CN102856535A - High-temperature high-humidity electrode plate curing process - Google Patents
High-temperature high-humidity electrode plate curing process Download PDFInfo
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- CN102856535A CN102856535A CN2011101839119A CN201110183911A CN102856535A CN 102856535 A CN102856535 A CN 102856535A CN 2011101839119 A CN2011101839119 A CN 2011101839119A CN 201110183911 A CN201110183911 A CN 201110183911A CN 102856535 A CN102856535 A CN 102856535A
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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 inventive high-temperature high-humidity electrode plate curing process includes (1) sending green electrode plates into a curing chamber, and performing surface drying at 150-180 DEG C and relative humidity of 20-30%, to reach moisture content of 7.5-8.5 wt% in dried green electrode plate; and (2) regulating curing temperature to 90-95 DEG C and relative humidity of 100% in the curing chamber, and curing the green electrode plate for 24 h. The invention has the advantages of short curing time, firm bonding between lead paste and plate grid, no deformation and cracking, high production efficiency, high electrode plate quality, and substantially improved battery comprehensive performances.
Description
Technical field
The present invention relates to the lead acid accumulator field, especially valve controlled sealed lead-acid accumulator plate curing process.
Background technology
Grid type plate dehydration under certain process conditions, plastic lead plaster typing condenses into the solid with good mechanical properties and chemical characteristic, and this process is called curing.
The curing of battery pole plates is to make very important technical process in the battery, and grid only has by curing process after filling lead plaster, the lead plaster particle is connect mutually form continuously solid skeleton, and be attached on the grid tightly.The quality of polar plate solidification directly affects the electric property of storage battery.Curing process is extremely important on the impact of pole plate quality, is the important step in the battery production, and it is related to amount of capacity and the life-span length of lead acid accumulator.
Curing process generally is divided into intermediate temperature setting and high temperature pressure solidifies.Intermediate temperature setting exists the production time long, lead plaster adhesion, the weakness lower with the bond strength of grid, and it is insufficient that the 3BS in the lead plaster (tribasic lead sulfate) is converted into 4BS (four basic lead sulphates), and battery cycle life is short; High temperature pressure solidifies needs pressure vessel, pressurized equipment, and investment is large, cost is high, and oxygen supply is inadequate in solidification process, also has the shortcomings such as pole plate strain cracking.
Summary of the invention
The technical problem to be solved in the present invention is: provide a kind of curing time short, lead plaster is combined with grid firmly, without the high temperature and heavy wet solidification technique of strain cracking, this technique not only can be enhanced productivity, and can improve the pole plate quality, thereby fundamentally improving the battery combination property.
Technical scheme of the present invention is:
1, green plate is sent into curing room, the control temperature is 150～180 ℃, and relative humidity is 20～30%, carries out dry tack free, and making the dried water content of green plate is 7.5～8.5%(percentage by weight);
2, adjust the interior temperature and humidity of curing room, make curing temperature remain 90～95 ℃, relative humidity remains 100%, and green plate is cured, and be 24h curing time.
Phase I is the dry tack free stage: first green plate is carried out dry tack free, can prevent mutually adhesion between plate and the plate.After the dry tack free, the green plate water content is 7.5～8.5%, is conducive to the carrying out of next step curing.Experiment shows that when water content 7.5～8.5%, the oxidation rate of lead plaster is the highest.If water content is lower than 7%, plumbous oxidation is carried out very slowly, and the very fast exsiccation of pole plate, and solidification process is finished very badly.If water content is greater than 8.5%, same oxidation rate is very low, needs curing time longer.
Second stage is the high temperature and heavy wet solidification stage: curing temperature and humidity height can increase the nucleation rate of 4BS, shorten curing time, are conducive to 3BS and change into 4BS, make pole plate have good capacity and cycle life; Hot and humid condition, can accelerate the oxidation of metallic lead, make the grid surface form the oxidation lead layer, lead oxide after the oxidation is deposited on the grid top layer, grow into lead plaster, make and set up one between lead plaster and the grid surface and very firmly connect, guarantee the lead plaster close attachment on grid, make the pole plate after the curing have good mechanical strength.
In sum, adopt curing process provided by the present invention, not only can shorten the production cycle, boost productivity, and can improve the pole plate quality after solidifying, thereby fundamentally improving the battery combination property.
Compare with intermediate temperature setting technique, high temperature and heavy wet solidification technique can reduce about 23 hours of curing time, can significantly shorten the production cycle of battery, improves speed of production.
Embodiment
Embodiment one:
The below is cured as example with the 50Ah green plate, further specifies specific implementation method of the present invention.
Equipment: adopt the curing room with A.T.C and humidity.
1, will be coated with 50Ah green plate behind the cream hangs over and dries on the frame every green plate spacing 1mm.The frame that dries that then will overwork green plate advances curing room.The temperature of curing room is controlled at 180 ℃, and relative humidity is 20～30%, carries out dry tack free, and be about 6min drying time, and making the dried water content of green plate is the 8%(percentage by weight); 2, the curing room temperature is controlled at 90～95 ℃, relative humidity remains 100%, and green plate is cured, and be 24h curing time.
After finishing above curing processing, after tested, the 4BS content of pole plate is 86%.
