CN110336086A - A kind of pregnant solution type lead storage battery chemical synthesis technology and lead storage battery - Google Patents
A kind of pregnant solution type lead storage battery chemical synthesis technology and lead storage battery Download PDFInfo
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- CN110336086A CN110336086A CN201910488364.1A CN201910488364A CN110336086A CN 110336086 A CN110336086 A CN 110336086A CN 201910488364 A CN201910488364 A CN 201910488364A CN 110336086 A CN110336086 A CN 110336086A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/06—Lead-acid accumulators
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/06—Lead-acid accumulators
- H01M10/12—Construction or manufacture
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
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Abstract
The present invention relates to lead storage battery fields, provide a kind of pregnant solution type lead storage battery chemical synthesis technology and lead storage battery, chemical synthesis technology be will charge ampere-hour number press lead plaster weight and polarity distribution, by the charge volume of 0.5~0.7Ah/g of anode diachylon it is total charge volume of battery, then the charge volume of 0.28~0.32Ah/g of cathode lead plaster is decomposed from total charge volume；The first step is quantized by the charging of 0.28~0.32Ah/g of cathode lead plaster, and second step is melted into 76~82% ratios of remaining total charge volume, and third step is melted into 18~24% ratios of remaining total charge volume, positive plate PbO after Battery formation2Content and negative plate Pb content are above common process, have better charge-discharge performance, increase the service life of battery.
Description
Technical field
The invention belongs to lead storage battery fields, are related to a kind of pregnant solution type lead storage battery chemical synthesis technology, in particular to a kind of richness
Flooded lead-acid battery chemical synthesis technology and lead storage battery.
Background technique
The formation charging of lead-acid accumulator is that electronics from anode flows to cathode, such as attached drawing 1, when positive plate is melted into, PbO2's
Formation process and negative plate are not exactly the same, and first since grid muscle closest at solution, but the PbO generated2Form net
Network surrounds lead sulfate, in each small lattice of grid, PbO2Generation since surrounding is from the grid muscle gradually in Xiang little Ge
The heart promotes, and at later period besieged lead sulfate and each small center of a lattice, lead plaster is just fully converted to PbO2.Fig. 1 is positive,
Cathode is in formation process, active material PbO2With the growth state of lead.
Therefore, because positive/negative plate chemical conversion direction is different, always negative plate is first completed to be melted into, and chemical conversion is completed after positive plate.
Summary of the invention
The purpose of the present invention is being directed to the above-mentioned problems in the prior art, a kind of pregnant solution type lead storage battery is provided
At technique and lead storage battery.
Object of the invention can be realized by the following technical scheme: a kind of pregnant solution type lead storage battery chemical synthesis technology will fill
Electric ampere-hour number presses the weight and polarity distribution of lead plaster, is total charging of battery by the charge volume of 0.5~0.7Ah/g of anode diachylon
Amount, then the charge volume of 0.28~0.32Ah/g of cathode lead plaster is decomposed from total charge volume；
Chemical synthesis technology the following steps are included:
S1, battery rated capacity, positive plate lead paste amount, negative plate lead plaster amount, positive plate the piece number, negative plate the piece number are determined；
S2, total chemical conversion amount being calculated, formula is, total chemical conversion amount=positive plate lead paste amount × positive plate the piece number × 0.5~
0.7Ah/g；
S3, first step formation charging amount is calculated, formula is first step formation charging amount=negative plate lead plaster amount × negative plate
The piece number × 0.28~0.32Ah/g；
S4, second step formation charging amount is calculated, formula is second step formation charging amount=(total chemical conversion amount-first step chemical conversion
Charge volume) × 76~82%；
S5, third step formation charging amount is calculated, formula is third step formation charging amount=(total chemical conversion amount-first step chemical conversion
Charge volume) × 18~24%；
S6, start formation charging；
First stage: first step formation charging amount is filled with into battery；
Second stage: stop charging and standing；
Phase III: second step formation charging amount is filled with into battery；
Fourth stage: stop charging and standing；
5th stage: third step formation charging amount is filled with into battery.
