CN101442121A - Technique for solidifying lead acid battery polar plate - Google Patents
Technique for solidifying lead acid battery polar plate Download PDFInfo
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- CN101442121A CN101442121A CNA2008101633881A CN200810163388A CN101442121A CN 101442121 A CN101442121 A CN 101442121A CN A2008101633881 A CNA2008101633881 A CN A2008101633881A CN 200810163388 A CN200810163388 A CN 200810163388A CN 101442121 A CN101442121 A CN 101442121A
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- pole plate
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- accumulator plate
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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
Abstract
The invention relates to technology for curing a lead-acid accumulator plate, which is to place the accumulator plate into a pressure vessel, to pump in steam for temperature rise, to cure the accumulator plate for 2 to 4 hours at a temperature of between 90 and 100 DEG C, to continuously pump in the steam for temperature rise, to cure the accumulator plate for 2 to 4 hours at a temperature of between 101 and 120 DEG C and in the condition of exceeding the normal pressure, and to dry the accumulator plate after curing. The technology cures the lead-acid accumulator plate by a two-phase method and cures the accumulator plate in the condition of exceeding the normal pressure through high temperature and corresponding high pressure in a second phase, so that the technology for curing the lead-acid accumulator plate can greatly shorten the curing time and the drying time, and the produced accumulator plate has stable quality and a qualified rate of 100 percent.
Description
Technical field
The present invention relates to the curing process of polar plate of lead acid storage battery.
Background technology
The solidifying lead acid battery polar plate operation is the core procedure of battery production process, and the quality of this process quality directly has influence on battery quality itself.The curing process that adopts has two kinds usually at present:
First kind for normal temperature cure technology: in temperature is that 40～55 ℃, humidity are to solidify 24～48 hours under 90%～95% the condition, is 55～65 ℃ in temperature then, and humidity was less than under 30% the condition dry 24～48 hours.The plate active material that solidifies under this curing process condition forms 3BS, and the life-span of battery is shorter.The production cycle of pole plate while is very long, and the mass discrepancy between pole plate is very big, also causes the quality between battery that very big-difference is arranged.
Second kind for high temperature curing process: in temperature is 75～85 ℃, and humidity be greater than solidifying 24 hours under 95% the condition, is 55～65 ℃ in temperature then, and humidity was less than drying under 30% the condition 24～48 hours.The plate active material that solidifies under this curing process condition can form the mixture of 3BS and 4BS, 4BS (four basic lead sulphates; Molecular formula: 4PbO.PbSO
4.H
2O) content fluctuation is very big, and the mass discrepancy between pole plate is very big, and the production cycle is very long simultaneously.Cause the uniformity between battery can't be controlled.
According to the curing process characteristics of routine as can be seen, all there is following several big shortcoming in they: 1, the production cycle is long; 2, quality fluctuation is big, the lack of homogeneity of pole plate; 3, qualification rate is low.
Summary of the invention
Technical problem to be solved by this invention provides a kind ofly can shorten the production cycle, stay-in-grade technique for solidifying lead acid battery polar plate.For this reason, the present invention is by the following technical solutions: it places pole plate in the pressure vessel, feeding steam heats up, between 90-100 ℃, pole plate is cured, 2-4 hour curing time, continues to feed steam then and heat up, between 101 ℃-120 ℃, surpassing under the environment of normal pressure, pole plate is cured 2-4 hour curing time; After curing, pole plate is carried out drying.Owing to adopt technical scheme of the present invention, the present invention is cured by 2 sections methods, and in the time of the 2nd section by high temperature and pairing high pressure, pole plate is being surpassed under the environment of normal pressure, be cured, can greatly shorten curing time, and can also shorten drying time, the pole plate steady quality of being produced, qualification rate can reach 100%.
Embodiment
Among the following embodiment of the present invention, the 4BS content measurement of lead plaster adopts the XRD tester, uses semiquantitative method of testing.
Embodiment 1:
With 24 pole plate hangers on the pole plate frame, put into the normal pressure curing oven, be cured greater than 95% time at 80 ℃, humidity, when reaching design temperature, temperature picks up counting, reach 2 hours when solidified, take out 4 pole plates 4 hours, 6 hours, 8 hours, 12 hours, 24 hours the time respectively, after the drying, detect the content of 4BS in the pole plate lead plaster, the mean value of the 4BS content of the pole plate of each sample time is recorded in the form 1.
Form 1:
Embodiment 2:
With 4 pole plate hangers on the pole plate frame, put into withstand voltage airtight curing room, open steam valve, in curing room, feed steam and be heated to 90 ℃, when reaching design temperature, temperature picks up counting, the control temperature is at 90-92 ℃, be 2h curing time, continues to feed steam, is warming up to 101 ℃, when reaching design temperature, temperature picks up counting, the control temperature is at 101-104 ℃, and be 2h curing time, solidifies the dry pole plate in back, detect the content of 4BS in the pole plate lead plaster, the mean value of the 4BS content of pole plate is recorded in the form 2.
