CN105428606B - A kind of battery curing process - Google Patents
A kind of battery curing process Download PDFInfo
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- CN105428606B CN105428606B CN201510769144.8A CN201510769144A CN105428606B CN 105428606 B CN105428606 B CN 105428606B CN 201510769144 A CN201510769144 A CN 201510769144A CN 105428606 B CN105428606 B CN 105428606B
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- 238000000034 method Methods 0.000 title claims abstract description 47
- 230000008569 process Effects 0.000 title claims abstract description 42
- 238000007711 solidification Methods 0.000 claims abstract description 31
- 230000008023 solidification Effects 0.000 claims abstract description 31
- 238000001035 drying Methods 0.000 claims abstract description 22
- 230000003020 moisturizing effect Effects 0.000 claims abstract description 12
- 239000011505 plaster Substances 0.000 claims description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 238000001723 curing Methods 0.000 abstract description 19
- 239000000463 material Substances 0.000 abstract description 9
- 238000013008 moisture curing Methods 0.000 abstract description 2
- 239000011149 active material Substances 0.000 description 15
- 239000002253 acid Substances 0.000 description 14
- 239000012071 phase Substances 0.000 description 10
- 239000000126 substance Substances 0.000 description 10
- 230000018044 dehydration Effects 0.000 description 7
- 238000006297 dehydration reaction Methods 0.000 description 7
- 239000003365 glass fiber Substances 0.000 description 7
- HTUMBQDCCIXGCV-UHFFFAOYSA-N lead oxide Chemical compound [O-2].[Pb+2] HTUMBQDCCIXGCV-UHFFFAOYSA-N 0.000 description 6
- 230000003647 oxidation Effects 0.000 description 6
- 238000007254 oxidation reaction Methods 0.000 description 6
- 210000004027 cell Anatomy 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 238000004458 analytical method Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 239000000084 colloidal system Substances 0.000 description 4
- 239000000470 constituent Substances 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000006071 cream Substances 0.000 description 3
- 239000003792 electrolyte Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 3
- YEXPOXQUZXUXJW-UHFFFAOYSA-N oxolead Chemical compound [Pb]=O YEXPOXQUZXUXJW-UHFFFAOYSA-N 0.000 description 3
- 238000005192 partition Methods 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- KEQXNNJHMWSZHK-UHFFFAOYSA-L 1,3,2,4$l^{2}-dioxathiaplumbetane 2,2-dioxide Chemical compound [Pb+2].[O-]S([O-])(=O)=O KEQXNNJHMWSZHK-UHFFFAOYSA-L 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000006253 efflorescence Methods 0.000 description 2
- 238000003487 electrochemical reaction Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical group 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 238000004886 process control Methods 0.000 description 2
- 206010037844 rash Diseases 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 229910052924 anglesite Inorganic materials 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000006701 autoxidation reaction Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- OJIJEKBXJYRIBZ-UHFFFAOYSA-N cadmium nickel Chemical compound [Ni].[Cd] OJIJEKBXJYRIBZ-UHFFFAOYSA-N 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 150000002926 oxygen Chemical class 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 210000000352 storage cell Anatomy 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/14—Electrodes for lead-acid accumulators
- H01M4/16—Processes of manufacture
- H01M4/22—Forming of electrodes
- H01M4/23—Drying or preserving electrodes after forming
-
- 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
- H01M10/121—Valve regulated lead acid batteries [VRLA]
-
- 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
- H01M10/125—Cells or batteries with wound or folded electrodes
-
- 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
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Secondary Cells (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
This application discloses a kind of battery curing process, carry out in the following manner: first stage moisturizing: temperature controls at 60 ~ 80 DEG C, and humid control controlled at 0 ~ 4h in 90% ~ 100%RH, time；The second stage wet down stage: temperature controls at 60 ~ 80 DEG C；Humidity is gradually lowered to 0 ~ 20%RH by 90% ~ 100%RH in 4 ~ 8h；Phase III drying stage: temperature controls 60 ~ 80 DEG C, humid control 0 ~ 20%RH, is dried 6 ~ 12h.Battery curing process disclosed in the present application is a kind of new A GM valve control battery pole group's curing process, AGM separator material solidifies drying together with pole plate, pole group uses ladder wet down to substitute the curing mode of high humidity in the curing process, introduce ladder wet down technique in the traditional high moisture cure processes of routine, make AGM material be unlikely to long-time dissolving in the alkaline environment of high humidity and destroy, reduce inside battery and improve battery performance, and shorten battery solidification drying time.
