CN106067526B - One kind safeguarding the explosion-proof cracking method of lead-acid accumulator less - Google Patents
One kind safeguarding the explosion-proof cracking method of lead-acid accumulator less Download PDFInfo
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- CN106067526B CN106067526B CN201610676450.1A CN201610676450A CN106067526B CN 106067526 B CN106067526 B CN 106067526B CN 201610676450 A CN201610676450 A CN 201610676450A CN 106067526 B CN106067526 B CN 106067526B
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- accumulator
- lead
- acid accumulator
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- acid
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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
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/30—Arrangements for facilitating escape of gases
-
- 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
-
- 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
-
- 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
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
One kind safeguarding the explosion-proof cracking method of lead-acid accumulator less, safeguard that inside keeps carbon dioxide gas to lead-acid accumulator full of carbon dioxide gas and during safeguarding lead-acid accumulator use less using its inside is preceding made including few, wherein, safeguard that the volume for the carbon dioxide that lead-acid accumulator is generated using its preceding internal-response is more than or equal to 1.2 times of accumulator chamber volume less.Using the method for the present invention, accumulator can be made to be forced to be discharged by fire-retardant gas using the hydrogen and oxygen generated during preceding and use.Once accumulator occur since misoperation, electrostatic or battery internal defect generate open fire, or be introduced from outside into open fire, since internal hydrogen concentration is very low, accumulator burst conditions will not occur, effectively increase few safety safeguarded lead-acid accumulator and used.
Description
Technical field
The present invention relates to a kind of storage battery production methods, especially safeguard the explosion-proof cracking method of lead-acid accumulator less, belong to electric power storage
Pool technology field.
Background technology
With the rapid development of auto industry, automobile is gradually popularized enters family.The sales volume of lead-acid accumulator is climbed year by year
It rises, more and more users touch lead-acid accumulator product.Lead-acid accumulator is illuminating, the application in the non-vehicle field such as power supply
It is more and more.Safeguard that lead-acid accumulator is opening band blow cock structure less, dry-charged dispatches from the factory without liquid, before user uses accumulator
Sulfuric acid electrolyte is injected, requires supplementation with electrolyte in use.Increase recently as few dosage for safeguarding lead-acid accumulator
Add, expose some safety issues in use, according to incompletely statistics, automobile storage battery producer has 50-100ppm's every year
Decrepitation Phenomena can occur in use for product.Lead-acid accumulator bursts, and will produce acid solution and plastic flakes splash, gently then cause people
People's masses' property loss, it is heavy then jeopardize personal safety, bring huge economic loss and negative society to storage battery production producer
It can influence, be major accumulator producer very headache weight and safety issue urgently to be resolved hurrily.
Lead-acid accumulator follows " bis sulfonateization is theoretical ", in battery charging process, when monomer voltage is higher than 2.25V just
Have hydrogen and oxygen evolution caused by electrolysis water.After tested, under 25 DEG C of environment, 14.40V constant-voltage charges, few dimension of 120Ah
Shield accumulator generates about 1260ml hydrogen and oxygen gas mixtures per hour, and with the raising of temperature, this speed can also increase.Due to lead
Acid accumulator structural relation, the hydrogen and oxygen of generation cannot be completely exhausted out battery outer, when in accumulator hydrogen it is dense
Degree reaches 4-74%, just has the possibility of explosion.Safeguard although lead-acid accumulator is designed with back-fire relief air filter piece and gas vent less,
But during accumulator use, since misoperation, electrostatic or battery internal defect are likely to generate open fire, it is also possible to
It is introduced from outside into open fire, lighting hydrogen and oxygen gas mixture causes accumulator to burst.
Invention content
It is an object of the invention to be directed to the drawback of the prior art, one kind is provided and safeguards lead-acid accumulator explosion-proof side less
Lead-acid accumulator internal hydrogen storage capacity and concentration can be greatly reduced using this method in method, be conducive to hydrogen produced by charging
Quick discharge, and completely cut off inside spark, battery effectively prevent to burst.
Problem of the present invention is realized with following technical proposals：
One kind safeguarding the explosion-proof cracking method of lead-acid accumulator less, including few safeguards lead-acid accumulator using preceding making to be full of inside it
It carbon dioxide gas and safeguards internal during lead-acid accumulator use keep carbon dioxide gas less, wherein safeguard lead less
The volume for the carbon dioxide that acid accumulator is generated using its preceding internal-response is more than or equal to 1.2 times of accumulator chamber volume.
