication number
- CN110187224A CN110187224A CN201910504872.4A CN201910504872A CN110187224A CN 110187224 A CN110187224 A CN 110187224A CN 201910504872 A CN201910504872 A CN 201910504872A CN 110187224 A CN110187224 A CN 110187224A
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- Prior art keywords
- electrode foil
- test
- coating mass
- power supply
- fluid
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
- G01N27/416—Systems
- G01N27/48—Systems using polarography, i.e. measuring changes in current under a slowly-varying voltage
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/003—Environmental or reliability tests
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
Abstract
The invention discloses a kind of characterization device and method of electrode foil coating mass, including being integrated with power supply output control, the test macro that data acquire, electric current and voltage are shown, test macro positive and negative anodes are connected with electrode foil plate and measurement slot, it measures and is equipped with test fluid in slot, electrode foil plate part is located at test fluid liquid level hereinafter, measurement slot is circulation, temperature control fluid infusion system.The invention has the advantages that 1, test voltage, electric current, time can be set, test fluid can deploy according to demand, the seasoned process of analog capacitor producer, life test process, the stability of coating mass in the case of simulation is powered for a long time；2, test process power supply exports reliable and stable, test fluid uniformity, test process whole process record, and drafting is easy to compare with output leakage current curve；3, it is small to measure unit area leakage current, identification is high, and interindividual variation is small, and reproducibility is good.
Description
Technical field
The present invention relates to a kind of characterization device and method of electrode foil for aluminum electrolytic capacitors coating mass.
Background technique
Aluminium electrolutic capacitor occupies larger share in Power capacitor industry with quality-high and inexpensive characteristic, but life problems are always
Since be the greatest problem for perplexing aluminium electrolutic capacitor, electrode foil is as core material therein, coating mass and aluminium electricity
The service life of electrolysis condenser is closely related.
The production of electrode foil for aluminum electrolytic capacitors mainly includes two big processes of corrosion and chemical conversion, is existed in formation process
A variety of chemical conversion systems can be divided mainly into inorganic acid system, Organic Acid System and inorganic acid and organic acid mixed system three categories,
And wherein most with the subdivision system of inorganic acid and organic acid mixed system, the difference in these subdivision system bracket groove body positions
Different, the difference of the control parameters such as temperature, conductivity, the difference of inorganic acid, organic acid content all can be to electrode foil coating mass
It affects.
Aluminium electrolutic capacitor by materials such as electrode foil (cathode foil), anode foil, electrolyte, electrolytic papers according to design requirement
Seasoned, detection is carried out after being assembled together, until shipment, different in conventional load life test and high-temperature storage test
The capacitor of system electrode foil (cathode foil) manufacture, has differences in terms of the service life.The influence that capacitor life-span has differences because
Plain very much, the cooperation of electrode foil and electrolyte is major influence factors, and evaluating capacitor performance at present is still to carry out service life examination
Based on testing, for capacitor manufacturer, there are the problem of first is that test period is long, input cost is high, second is that if encountering the service life
Unacceptable situation is tested, brings difficulty to design and type selecting；For electrode foil supplier, first is that it is waiting for a long time, two
It is if encountering the unacceptable situation of life test, it is difficult to be quickly found out ameliorative way.Capacitor manufacturer and electrode foil are supplied
Shang Eryan is answered, a kind of evaluation method of electrode foil coating mass is badly in need of, what is generally taken in the industry is the leakage current to electrode foil
It is tested.
Before this, the drain current test method of electrode foil for aluminum electrolytic capacitors is: first soaking print (10mm*50mm)
Enter in 70g/L boric acid test fluid, make to be tested partially below 3~5mm of liquid level, electric current is tested by 2mA to print, when pressure resistance reaches
Continuing constant current 180s after the 90% of specification voltage Vf, setting LC measures voltage VL=0.9Vf, in pressure stabilizing 180s under measuring voltage
Electric current is print LC, unit μ A/5cm2.
The problem is that: 1, the data after testing 180s using pressure stabilizing are tested as final result, pilot process does not record,
It can not contrast test process leakage current downward trend；2, test gained unit area leakage data is integrally bigger than normal, and individual
Between difference it is big, reproducibility is poor；3, test electric current is fixed, can not be during the seasoned process of analog capacitor producer, life test
The different electric currents of appearance charge and the application scenarios of ripple current load.
Summary of the invention
To solve above-mentioned difficulties, the present invention it is innovative a kind of electrode foil for aluminum electrolytic capacitors coating mass is provided
Characterizing method.