Description
Technical field
The application relates to a kind of battery curing process, is specifically related to a kind of polar group's curing and dying process, belongs to Lead-acid Battery Technology field.
Background technology
Spirally wound lead acid battery is generally divided into two kinds, and a kind of is to apply cream with the pure stereotype of thick 0.7mm, and another kind is to apply cream with the lead foil of thick only 0.05mm.Both spirally wound lead acid batteries are all each every being wound into cylindric with superfine glass fibre partition board (AGM dividing plate), and battery case is also for cylinder.The feature of this spirally wound lead acid battery is can to may be used without very big pole plate stacking pressure by very high internal pressure (300-400KPa) simultaneously, because circle electricity groove can stand very big pressure and be unlikely to deformation.High open and close valve pressure can substantially reduce battery dehydration, and owing to electrode is very thin, internal resistance is very little, can exceed cadmium-nickel storage cell with great power discharge, performance.
But due to the restriction of spirally wound lead acid battery production technology, pole group can only be used to solidify, solidify traditionally and at least there is following two problem:
1st, due to superfine glass fibre partition board (AGM dividing plate) in high humidity environment hygroscopic, whole pole group is difficult to parch in this context, and general pole group is at least dried 48h and just can parch, and it is even longer that whole solidification reaches 72h arid cycle.
2, AGM dividing plate 24h in middle temperature high humidity environment together with pole plate, PbO in pole plate can dissolve entrance dividing plate, AGM dividing plate is made to be in alkaline environment, dissolving becomes colloid substance, Fig. 1 is solubility curve under the conditions of different PH for the AGM glass fibre, according to field data show, after PbO dissolves into dividing plate, PH can rise to more than 9.3, current conventional use of AGM dividing plate is sour environment design, acid resistance is good, but it is not alkaline-resisting, after PH9.3, AGM glass fibre dissolves in a large number and becomes colloid substance, efflorescence or become a floor height internal resistance barrier layer after drying, not only inhale acid and protect acid ability reduction, and increase the internal resistance of cell, reduce battery performance.
Content of the invention
The purpose of the application is to solve the problems referred to above, a kind of novel storage battery curing and dying process is provided, this process can be applicable to the pole group with AGM separator material and polar plate solidification is dried, AGM dividing plate is avoided to dissolve in alkaline environment and lost efficacy, it is greatly shortened the solidification drying time of Ji Qunhuoji group, applied range.
Battery curing process described herein is carried out in the following manner；
First stage moisturizing: temperature controls at 60 ~ 80 DEG C, and humid control controlled at 0 ~ 4h in 90% ~ 100%RH, time；
The second stage wet down stage: temperature controls at 60 ~ 80 DEG C；Humidity is gradually lowered to 0 ~ 20%RH by 90% ~ 100%RH in 4 ~ 8h；
Phase III drying stage: temperature controls 60 ~ 80 DEG C, humid control 0 ~ 20%RH, is dried 6 ~ 12h.
During described first stage moisturizing, the water content of the lead plaster participating in the pole plate of the described battery of solidification maintains 7%-9%.
At the end of the described second stage wet down stage, participate in the free lead in the accumulator plate of solidification and be less than or equal to 3%.