Anode diachylon can be calculated by 0.5~0.7Ah/g, and chemical conversion is to carry out calculated result with electric current and time, less than 0.5
When, then it represents that increase the chemical conversion time, be unfavorable for the production of big specification, therefore be proposed with 0.5~0.7Ah/g calculating；Greater than 0.7
When, when chemical conversion, can generate heat because electric current is excessive, cause security risk.Similarly, cathode lead plaster can be by 0.28~0.32Ah/
G is calculated, because cathode is relatively easily melted into, range should not be too big.
Lead storage battery is positive limit appearance in most cases, therefore positive cream amount is more than negative cream amount, and first step chemical conversion is paid the utmost attention to bear
Cream is after first step chemical conversion, not represent negative cream because the cream that is negative is less than positive cream and negative cream is relatively easily melted into and all turn
Change and complete, but after the first step is melted into, the degree that cathode is melted into centainly is greater than positive cream, so when positive cream have quite a few
It needs urgently to be melted into, i.e. second step formation charging amount=(total chemical conversion amount-first step formation charging amount) × 76~82%.Similarly,
Third step formation charging amount=(total chemical conversion amount-first step formation charging amount) × 18~24%.
Preferably, being total charge volume of battery by the charge volume of anode diachylon 0.5Ah/g.
Preferably, the charge volume of cathode lead plaster 0.28Ah/g is decomposed from total charge volume.
Preferably, second step formation charging amount=(total chemical conversion amount-first step formation charging amount) × 80%.
Preferably, third step formation charging amount=(total chemical conversion amount-first step formation charging amount) × 20%.
Preferably, the time that second stage is stood is 1.5~3 hours in the step S6.
Preferably, the time that fourth stage is stood is 1~2 hour in the step S6.
Preferably, the chemical synthesis technology is used for the chemical conversion of 46B24R size battery.
Preferably, battery acid adding density is 1.00~1.30g/mL (25 DEG C).The conversion process of active material in chemical conversion
It is related with sulfuric acid concentration used.When using very dilute sulfuric acid or metabisulfite solution as forming liquid, positive plate also can as negative plate that
The conversion of sample, active material is extended from polar board surface to pole plate depths, but can reduce chemical conversion speed.
Preferably, battery acid adding density is 1.19g/mL (25 DEG C).
Preferably, acid adding amount 450~500mL/ single lattice.
Preferably, acid adding amount 480mL/ single lattice.
A kind of pregnant solution type lead storage battery is melted into using above-mentioned chemical synthesis technology.
Compared with prior art, the invention has the following advantages that
1, the first step of the present invention is quantized by the charging of cathode lead plaster 0.28Ah/g, and second step is by remaining total charge volume
The chemical conversion of 76~82% ratios, third step are melted into 18~24% ratios of remaining total charge volume, positive plate after Battery formation
PbO2Content and negative plate Pb content are above common process, have better charge-discharge performance, increase the service life of battery.
2, because of positive plate PbO2Content and negative plate Pb content are above common process, thus battery have it is good primary
Energy.
3, it is designed because of chemical synthesis technology using substep rest formula, effectively buffers the activation polarization phenomenon of charging process, make
Active material conversion more evenly, more thoroughly, be conducive to the extension of battery.
4, during because of entire chemical synthesis technology, do not use high current, thus the temperature of formation process control at 40 DEG C hereinafter,
The vaporization at high temperature phenomenon of organics additive in effective protection cathode lead plaster, is conducive to the maintenance of battery cryogenic property.
Detailed description of the invention
Fig. 1 is the conversion direction of lead plaster in chemical conversion.
Specific embodiment
The following is specific embodiments of the present invention, and technical scheme of the present invention will be further described, but the present invention is simultaneously
It is not limited to these embodiments.
1, battery size: 46B24R, rated capacity 45Ah.Monomer pole plate the piece number+5/-6, positive plate lead paste amount 88g/ piece,
Negative plate lead plaster amount 60g/ piece.
2, battery acid adding density 1.19g/mL (25 DEG C), acid adding amount 480mL/ single lattice.