It is above-mentioned to safeguard the explosion-proof cracking method of lead-acid accumulator less, it is described to safeguard that lead-acid accumulator is full of dioxy using preceding inside less
Change carbon gas methods, is to launch Carbon Dioxide sodium powder in each single lattice of cell jar before accumulator pole group assembling grove
End, the interior natrium carbonicum calcinatum powder weight of launching of each single lattice control according to the following formula：
Powdered sodium carbonate weight >=accumulator chamber volume × 1.28,
The unit of accumulator chamber volume is L in formula, and the unit of natrium carbonicum calcinatum powder weight is g；
Accumulator is before use, injection sulfuric acid electrolyte, sulfuric acid electrolyte react generation highdensity two with natrium carbonicum calcinatum
The air of internal storage battery is discharged carbon oxide gas.
Above-mentioned to safeguard the explosion-proof cracking method of lead-acid accumulator less, internal holding is fire-retardant during safeguarding lead-acid accumulator use less
The method of gas is as follows：It is few safeguard lead-acid accumulator add replenisher when, using a concentration of 2% sodium bicarbonate aqueous solution as benefit
Filling liquid is added in accumulator.
The present invention targetedly proposes solution according to few the reason of safeguarding lead-acid accumulator explosion：I.e. in few maintenance
During lead-acid accumulator is using preceding and use, keep it internal full of carbon dioxide gas, due to the density of carbon dioxide gas
It is larger, and the air of internal storage battery, oxygen, hydrogen density are small, inside battery air, oxygen, hydrogen will be extruded accumulator,
Internal storage battery gas chamber is occupied by carbon dioxide gas.The hydrogen and oxygen generated during accumulator use is by carbon dioxide gas
Body forces discharge.Once there is accumulator since misoperation, electrostatic or battery internal defect generate open fire, or it is introduced from outside into
When open fire, since internal hydrogen concentration is very low, accumulator burst conditions will not occur, effectively increase and few safeguard lead-acid accumulator
The safety used.
Specific implementation mode
The innovation of the present invention is：During lead-acid accumulator is using preceding and use, keep it internal full of highly dense
The carbon dioxide gas of degree.Verification experimental verification uses the method for the present invention, hydrogen, oxygen and the air generated in accumulator to be all forced
Discharge.Since internal hydrogen concentration is very low, accumulator burst conditions will not occur, thus effectively increase the safety of battery.
The method of the present invention includes safeguarding lead-acid accumulator using preceding making it internal full of carbon dioxide gas and few dimension less
Inside keeps carbon dioxide gas during protecting lead-acid accumulator use.The density of carbon dioxide gas is 1.977kg/m3, hydrogen
The density of gas is 0.0899kg/m3, the density of air is 1.293kg/m3, the density of oxygen is 1.429kg/m3.Carbon dioxide gas
The density of body is more than hydrogen, oxygen, air, can hydrogen, oxygen, air be squeezed out accumulator in internal storage battery, make electric power storage
Pond gas chamber is occupied by carbon dioxide gas.
Low-maintenance battery is opening band blow cock structure, and dry charged battery dispatches from the factory without liquid.Before making accumulator use
Inner space (gas chamber) is full of carbon dioxide, and the method that the present invention uses is before accumulator pole group assembling grove, in each storage
Cell negative terminal trench bottom launches a certain amount of carbonate, and there are in the saddle horn of cell jar bottom, then carry out pole group's dress for carbonate
The assembly of slot and battery.Common carbonate is mainly sodium carbonate (Na2CO3) and sodium bicarbonate (NaHCO3), sodium carbonate
(Na2CO3) more sodium sulphate (Na can be generated with less addition2SO4), while improving the safety of accumulator,
The effect of inhibiting partition board infiltration is played, so the present invention selects natrium carbonicum calcinatum powder.User before accumulator using injecting sulfuric acid
Electrolyte, natrium carbonicum calcinatum and sulfuric acid generate reaction such as following formula：Na2CO3+H2SO4===Na2SO4+H2O+CO2↑, the two of generation
The air of internal storage battery is discharged carbonoxide.
The present invention is obtained by calculating with validation trial：The additive amount of natrium carbonicum calcinatum in each single lattice slot of accumulator >=
Accumulator chamber volume × 1.28.The unit of accumulator chamber volume is L in formula, and the unit of natrium carbonicum calcinatum weight is g.According to
Above formula adds natrium carbonicum calcinatum, and the volume of the carbon dioxide gas of generation is more than 1.2 times of chamber volume, it is ensured that by gas chamber
Interior hydrogen, oxygen, air are completely exhausted out.