At the end of described phase III drying stage, the porosity of the positive plate participating in the described battery of solidification maintains 53%-57%, and the porosity of negative plate maintains 58%-62%, and the residual moisture of lead plaster is less than or equal to 1%.
At the end of described phase III drying stage, the porosity of the positive plate participating in the described battery of solidification maintains 55%, and the porosity of negative plate maintains 60%.
As another embodiment, battery curing process described herein is carried out in the following manner；
First stage in the auxiliary wet stage: temperature controls at 60 ~ 80 DEG C, and humid control controlled at 0 ~ 1h in 90% ~ 100%RH, time；
The second stage moisturizing stage: temperature controls at 60 ~ 80 DEG C, and humid control controlled at 0 ~ 6h in 80% ~ 90%RH, time；
Wet down stage phase III: temperature controls at 60 ~ 80 DEG C；Humidity is gradually lowered to 0 ~ 20%RH by 80% ~ 90%RH in 4 ~ 8h；
Fourth stage drying stage: temperature controls at 60 ~ 80 DEG C, humid control, at 0 ~ 20%RH, is dried 6 ~ 12h.
Compared with prior art, technical scheme provides the benefit that:
The battery curing process of the application eliminates the gluey layer that solidification process median septum forms high internal resistance in alkaline environment, not only reduces the internal resistance of cell, and can be greatly shortened and solidify drying time.
Brief description
Fig. 1 is solubility curve figure under the conditions of different PH for the AGM glass fibre.
Fig. 2 is the stereogram of winding battery pole group.
Fig. 3 is the profile of winding battery pole group.
In figure, the 1st, AGM dividing plate, the 2nd, positive plate, the 3rd, negative plate.
Detailed description of the invention
Below in conjunction with accompanying drawing, the technical scheme in the application is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the application, rather than whole embodiments.Based on the embodiment in the application, every other embodiment that those of ordinary skill in the art are obtained on the premise of not making creative work, broadly fall into the scope of the application protection.
In the present embodiment, spirally wound lead acid battery uses AGM valve control battery, and the separator material selected in the group of AGM valve control battery pole is ultra-fine fibre glass.
As shown in Figures 2 and 3, AGM valve control battery winding battery is identical with the conventional mode of production with the manufacture craft of flat board positive electrode for battery plate the 2nd, negative plate 3；What separator material was selected is AGM superfine glass fibre partition board, identical with conventional valve control battery separator material.
Traditional normal cure technique is that at 90% ~ 100%RH(RH Ji Qunhuoji group referred to relative humidity, Relative Humidity, lower with) keep 24h (h refers to hour, hour, lower with) under high humidity environment.Solidification drying is for dehydration of hardening, pole plate after filling on the one hand excess moisture, on the other hand lead plaster tissue is unstable, need to make its dehydration of hardening through curing and dying process, while completing the hardening dehydration of lead plaster, in lead plaster to be realized, oxidation, the lead plaster of free lead are combined with the corrosion of grid, the purpose of a series of physical reaction such as formation of the recrystallization of basic lead sulphate and porous electrode in lead plaster.Therefore, the solidification drying of pole plate is one important operation in lead-acid accumulator manufacture process, and its technical process is complicated physics, a chemical change process.Process conditions require extremely strict in this process, the change of any one technological parameter is required for verifying through substantial amounts of test, if process conditions are incorrect or process control not science is all by impact great for the quality generation on pole plate, for example cause pole plate crackle, shedding, send out the serious consequences such as crisp, directly affect capacity and the service life of battery.
By substantial amounts of verification experimental verification, in the special curing process that the application proposes, Ji Qunhuoji group local environment is gradually lowered to 20%RH from 90% ~ 100%RH in 4 ~ 8h, eliminate solidification process median septum in alkaline environment, form the gluey layer of high internal resistance, not only reduce the internal resistance of cell but also can be greatly shortened and solidify drying time.