3, formation charging amount calculates:
3.1, it is melted into total charge volume: 88 × 5 × 0.5=220Ah
3.2, first step formation charging amount: 60 × 6 × 0.28=100.8Ah ≈ 101Ah
3.3, second step formation charging amount: (220-101) × 0.8=95.2Ah ≈ 95Ah
3.4, second step formation charging amount: (220-101) × 0.2=23.8Ah ≈ 24Ah
4, formation charging technique:
Because positive plate is 5, and connected for parallel way.Although first step chemical synthesis technology is charged by cathode lead plaster amount,
But electric current from anode flows to cathode when charging, every charging current takes 3A, therefore takes 15A electric current, and because the first step is melted into work
It is 101Ah that skill, which designs charge volume, therefore the time takes 7h.15 × 7=105 > 101 indicates that charging is reasonable.Such as larger than 15A can accelerate
Polarization, temperature rise are fast, and the vaporization at high temperature phenomenon of the organics additive in cathode lead plaster occurs, such as less than 15A, can extend production week
The defects of phase.
The first, third, the magnitude of current in the 5th stage are gradually reduced, and are because battery temperature is affirmed after first stage chemical conversion
It can rise, if do not reduced electric current at this time, it is necessary to cause temperature to continue to increase, be unfavorable for being melted into, most with positive plate the piece number
Big common divisor carrys out design current amperage, can preferably complete charge technology.
The relationship of lead storage battery capacity and voltage is in a linear relationship, when battery discharges under fullcharging electricity condition, with constant current
Electric discharge, slowly, mid-life voltage decline accelerates, and later period voltage declines sharply for initial voltage decline.Similarly, if with first stage electricity
Constant-current charge is flowed, with the passage of chemical conversion time, voltage is steeply risen, and activation polarization increases, while one part of current can generate
Electrolysis water, therefore use drop streaming chemical synthesis technology, it is therefore an objective to the voltage of balanced formation process rises voltage steady, also reduces
The phenomenon that electrolysis water.
5, it tests
Battery after taking 15 chemical conversions, does correlation test, comparing result is as follows:
5.1, anode diachylon PbO2Content table, cathode lead plaster Pb content balance table:
By upper table it is known that via the battery that Battery formation technique of the present invention produces, positive plate PbO2Content is higher than general
Logical technique 7.56%, negative plate Pb content are higher than common process 4.91%, positive plate PbO2Content and negative plate Pb content are high
In common process, therefore battery has good initial performance and charge-discharge performance；Chemical synthesis technology is designed using substep rest formula, is had
Effect ground buffering charging process activation polarization phenomenon, make active material convert more evenly, more thoroughly, be conducive to battery use
Life-time dilatation；During entire chemical synthesis technology, do not use high current, thus the temperature of formation process control at 40 DEG C hereinafter,
The vaporization at high temperature phenomenon of organics additive in effective protection cathode lead plaster, is conducive to the maintenance of battery cryogenic property.
5.2,20hr capacity comparison table:
20hr capacity is to carry out deep discharge to battery with the current value of rated capacity value 1/20, is that detection Battery formation is
A no thorough index, the prolonged discharge mode of low current is very strict to active material slew rate requirement, if chemical conversion
It is not thorough, indicates that the content of lead sulfate is high, cannot thoroughly release electricity in the case of deep discharge, therefore battery obtained by new process
There is good 20hr capacity.
350A current discharge (is large current discharge, also known as high-multiplying power discharge), i.e., has more reactants in a short time
It participates in, can just release more electricity, it is desirable that while Battery formation is thorough, active material will be evenly distributed, granular size
Uniformly, standards of measurement are 30s cell voltage >=7.2V, and the battery voltage value as 30s is higher, indicate that battery performance is better.
As can be seen that the performance of new process is apparently higher than common process from upper table data, it is the reasonable layout because of forming current, makes
H in electrolyte+And SO42-Movement velocity and electronics movement velocity keep relative equilibrium, i.e., effectively control electrochemistry pole
Temperature control in change and formation process effectively improves the uniform conversion degree of active material.
According to the disclosure and teachings of the above specification, those skilled in the art in the invention can also be to above-mentioned embodiment party
Formula carries out change and modification appropriate.Therefore, the invention is not limited to the specific embodiments disclosed and described above, to this
Some modifications and changes of invention should also be as falling into the scope of the claims of the present invention.In addition, although this specification
In use some specific terms, these terms are merely for convenience of description, does not limit the present invention in any way.