Accumulator in use, although carbon dioxide is far above atmospheric density, but still understands some and is lost in discharge
Accumulator, while accumulator water consumption also results in inner plenum increasing, it is of the present invention to safeguard lead acid storage battery less for this problem
The internal method for keeping fire-retardant gas is as follows during the use of pond：Water consumption liquid level drops to minimum liquid to accumulator in use
When upper thread, it is added in accumulator as replenisher using a concentration of 2% (mass percent) sodium bicarbonate aqueous solution, by liquid level tune
To highest metal line.Accumulator replenisher is the dilution heat of sulfuric acid of purified water or extra-low density at present, is in neutrality substantially or weak
It is acid.The present invention is using 2% sodium bicarbonate aqueous solution of concentration as replenisher the reason is that, sodium bicarbonate in replenisher
(NaHCO3) react such as following formula with electrolyte：2NaHCO3+H2SO4===Na2SO4+2H2O+2CO2↑, generate carbon dioxide
(CO2) and sodium sulphate (Na2SO4), while carbon dioxide gas in supplementing gas chamber, the sodium sulphate of generation is beneficial to accumulator
It is harmless.
Several specific embodiments of the present invention presented below：
Claims (2)
1. one kind safeguarding the explosion-proof cracking method of lead-acid accumulator less, it is characterised in that：Safeguard lead-acid accumulator using preceding making including few
It is internal, and full of carbon dioxide gas and during safeguarding lead-acid accumulator use less, inside keeps carbon dioxide gas,
In, safeguard that the volume for the carbon dioxide that lead-acid accumulator is generated using its preceding internal-response is more than or equal to accumulator chamber volume less
1.2 times；Safeguard less lead-acid accumulator using preceding inside be full of carbon dioxide gas body method, be accumulator pole group assembling grove it
Before, natrium carbonicum calcinatum powder is launched in each single lattice of cell jar, is launched natrium carbonicum calcinatum powder weight in each single lattice and is pressed
It is controlled according to following formula：
Powdered sodium carbonate weight >=accumulator chamber volume × 1.28,
The unit of accumulator chamber volume is L in formula, and the unit of natrium carbonicum calcinatum weight is g；
For accumulator before use, injection sulfuric acid electrolyte, sulfuric acid electrolyte is reacted with natrium carbonicum calcinatum generates highdensity titanium dioxide
The air of internal storage battery is discharged carbon gas.
2. according to claim 1 safeguard the explosion-proof cracking method of lead-acid accumulator less, it is characterised in that：Lead acid storage battery is safeguarded less
The internal method for keeping fire-retardant gas is as follows during the use of pond：It is few safeguard lead-acid accumulator add replenisher when, with concentration
It is added in accumulator as replenisher for 2% sodium bicarbonate aqueous solution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610676450.1A CN106067526B (en) | 2016-08-17 | 2016-08-17 | One kind safeguarding the explosion-proof cracking method of lead-acid accumulator less |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610676450.1A CN106067526B (en) | 2016-08-17 | 2016-08-17 | One kind safeguarding the explosion-proof cracking method of lead-acid accumulator less |
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| Publication Number | Publication Date |
|---|---|
| CN106067526A CN106067526A (en) | 2016-11-02 |
| CN106067526B true CN106067526B (en) | 2018-09-18 |
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| CN201610676450.1A Active CN106067526B (en) | 2016-08-17 | 2016-08-17 | One kind safeguarding the explosion-proof cracking method of lead-acid accumulator less |
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Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100550501C (en) * | 2004-03-26 | 2009-10-14 | 松下电器产业株式会社 | The keeping method of lead accumulator and lead accumulator |
| BRPI0917697A2 (en) * | 2008-08-14 | 2017-07-11 | Aic Blab Company | METHOD FOR REDUCING THE MIGRATION OF AN ELECTROLYTE IN A BIPOLAR LEAD ACID BATTERY, BIPOLAR LEAD ACID BATTERY. |
| DE102013200734A1 (en) * | 2013-01-18 | 2014-07-24 | Robert Bosch Gmbh | Device for providing safety measures for e.g. fighting against fire during gas release from damaged lithium-ion accumulator for hybrid vehicle, has generators partially filling elements with respective nitrogen gas and carbon dioxide gas |
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Effective date of registration: 20200426 Address after: 063100 west of Tanglin North Road, Guye District, Tangshan City, Hebei Province Patentee after: Tangshan Fengfan Hongwen Battery Co., Ltd Address before: 071057 Hebei province Baoding Fuchang Road No. 8 Patentee before: FENGFAN Co.,Ltd. |