Method one:
Special curing and dying process is carried out in the following manner:
First stage moisturizing: temperature controls at 60 ~ 80 DEG C, and humid control controlled at 0 ~ 4h in 90% ~ 100%RH, time；
The second stage wet down stage: temperature controls at 60 ~ 80 DEG C；Humidity is gradually lowered to 0 ~ 20%RH by 90% ~ 100%RH in 4 ~ 8h；
Phase III drying stage: temperature controls 60 ~ 80 DEG C, humid control 0 ~ 20%RH, is dried 6 ~ 12h.
Pole plate after filling with lead powder and cream, before carrying out solidification and being dried, about contain the free metal lead of about 15%, the metallic lead (Pb) of this part free state just can change into active material after being only oxidized to lead oxide (PbO), otherwise excessive lead can cause positive plate in formation process, due to Pb(density 11.34g/cm3) arrive PbSO4(density 6.32g/cm3) arrive PbO again2(density 9.37g/cm3) conversion process in Volume Changes very big, the stress producing due to volumetric expansion inside pole plate can cause plate buckling, active material to come off, simultaneously because the increase of active material volume, active material porosity can be made to reduce, the oxygen producing when causing positive plate to be melted into is not easy to be sent to polar board surface effusion, but produce pressure at pole plate inner accumulation, this oxygen with pressure overcomes the resistance of liquid hole inside pole plate, when polar board surface moves, there is souring, promote coming off of active material.In negative plate due to excessive free lead polymolecularity lie in electro-chemical reaction generate spongy lead in, make active material can not form homogeneous thing phase, cause active material configuration loose, intensity difference, easily come off.
In order to the lead of free state is oxidized to lead oxide (PbO), it is desirable to have the catalytic action of water, the metallic lead being otherwise dried is difficult to be oxidized to lead oxide (PbO).Conventional curing process considers this point just, controls humidity at 90% ~ 100%RH always, and Ji Qunhuoji group keeps 24h under high humidity environment.The immediate problem so causing is that the PbO in pole plate can dissolve entrance dividing plate, AGM dividing plate is made to be in alkaline environment, dissolving becomes colloid substance, but current conventional use of AGM dividing plate is sour environment design, and acid resistance is good, but it is not alkaline-resisting, particularly pH value reaches AGM glass fibre after 9.3 and dissolves in a large number and become colloid substance, efflorescence or become a floor height internal resistance barrier layer after being dried, and not only inhales acid and protects acid ability and reduce, and increase the internal resistance of cell, reduce battery performance.
In order to determine the optimal values scope of ladder wet down and hardening time, applicant reduces in the curing room of humidity at ladder, the pole plate taking middle part every 1 hour carries out constituent analysis and moisture chemical examination, discovery is under same solidification temperature, solidification was dried after 4 hours, the free lead in pole plate already less than or be equal to 6%；After 6 hours, free lead in pole plate already less than or be equal to 3%；After 8 hours, free lead in pole plate already less than or be equal to 2%.Generally, it is considered that the free lead in positive plate is less than or equal to 2%, the free lead in negative plate just has been able to meet basic technological requirement less than or equal to 4%.The positive plate harm that is because free lead in positive plate play higher than the requirement of negative plate is greater than negative plate, and positive plate is to affect battery initial capacity and the critical piece in life-span, needs strict control.
From the point of view of the result of experiment, the oxidation rate of free lead is not to be continued for keeping uniformly constant, and in starting 3 hours of wet down degree, free lead is rapidly decreased to 5%-7% from about 10%, oxidation rate slows down subsequently, is only reduced to 3% from about 5% through 6 hours.
It can thus be seen that all relative humidity need not be maintained at the high level of 90% ~ 100%RH completely in whole solidification is dried, in ladder wet down environment, just can meet basic technological requirement completely through 6 hours, control free lead below 3%.