For achieving the above object, the present invention adopts the following technical scheme: a kind of characterization of electrode foil coating mass
Equipment, including power supply, the positive and negative anodes of power supply are controlled with computer to be connected with acquisition system, power supply and ammeter, electrode foil plate and survey
Determine slot series connection, it is in parallel with voltmeter, test fluid is equipped in measurement slot, electrode foil plate part is located at test fluid liquid level hereinafter, measurement
Slot is circulation, temperature control fluid infusion system.
A kind of characterizing method of electrode foil coating mass, steps are as follows: electrode foil plate is connected with the mains anode, by ammeter
It is connected serially to circuit, voltmeter is connected in parallel to circuit, measurement slot is added into appropriate test fluid, sets test temperature, circulation is opened, mends
Liquid device, powers on input charging current, and stage setting test voltage value tests the electric leakage of electrode foil plate different voltages value
Stream, at different temperatures, provides the charging current of different current densities, adjusts interim pressure stabilizing value, tests under different time
Electrode foil plate leakage current and draw curve graph.
Preferably, electrode foil plate is having a size of 50 × 100mm.
Preferably, test fluid is 10g~70g/L boric acid solution or inorganic acid, dicarboxylic acids class organic acid reagent, necessity
The additives such as Shi Tianjia alcohols, phenyl ring class.
Preferably, power supply is capable of providing the output of 0~1000V voltage, 0~100mA electric current any combination.
Preferably, the control of test fluid test temperature is at 25 DEG C~135 DEG C.
The present invention has following the utility model has the advantages that 1, test voltage, electric current, time can be set, analog capacitor producer
Seasoned process, life test process, the stability of coating mass in the case of simulation is powered for a long time；2, test process power supply is defeated
Reliable and stable out, test fluid uniformity, test process whole process record is drawn and is easy to compare with output leakage current curve；3, it surveys
It is small to obtain unit area leakage current, identification is high, and interindividual variation is small, and reproducibility is good.
Detailed description of the invention
Fig. 1 is the principle of the present invention figure；
Fig. 2 is electrode foil current-leakage test curve；
Figure label: 1- power supply, the control of 2- computer and acquisition system, 3- ammeter, 4- electrode foil plate, 5- measure slot, 6- voltage
Table.
Specific embodiment
The present invention is described in further details below by embodiment, these embodiments are only used to illustrate the present invention, and
It does not limit the scope of the invention:
A kind of characterization equipment of electrode foil coating mass of the present invention, including power supply 1, positive and negative anodes and the computer control of power supply 1 with
Acquisition system 2 is connected, and power supply 1 is connected with ammeter 3, electrode foil plate 4 and measurement slot 5, in parallel with voltmeter 6, measures and sets in slot 5
There is test fluid, 4 part of electrode foil plate is located at test fluid liquid level hereinafter, measurement slot 5 is circulation, temperature control fluid infusion system.
A kind of characterizing method of electrode foil coating mass, steps are as follows: electrode foil plate 4 connect with the mains 1 anode, by electric current
Table 3 is connected serially to circuit, and voltmeter 6 is connected in parallel to circuit, and measurement slot 5 is added appropriate test fluid, sets test temperature, unlatching follows
Ring, liquid supply device, power on 1 input charging current, and stage setting test voltage value tests 4 different voltages of electrode foil plate
The leakage current of value provides the charging current of different current densities at different temperatures, adjusts interim pressure stabilizing value, test is not
With the electrode foil plate 4 under the time leakage current and draw curve graph.
Electrode foil plate 4 is having a size of 50 × 100mm.
Test fluid is 10g~70g/L boric acid solution or inorganic acid, dicarboxylic acids class organic acid reagent, adds alcohol when necessary
The additives such as class, phenyl ring class.
Power supply 1 is capable of providing the output of 0~1000V voltage, 0~100mA electric current any combination, precision 0.01%；.Computer
Specific software is installed and controls power-supply system, voltage, the charging of electric current output program simulation electrode paillon 4 and work shape can be worked out
State；Data collection system acquires data in 1Hz~100Hz frequency, and is connected with computer, will test data upload in real time, complete
The pressure resistance of whole record, the surveyed electrode foil plate 4 of statistics and leakage data are simultaneously depicted as curve
Circulation, temperature control and fluid infusion system guarantee that test fluid is uniform and stable, constant liquid level, and test fluid test temperature is controlled at 25 DEG C
~135 DEG C, precision 0.5%.
It need to provide under several specific temperatures, the charging current value of different current densities is provided, adjust interim pressure stabilizing
Value, tests the leakage current value of the electrode foil plate 4 under different time, and tabulates.