Embodiment 3-13, operating procedure is the same, is the temperature and time difference, and the mean value of the 4BS content of the parameter of each embodiment and obtained pole plate is recorded in the form 1.Form 2:
As can be seen from the above table, adopt technical scheme of the present invention, the content of 4BS is all above 80% in the lead plaster, and quality is than the pole plate height that adopts conventional method to make among the embodiment 1, and particularly outstanding is to be significantly less than conventional method curing time.
Implement 14
With 4 pole plate hangers on the pole plate frame, put into withstand voltage airtight curing room, open steam valve, in curing room, feed steam and be heated to 90 ℃, when reaching design temperature, temperature picks up counting, the control temperature is at 90-92 ℃, be 2h curing time, continues to feed steam, is warming up to 101 ℃, when reaching design temperature, temperature picks up counting, the control temperature is at 101-104 ℃, and be 2h curing time, solidifies the dry pole plate in back, detect the 4BS particle diameter in its lead plaster, the mean value of particle diameter is recorded in the form 3.
Embodiment 14-23, operating procedure is the same, is the temperature and time difference, and the 4BS average grain diameter in the parameter of each embodiment and the lead plaster of obtained pole plate is recorded in the form 3.
Form 3:
4BS average grain diameter in the lead plaster of the pole plate that the curing of embodiment 1 was made in 12 hours is measured as: 36um.4BS average grain diameter in the lead plaster of the pole plate that the curing of embodiment 1 was made in 24 hours is measured as: 51um
From above embodiment as can be known, 4BS is under hot conditions, and along with the prolongation of curing time, the particle diameter of 4BS can be grown up gradually, and the particle diameter of 4BS is big more, after this pole plate is assembled into battery, changes into the very difficulty that just becomes, and is unfavorable for the production of battery later process.But, solidifying total time in 8 hours, the 4BS average grain diameter that makes 4BS average grain diameter in the lead plaster of pole plate and embodiment 1 is similar, can satisfy the production of battery later process.
In the present embodiment, the test of 4BS particle diameter is adopted ESEM (SEM) to observe and is measured.
Embodiment 24
With 4 pole plate hangers on the pole plate frame, put into withstand voltage airtight curing room, open steam valve, in curing room, feed steam and be heated to 90 ℃, when reaching design temperature, temperature picks up counting, the control temperature is at 90-92 ℃, be 2h curing time, continues to feed steam, is warming up to 101 ℃, when reaching design temperature, temperature picks up counting, the control temperature is at 101-104 ℃, and be 2h curing time, and solidifying the back is 55～65 ℃ in temperature, humidity is less than dry under 30% the condition, and test is after dry 6 hours respectively, after 12 hours, free lead content after 18 hours (Pb%) and water content (H
2O%), outcome record is in form 4.
Embodiment 25
With 4 pole plate hangers on the pole plate frame, put into withstand voltage airtight curing room, open steam valve, in curing room, feed steam and be heated to 90 ℃, when reaching design temperature, temperature picks up counting, the control temperature is at 98-100 ℃, be 3h curing time, continues to feed steam, is warming up to 116 ℃, when reaching design temperature, temperature picks up counting, the control temperature is at 116-120 ℃, and be 3h curing time, and solidifying the back is 55～65 ℃ in temperature, humidity is less than dry under 30% the condition, and test is after dry 6 hours respectively, after 12 hours, free lead content after 18 hours (Pb%) and water content (H
2O%), outcome record is in form 4.
Embodiment 26
With 4 pole plate hangers on the pole plate frame, put into withstand voltage airtight curing room, open steam valve, in curing room, feed steam and be heated to 90 ℃, when reaching design temperature, temperature picks up counting, the control temperature is at 94-96 ℃, be 4h curing time, continues to feed steam, is warming up to 116 ℃, when reaching design temperature, temperature picks up counting, the control temperature is at 108-112 ℃, and be 4h curing time, and solidifying the back is 55～65 ℃ in temperature, humidity is less than dry under 30% the condition, and test is after dry 6 hours respectively, after 12 hours, free lead content after 18 hours (Pb%) and water content (H
2O%), outcome record is in form 4.
The pole plate that the curing of embodiment 1 was made in 24 hours adopts the said method drying, test after dry 6 hours respectively, free lead content (Pb%) and water content (H after 12 hours, after 18 hours, after 24 hours
2O%), outcome record is in form 4.Form 4:
From last table data as can be seen, drying is in the time of 18 hours under 65 degree conditions for pole plate, and free lead is all less than 3%, and water content is all less than 0.5%.Specification requirement (Pb%＜3% that meets pole plate free lead and water content fully; H
2O%＜0.5%).Obviously, adopt curing of the present invention to solidify pole plate after, also can shorten greatly its drying time.