In order to further determine that the impact of the oxidation on free lead for the moist gradient, applicant is respectively directed to temperature and humidity gradient further and is tested.Carry out constituent analysis and moisture chemical examination for the pole plate that every a pair temperature and humidity gradient takes 10 middle parts respectively, then average, for example under 60 DEG C of experimental conditions with 10%RH/h wet down gradient, the pole plate taking 10 middle parts carries out constituent analysis and moisture chemical examination, finds that its average free lead content is 2.5%.Under 60 DEG C and the 6%RH/h experimental conditions reducing humidity, the pole plate taking 10 middle parts carries out constituent analysis and moisture chemical examination, finds that its average free lead content is 2.9%.Detailed result of the test is as shown in the table
Be can be seen that by the result of the test of record in table, it is to be dried through the solidification of 6 hours equally, result under temperature 72 DEG C and 10%RH/h ladder wet down experimental condition has obvious lifting, the average free lead content of this experimental condition bottom crown be considerably less than other under the conditions of content.Identical test being repeated repeatedly to this applicant, result all shows that temperature 72 DEG C and 10% wet down humidity possess the lifting of obvious technique effect.
Accordingly, it can be deduced that, during second stage wet down, preferred temperature is 70 DEG C-80 DEG C, more preferably 72 DEG C；Preferred wet down gradient is 9%-12%RH/h, more preferably 10%RH/h.
After the wet down of second stage, the lead plaster on pole plate is by solid matter (PbO, 3 PbO 3PbO SO4•H2O, Pb etc.) and liquid phase substance (H2SO4、H2O etc.) the multiphase soft plastic material system that forms, will be dried by further solidification makes it dry out, after solidification is dry, the residual moisture in pole plate lead plaster typically requires less than or equal to 1%, finally condense into the uniform solid matter of micropore, make pole plate have good mechanical strength and electrical property.The dehydration process that solidification is dried pole plate is also called dehydration hardening.
Applicant is during experimental study, it was found that in the wet down phase process of second stage, if the water content of pole plate lead plaster is at 7%-9%, the thermal response that free lead spontaneous oxidation and oxidation produce is fastest.Pole plate lead plaster and electrode plate grid need to produce adhesion by corrosiveness in solidification dry run, thus ensure being normally carried out of pole plate electrochemical reaction.This corrosion process is actually the process of the metals such as the lead of grid surface, antimony autoxidation under solidification drying condition, its corrosion product is metal oxide, these metal oxides have the identical crystal formation of nature with some composition of lead plaster so that connection each other has certain adhesion.The water content keeping pole plate lead plaster is also best at 7%-9% to this corrosion process.In order to make the water content of pole plate lead plaster be maintained at 7%-9%, the application selects the temperature in moisturizing stage first stage to control at 60 ~ 80 DEG C；Humidity maintains 90% ~ 100%RH0 ~ 4h.This makes it possible to keep the whole second stage wet down stage makes the water content of pole plate lead plaster be maintained at 7%-9%.
During in addition, polar plate solidification is dried dehydration hardening, moisture outwards progressively spreads from pole plate lead plaster, after moisture leaves lead plaster multiphase system, defines countless apertures between the particle of lead plaster, and this is the basis forming active material porous electrode.On pole plate, the total measurement (volume) of active material mesopore and the percentage of the ratio of active material total measurement (volume) are referred to as the porosity of active material.The porosity of active material is bigger, and total amount in active material hole for the electrolyte is just many, and the amount that such active material participates in reaction is just many, thus the discharge capacity of battery is just big.But the impact that porosity is on accumulator capacity has duality, on the one hand the big electrolyte of porosity easily exchanges, and on the other hand the big active material of porosity just decreases relatively, and porosity is big, and capacity reduces on the contrary, it is therefore desirable to control rational porosity.Porosity is too small, accumulator capacity declines, the excessive life of storage battery that also can shorten of porosity due to exchange of electrolyte difficulty, so the water content of one side lead plaster to be controlled well, on the other hand, in the solidification dry run of pole plate, the rate-of-loss of coolant of solidification drying factor and pole plate will be controlled well.