It is taken in two electrode foil current-leakage test curve of figure and table is a little made, it was demonstrated that the source of figure two.
Claims (6)
1. a kind of characterization equipment of electrode foil coating mass, it is characterised in that: including power supply (1), the power supply (1) it is positive and negative
Pole is controlled with computer to be connected with acquisition system (2), the power supply (1) and ammeter (3), electrode foil plate (4) and measurement slot (5) string
Connection, it is in parallel with voltmeter (6), test fluid is equipped in the measurement slot (5), the electrode foil plate (4) is partially located at test fluid liquid
Face is hereinafter, the measurement slot (5) is circulation, temperature control fluid infusion system.
2. a kind of characterizing method of electrode foil coating mass, it is characterised in that: steps are as follows: electrode foil plate (4) is connected with the mains
(1) positive, ammeter (3) is connected serially to circuit, voltmeter (6) is connected in parallel to circuit, by the appropriate test of measurement slot (5) addition
Liquid sets test temperature, opens circulation, liquid supply device, powers on (1) input charging current, stage setting test voltage
The leakage current of value, test electrode foil plate (4) different voltages value provides the charging current of different current densities at different temperatures,
Interim pressure stabilizing value is adjusted, the leakage current for the electrode foil plate (4) tested under different time simultaneously draws curve graph.
3. a kind of characterizing method of electrode foil coating mass according to claim 2, it is characterised in that: the electrode foil
Piece (4) is having a size of 50 × 100mm.
4. a kind of characterizing method of electrode foil coating mass according to claim 2, it is characterised in that: the test fluid
For 10g~70g/L boric acid solution or inorganic acid, dicarboxylic acids class organic acid reagent.
5. a kind of characterizing method of electrode foil coating mass according to claim 2, it is characterised in that: the power supply
(1) it is capable of providing the output of 0~1000V voltage, 0~100mA electric current any combination.
6. a kind of characterizing method of electrode foil coating mass according to claim 2, it is characterised in that: the test fluid
Test temperature is controlled at 25 DEG C~135 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910504872.4A CN110187224A (en) | 2019-06-12 | 2019-06-12 | A kind of characterization device and method of electrode foil coating mass |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910504872.4A CN110187224A (en) | 2019-06-12 | 2019-06-12 | A kind of characterization device and method of electrode foil coating mass |
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| CN110187224A true CN110187224A (en) | 2019-08-30 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005085778A (en) * | 2003-09-04 | 2005-03-31 | Matsushita Electric Ind Co Ltd | Process for manufacturing aluminium electrolytic capacitor, and connection resistance inspecting device employing it |
| CN201111711Y (en) * | 2007-10-15 | 2008-09-10 | 田锡公 | Complete digital network aluminum foil intelligent detecting device |
| CN101718806A (en) * | 2009-01-12 | 2010-06-02 | 深圳江浩电子有限公司 | Testing device and testing method for spark voltage of electrolyte under non-critical state |
| CN201654151U (en) * | 2010-04-20 | 2010-11-24 | 深圳中元电子有限公司 | High-power and high-frequency pulse aging apparatus for medium- and high-voltage aluminum electrolytic capacitor |
| CN105699810A (en) * | 2016-02-29 | 2016-06-22 | 珠海格力电器股份有限公司 | Electrolytic capacitor in-circuit test device and method |
-
2019
- 2019-06-12 CN CN201910504872.4A patent/CN110187224A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005085778A (en) * | 2003-09-04 | 2005-03-31 | Matsushita Electric Ind Co Ltd | Process for manufacturing aluminium electrolytic capacitor, and connection resistance inspecting device employing it |
| CN201111711Y (en) * | 2007-10-15 | 2008-09-10 | 田锡公 | Complete digital network aluminum foil intelligent detecting device |
| CN101718806A (en) * | 2009-01-12 | 2010-06-02 | 深圳江浩电子有限公司 | Testing device and testing method for spark voltage of electrolyte under non-critical state |
| CN201654151U (en) * | 2010-04-20 | 2010-11-24 | 深圳中元电子有限公司 | High-power and high-frequency pulse aging apparatus for medium- and high-voltage aluminum electrolytic capacitor |
| CN105699810A (en) * | 2016-02-29 | 2016-06-22 | 珠海格力电器股份有限公司 | Electrolytic capacitor in-circuit test device and method |
Non-Patent Citations (1)
| Title |
|---|
| 蒋美连: ""铝阳极氧化膜的耐水合特性研究"", 《中国优秀博硕士学位论文全文数据库 (硕士) 工程科技Ⅱ辑》 * |
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