Claims (10)
1. a kind of pregnant solution type lead storage battery chemical synthesis technology, which is characterized in that will charge weight and polarity point of the ampere-hour number by lead plaster
Cloth is total charge volume of battery by the charge volume of 0.5~0.7Ah/g of anode diachylon, then by 0.28~0.32Ah/g of cathode lead plaster
Charge volume decomposed from total charge volume；
Chemical synthesis technology the following steps are included:
S1, battery rated capacity, positive plate lead paste amount, negative plate lead plaster amount, positive plate the piece number, negative plate the piece number are determined；
S2, total chemical conversion amount is calculated, formula is total chemical conversion amount=positive plate lead paste amount × positive plate the piece number × 0.5~0.7Ah/g；
S3, first step formation charging amount is calculated, formula is first step formation charging amount=negative plate lead plaster amount × negative plate the piece number
× 0.28~0.32Ah/g；
S4, second step formation charging amount is calculated, formula is second step formation charging amount=(total chemical conversion amount-first step formation charging
Amount) × 76~82%；
S5, third step formation charging amount is calculated, formula is third step formation charging amount=(total chemical conversion amount-first step formation charging
Amount) × 18~24%；
S6, start formation charging；
First stage: first step formation charging amount is filled with into battery；
Second stage: stop charging and standing；
Phase III: second step formation charging amount is filled with into battery；
Fourth stage: stop charging and standing；
5th stage: third step formation charging amount is filled with into battery.
2. a kind of pregnant solution type lead storage battery chemical synthesis technology according to claim 1, which is characterized in that in the step S2,
Total chemical conversion amount=positive plate lead paste amount × positive plate the piece number × 0.5Ah/g.
3. a kind of pregnant solution type lead storage battery chemical synthesis technology according to claim 1, which is characterized in that in the step S3,
First step formation charging amount=negative plate lead plaster amount × negative plate the piece number × 0.28Ah/g.
4. a kind of pregnant solution type lead storage battery chemical synthesis technology according to claim 1, which is characterized in that in the step S4,
Second step formation charging amount=(total chemical conversion amount-first step formation charging amount) × 80%.
5. a kind of pregnant solution type lead storage battery chemical synthesis technology according to claim 1, which is characterized in that in the step S5,
Third step formation charging amount=(total chemical conversion amount-first step formation charging amount) × 20%.
6. a kind of pregnant solution type lead storage battery chemical synthesis technology according to claim 1, which is characterized in that in the step S6,
The time that second stage is stood is 1.5~3 hours；The time that fourth stage is stood is 1~2 hour.
7. a kind of pregnant solution type lead storage battery chemical synthesis technology according to claim 1, which is characterized in that battery acid adding density is
1.00~1.30g/mL (25 DEG C).
8. a kind of pregnant solution type lead storage battery chemical synthesis technology according to claim 1 or 5, which is characterized in that acid adding amount 450~
500mL/ single lattice.
9. a kind of pregnant solution type lead storage battery chemical synthesis technology according to claim 1, which is characterized in that the chemical synthesis technology is used
In the chemical conversion of 46B24R size battery.
10. a kind of pregnant solution type lead storage battery, which is characterized in that using chemical synthesis technology described in any one of claim 1~8
Chemical conversion.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111600079A (en) * | 2020-01-19 | 2020-08-28 | 超威电源集团有限公司 | Method for manufacturing storage battery |
| CN112786976A (en) * | 2021-02-02 | 2021-05-11 | 天能电池集团股份有限公司 | Formation method of AGM valve-controlled lead storage battery |
| CN114122334A (en) * | 2021-10-28 | 2022-03-01 | 天能电池集团股份有限公司 | Gradient type lead accumulator positive plate and accumulator |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111600079A (en) * | 2020-01-19 | 2020-08-28 | 超威电源集团有限公司 | Method for manufacturing storage battery |
| CN112786976A (en) * | 2021-02-02 | 2021-05-11 | 天能电池集团股份有限公司 | Formation method of AGM valve-controlled lead storage battery |
| CN112786976B (en) * | 2021-02-02 | 2022-06-21 | 天能电池集团股份有限公司 | Formation method of AGM valve-controlled lead storage battery |
| CN114122334A (en) * | 2021-10-28 | 2022-03-01 | 天能电池集团股份有限公司 | Gradient type lead accumulator positive plate and accumulator |
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