Temperature and the selection of relative humidity that either the water content of lead plaster or the rate-of-loss of coolant of pole plate are all dried with polar plate solidification are closely related.As pointing out herein above, in solidification dry run, process conditions require extremely strict, the change of any one technological parameter is required for verifying through substantial amounts of test, if process conditions are incorrect or process control not science is all by impact great for the quality generation on pole plate, directly affect capacity and the service life of battery.
In the present embodiment, choose temperature and control at 60 ~ 80 DEG C；Humidity is gradually lowered to 0 ~ 20%RH by 90% ~ 100%RH in 4 ~ 8h, and the drying stage in the phase III makes temperature control at 60 ~ 80 DEG C, humid control 0 ~ 20%RH, and the porosity of positive plate maintains 53%-57% at the end of making the phase III, the porosity of negative plate maintains 58%-62%, and the residual moisture of lead plaster is less than or equal to 1%.The porosity of preferred positive plate maintains 55%, and the porosity of negative plate maintains 60%.
Method two:
Special curing and dying process is carried out in the following manner:
First stage is auxiliary wet: temperature 60 ~ 80 DEG C, humid control 90% ~ 100%RH
, time control 0 ~ 1h；
Second stage moisturizing: temperature 60 ~ 80 DEG C, humid control 80% ~ 90%RH
, time control 0 ~ 6h；
Wet down stage phase III: temperature controls 60 ~ 80 DEG C；Humidity is gradually lowered to 0 ~ 20%RH by 80% ~ 90%RH in 4 ~ 8h；
Fourth stage drying stage: temperature controls 60 ~ 80 DEG C, humid control 0 ~ 20%RH, is dried 6 ~ 12h.
The curing and dying process of the application uses ladder wet down to substitute high moisturecuring in cure stage, and AGM separator material can be avoided to dissolve in the alkaline environment of high humidity, improves battery performance.Also can be suitably used for other lead-acid accumulators together solidifying with AGM separator material, such as AGM flat plate cell simultaneously.
In sum, being the embodiment of the present application content, and obvious presently filed embodiment being not limited to that, it according to different application environment, can utilize the functional realiey corresponding demand of the application.
Claims (5)
1. a battery curing process, it is characterised in that carry out in the following manner:
Moisturizing stage first stage: temperature controls at 60 ~ 80 DEG C, and humid control controlled at 0 ~ 4h in 90% ~ 100%RH, time；
The second stage wet down stage: temperature controls at 60 ~ 80 DEG C；Humidity is gradually lowered to 0 ~ 20%RH by 90% ~ 100%RH in 4 ~ 8h；
Phase III drying stage: temperature controls 60 ~ 80 DEG C, humid control 0 ~ 20%RH, is dried 6 ~ 12h；
Wherein, during described first stage moisturizing, the water content of the lead plaster participating in the pole plate of the described battery of solidification maintains 7%-9%；
When the described second stage wet down stage terminates, participate in the free lead in the accumulator plate of solidification and be less than or equal to 3%；
At the end of described phase III drying stage, the porosity of the positive plate participating in the described battery of solidification maintains 53%-57%, and the porosity of negative plate maintains 58%-62%, and the residual moisture of lead plaster is less than or equal to 1%.
2. battery curing process according to claim 1, it is characterised in that during described first stage moisturizing, temperature controls at 70 DEG C-80 DEG C, and humid control is at 94%-100%RH.
3. battery curing process according to claim 1, it is characterised in that during described first stage moisturizing, temperature controls at 72 DEG C, and humid control is at 96%RH.
4. battery curing process according to claim 1, it is characterised in that at the end of described phase III drying stage, the porosity of the positive plate participating in the described battery of solidification maintains 55%, and the porosity of negative plate maintains 60%.