Be assembled into the 2V500Ah battery, change into, charge with the pole plate after the above curing.Detect the over-charging of battery electric life according to industry standard " YD/T 799-2002 communication valve controlled sealed lead-acid accumulator ", its result is: circulating battery 300 days, amounted to float life 10 years.
Embodiment two: followingly be cured as example with the 25Ah green plate, further specify specific implementation method of the present invention.
Equipment: adopt the curing room with A.T.C and humidity.
1, will be coated with 25Ah green plate behind the cream hangs over and dries on the frame every green plate spacing 1mm.The frame that dries that then will overwork green plate advances curing room.The temperature of curing room is controlled at 150 ℃, and relative humidity is 20～30%, carries out dry tack free, and be about 4min drying time, and making the dried water content of green plate is the 8%(percentage by weight); 2, the curing room temperature is controlled at 90～95 ℃, relative humidity remains 100%, and green plate is cured, and be 24h curing time.
After finishing above curing processing, after tested, the 4BS content of pole plate is 88%.
Be assembled into the 2V500Ah battery, change into, charge with the pole plate after the above curing.Detect the over-charging of battery electric life according to industry standard " YD/T 799-2002 communication valve controlled sealed lead-acid accumulator ", its result is: circulating battery 330 days, amounted to float life 11 years.
Claims (1)
1. hot and humid polar plate solidification technique is characterized in that:
(1) green plate is sent into curing room, the control temperature is 150～180 ℃, and relative humidity is 20～30%, carries out dry tack free, and making the dried water content of green plate is 7.5～8.5%(percentage by weight);
(2) adjust the interior temperature and humidity of curing room, make curing temperature remain 90～95 ℃, relative humidity remains 100%, and green plate is cured, and be 24h curing time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101839119A CN102856535A (en) | 2011-07-02 | 2011-07-02 | High-temperature high-humidity electrode plate curing process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101839119A CN102856535A (en) | 2011-07-02 | 2011-07-02 | High-temperature high-humidity electrode plate curing process |
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| Publication Number | Publication Date |
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| CN102856535A true CN102856535A (en) | 2013-01-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011101839119A Pending CN102856535A (en) | 2011-07-02 | 2011-07-02 | High-temperature high-humidity electrode plate curing process |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103715397A (en) * | 2013-12-07 | 2014-04-09 | 河南超威电源有限公司 | Plate grid surface dip bonding liquid and polar plate curing process method |
| CN107302118A (en) * | 2016-04-15 | 2017-10-27 | 北京化工大学 | A kind of lead oxide that reclaims is as the high-performance lead-acid accumulator of active material |
| CN112687849A (en) * | 2020-12-28 | 2021-04-20 | 重庆万里新能源股份有限公司 | Efficient curing process for polar plate |
| CN113823769A (en) * | 2021-07-26 | 2021-12-21 | 安徽理士电源技术有限公司 | Method for curing lead-acid storage battery pole plate |
| CN114256515A (en) * | 2021-11-02 | 2022-03-29 | 浙江长兴绿色电池科技有限公司 | Research method for dynamic charge acceptance of exhaust type start-stop lead-acid storage battery |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101072729A (en) * | 2004-09-23 | 2007-11-14 | 麦克斯科技公司 | Paste curing additive |
| CN101289007A (en) * | 2008-05-06 | 2008-10-22 | 浙江超威电源有限公司 | Manufacturing technique of melt-blown nonwoven fiber reinforcement pole plate |
| CN101877402A (en) * | 2009-09-18 | 2010-11-03 | 华南师范大学 | Negative plate of storage battery and manufacturing method thereof |
-
2011
- 2011-07-02 CN CN2011101839119A patent/CN102856535A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101072729A (en) * | 2004-09-23 | 2007-11-14 | 麦克斯科技公司 | Paste curing additive |
| CN101289007A (en) * | 2008-05-06 | 2008-10-22 | 浙江超威电源有限公司 | Manufacturing technique of melt-blown nonwoven fiber reinforcement pole plate |
| CN101877402A (en) * | 2009-09-18 | 2010-11-03 | 华南师范大学 | Negative plate of storage battery and manufacturing method thereof |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103715397A (en) * | 2013-12-07 | 2014-04-09 | 河南超威电源有限公司 | Plate grid surface dip bonding liquid and polar plate curing process method |
| CN107302118A (en) * | 2016-04-15 | 2017-10-27 | 北京化工大学 | A kind of lead oxide that reclaims is as the high-performance lead-acid accumulator of active material |
| CN107302118B (en) * | 2016-04-15 | 2020-03-20 | 北京化工大学 | High-performance lead-acid storage battery with recovered lead oxide as active substance |
| CN112687849A (en) * | 2020-12-28 | 2021-04-20 | 重庆万里新能源股份有限公司 | Efficient curing process for polar plate |
| CN113823769A (en) * | 2021-07-26 | 2021-12-21 | 安徽理士电源技术有限公司 | Method for curing lead-acid storage battery pole plate |
| CN114256515A (en) * | 2021-11-02 | 2022-03-29 | 浙江长兴绿色电池科技有限公司 | Research method for dynamic charge acceptance of exhaust type start-stop lead-acid storage battery |
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Application publication date: 20130102 |