In sum, curing process of the present invention has the following advantages:
1. the production cycle is foreshortened in 1 day by about 3 days of conventional curing and dying process, and production efficiency significantly Degree promotes.
2. this curing process is realized polar plate solidification at high temperature, condition of high voltage, and the curing process condition of every pole plate does not have difference, and the plate active material conversion is stable, even.The pole plate differences is little, and quality fluctuation is little.
3. press the pole plate that process conditions of the present invention are produced, 4BS content height, every pole plate 4BS content is all greater than 80%.
4. adopt the pole plate of explained hereafter of the present invention, the battery quality of assembling is stable, and good uniformity can reach amplitude peak useful life and promote.
Remarks: 4BS Chinese name: four basic lead sulphates; Molecular formula: 4PbO.PbSO
4.H
2O.
Claims (1)
1. technique for solidifying lead acid battery polar plate, it is characterized in that it places pole plate in the pressure vessel, feeding steam heats up, between 90-100 ℃, pole plate is cured, 2-4 hour curing time, continues to feed steam then and heat up, between 101 ℃-120 ℃, surpassing under the environment of normal pressure, pole plate is cured 2-4 hour curing time; After curing, pole plate is carried out drying.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101633881A CN101442121B (en) | 2008-12-18 | 2008-12-18 | Technique for solidifying lead acid battery polar plate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101633881A CN101442121B (en) | 2008-12-18 | 2008-12-18 | Technique for solidifying lead acid battery polar plate |
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| Publication Number | Publication Date |
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| CN101442121A true CN101442121A (en) | 2009-05-27 |
| CN101442121B CN101442121B (en) | 2011-10-12 |
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|---|---|---|---|
| CN2008101633881A Active CN101442121B (en) | 2008-12-18 | 2008-12-18 | Technique for solidifying lead acid battery polar plate |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102683714A (en) * | 2012-05-04 | 2012-09-19 | 上海锦众信息科技有限公司 | Preparation method for positive plate of lead-acid storage battery |
| CN103137947A (en) * | 2013-03-05 | 2013-06-05 | 江苏苏中电池科技发展有限公司 | Curing process of polar plate used for lead-acid battery pack |
| CN104051711A (en) * | 2014-05-29 | 2014-09-17 | 天能电池(芜湖)有限公司 | Positive plate high temperature curing process |
| CN104540605A (en) * | 2012-06-08 | 2015-04-22 | 丰田自动车株式会社 | Heat treatment method, heat-treating furnace, and heat treatment system |
| CN108088698A (en) * | 2017-11-03 | 2018-05-29 | 超威电源有限公司 | A kind of pole plate sampling and analyzing method of cure stage |
| CN109585788A (en) * | 2018-11-20 | 2019-04-05 | 天能电池(芜湖)有限公司 | 90 DEG C of high-energy type battery grid curing process |
-
2008
- 2008-12-18 CN CN2008101633881A patent/CN101442121B/en active Active
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102683714A (en) * | 2012-05-04 | 2012-09-19 | 上海锦众信息科技有限公司 | Preparation method for positive plate of lead-acid storage battery |
| CN102683714B (en) * | 2012-05-04 | 2014-12-31 | 上海锦众信息科技有限公司 | Preparation method for positive plate of lead-acid storage battery |
| CN104540605A (en) * | 2012-06-08 | 2015-04-22 | 丰田自动车株式会社 | Heat treatment method, heat-treating furnace, and heat treatment system |
| CN104540605B (en) * | 2012-06-08 | 2016-09-07 | 丰田自动车株式会社 | Heat treatment method, heat-treatment furnace and heat treatment system |
| US9498807B2 (en) | 2012-06-08 | 2016-11-22 | Toyota Jidosha Kabushiki Kaisha | Heat treatment method, heat-treating furnace, and heat treatment system |
| CN103137947A (en) * | 2013-03-05 | 2013-06-05 | 江苏苏中电池科技发展有限公司 | Curing process of polar plate used for lead-acid battery pack |
| CN104051711A (en) * | 2014-05-29 | 2014-09-17 | 天能电池(芜湖)有限公司 | Positive plate high temperature curing process |
| CN104051711B (en) * | 2014-05-29 | 2016-06-15 | 天能电池(芜湖)有限公司 | A kind of positive plate high temperature curing process |
| CN108088698A (en) * | 2017-11-03 | 2018-05-29 | 超威电源有限公司 | A kind of pole plate sampling and analyzing method of cure stage |
| CN109585788A (en) * | 2018-11-20 | 2019-04-05 | 天能电池(芜湖)有限公司 | 90 DEG C of high-energy type battery grid curing process |
| CN109585788B (en) * | 2018-11-20 | 2021-12-10 | 天能电池(芜湖)有限公司 | Curing process for 90 ℃ high-energy battery grid |
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| Publication number | Publication date |
|---|---|
| CN101442121B (en) | 2011-10-12 |
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