5. a battery curing process, it is characterised in that carry out in the following manner:
First stage in the auxiliary wet stage: temperature controls at 60 ~ 80 DEG C, and humid control controlled at 0 ~ 1h in 90% ~ 100%RH, time；
The second stage moisturizing stage: temperature controls at 60 ~ 80 DEG C, and humid control controlled at 0 ~ 6h in 80% ~ 90%RH, time；
Wet down stage phase III: temperature controls at 60 ~ 80 DEG C；Humidity is gradually lowered to 0 ~ 20%RH by 80% ~ 90%RH in 4 ~ 8h；
Fourth stage drying stage: temperature controls at 60 ~ 80 DEG C, humid control, at 0 ~ 20%RH, is dried 6 ~ 12h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510769144.8A CN105428606B (en) | 2015-11-12 | 2015-11-12 | A kind of battery curing process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510769144.8A CN105428606B (en) | 2015-11-12 | 2015-11-12 | A kind of battery curing process |
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| CN107342396B (en) * | 2016-05-03 | 2020-01-24 | 深圳市雄韬电源科技股份有限公司 | Rapid curing process of storage battery pole plate |
| CN106340618A (en) * | 2016-08-31 | 2017-01-18 | 骆驼集团襄阳蓄电池有限公司 | Drying process of lead-acid battery plate |
| US10254043B2 (en) * | 2016-09-22 | 2019-04-09 | Grst International Limited | Method of drying electrode assemblies |
| CN106848206B (en) * | 2017-04-20 | 2019-04-30 | 马鞍山纽泽科技服务有限公司 | Accumulator plate rapid curing drying process |
| CN107240675A (en) * | 2017-05-15 | 2017-10-10 | 天能电池(芜湖)有限公司 | A kind of improved two days curing process of battery grid |
| CN109301172B (en) * | 2018-01-09 | 2021-04-27 | 骆驼集团襄阳蓄电池有限公司 | Method for curing, heat-treating and drying anode wet green plate |
| CN109698324B (en) * | 2018-06-01 | 2021-08-31 | 骆驼集团蓄电池研究院有限公司 | Curing and drying process of green plate for lead-acid battery |
| CN109755481B (en) * | 2019-01-11 | 2020-12-11 | 天能电池集团股份有限公司 | Manufacturing process for improving low-temperature performance of lead storage battery |
| CN113036307B (en) * | 2021-03-29 | 2022-06-28 | 浙江昊杨新能源科技有限公司 | AGM partition plate processing method and device |
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| CN103400966A (en) * | 2013-07-09 | 2013-11-20 | 超威电源有限公司 | Curing process for pole plate of lead-acid storage battery |
| CN103606653A (en) * | 2013-10-21 | 2014-02-26 | 安徽省华森电源有限公司 | Automatic curing energy-saving technology of secondary lead regenerated accumulator plate |
| CN104600255A (en) * | 2014-12-30 | 2015-05-06 | 浙江天能动力能源有限公司 | Curing process of lead-acid storage battery plate |
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| CN103400966A (en) * | 2013-07-09 | 2013-11-20 | 超威电源有限公司 | Curing process for pole plate of lead-acid storage battery |
| CN103606653A (en) * | 2013-10-21 | 2014-02-26 | 安徽省华森电源有限公司 | Automatic curing energy-saving technology of secondary lead regenerated accumulator plate |
| CN104600255A (en) * | 2014-12-30 | 2015-05-06 | 浙江天能动力能源有限公司 | Curing process of lead-acid storage battery plate |
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Address after: 441000 No. 6, Shenzhen Avenue, Shenzhen Industrial Park, Xiangyang City, Hubei Province Patentee after: Hubei Hongben Energy Co.,Ltd. Address before: Camel Group Battery Research Institute Co., Ltd., No. 65 Hanjiang North Road, Xiangyang High tech Zone, Xiangfan City, Hubei Province, 441000 Patentee before: CAMEL GROUP STORAGE BATTERY ACADEMY CO. |