CN107342396A - The fast-curing process of accumulator plate - Google Patents

The fast-curing process of accumulator plate Download PDF

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Publication number
CN107342396A
CN107342396A CN201610284159.XA CN201610284159A CN107342396A CN 107342396 A CN107342396 A CN 107342396A CN 201610284159 A CN201610284159 A CN 201610284159A CN 107342396 A CN107342396 A CN 107342396A
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China
Prior art keywords
humidity
temperature
time
stage
solidified
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CN201610284159.XA
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CN107342396B (en
Inventor
廖兆军
胡金丰
张华农
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Hubei Xiongtao Power Technology Co Ltd
Shenzhen Center Power Tech Co Ltd
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Hubei Xiongtao Power Technology Co Ltd
Shenzhen Center Power Tech Co Ltd
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    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00Electrodes
    • H01M4/02Electrodes composed of, or comprising, active material
    • H01M4/14Electrodes for lead-acid accumulators
    • H01M4/16Processes of manufacture
    • H01M4/20Processes of manufacture of pasted electrodes
    • H01M4/21Drying of pasted electrodes
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

Abstract

The present invention discloses a kind of fast-curing process of accumulator plate, comprises the following steps:1 stage:Temperature 60 C~65 DEG C, humidity 95%~100%, time 0.5h~1.0h;2 stages:Temperature 60 C~65 DEG C, humidity 90%~95%, time 0.5h~1.0h;3 stages:Temperature 70 C~75 DEG C, humidity 85%~90%, time 0.5h~1.0h;4 stages:80 DEG C~85 DEG C of temperature, humidity 80%~85%, time 1.0h~2.5h;5 stages:Temperature 70 C~75 DEG C, humidity 85%~90%, time 0.5h~1.0h;Drying stage:80 DEG C~85 DEG C of temperature, humidity 0%, time 1.0h~4.0h.The production efficiency of polar plate solidification drying is greatly improved in this programme, realizes the continuous production of polar plate of lead acid storage battery and assembling, and the lead-acid accumulator manufactured has good capacity and cycle life.

Description

The fast-curing process of accumulator plate
Technical field
The present invention relates to battery technology field, more particularly to a kind of fast-curing process of battery.
Background technology
With the aggravation of world energy sources crisis and the rise of low-carbon economy, huge transition and upgrade is also occurring for the production model of Chinese battery industry.New production technology will gradually substitute old production technology.Engender that the complete of high-tech content draws in the net production line, continuous casting and rolling production line, automatic material induction system at present, and advanced high automation, complete set, the production model of systematization continue to bring out.
In the manufacturing process of lead-acid accumulator, the solidification of green plate is one of critical process, while is also one of production cycle most long process, and the curing process time common at present is generally between 60h~90h;This serious restriction height automation, complete set, production model of systematization.
To meet production model transition and upgrade needs, it is necessary to shorten the green plate curing and dying process time to improve the production efficiency of green plate, and then shorten the production cycle of battery, while ensure green plate capacity and cycle performance.
The content of the invention
To solve the problems, such as that hardening time is long, can not meet high automation, complete set, systematization production model existing for above-mentioned existing lead-acid accumulator green plate solidification, the embodiments of the invention provide a kind of fast-curing process of battery.
In order to reach foregoing invention purpose, the embodiment of the present invention employs following technical scheme:
A kind of fast-curing process of accumulator plate, including at least following procedure step:
1) solidified for the 1st stage:Temperature 60 C~65 DEG C, humidity 95%~100%, time 0.5h~1.0h;
2) solidified for the 2nd stage:Temperature 60 C~65 DEG C, humidity 90%~95%, time 0.5h~1.0h;
3) solidified for the 3rd stage:Temperature 70 C~75 DEG C, humidity 85%~90%, time 0.5h~1.0h;
4) solidified for the 4th stage:80 DEG C~85 DEG C of temperature, humidity 80%~85%, time 1.0h~2.5h;
5) solidified for the 5th stage:Temperature 70 C~75 DEG C, humidity 85%~90%, time 0.5h~1.0h;
6) dried for the 1st stage:80 DEG C~85 DEG C of temperature, humidity 0%, time 1.0h~4.0h.
The fast-curing process for the lead-acid accumulator that the above embodiment of the present invention provides, the solidification drying of pole plate can be completed in 6~10h, greatly improve the dry production efficiency of green plate solidification, online production of the lead-acid accumulator from pole plate to assembling can be realized, and when solidifying dried pole plate and being manufactured into lead-acid accumulator, lead-acid accumulator has good capacity and cycle life;The VRLA batteries that the pole plate handled by the curing and dying process manufactures, the electric discharge of 20 hour rates can reach 21~22 hours, initial 1C capacity is in more than 40min, 100 attenuation degrees of 1C discharge cycles and suitable with the VRLA batteries that system curing process pole plate makes in plate active material weight etc..
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to embodiments, the present invention will be described in further detail.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
The embodiment of the present invention provides a kind of fast-curing process of accumulator plate, including at least following procedure step:
1) solidified for the 1st stage:Temperature 60 C~65 DEG C, humidity 95%~100%, time 0.5h~1.0h;
2) solidified for the 2nd stage:Temperature 60 C~65 DEG C, humidity 90%~95%, time 0.5h~1.0h;
3) solidified for the 3rd stage:Temperature 70 C~75 DEG C, humidity 85%~90%, time 0.5h~1.0h;
4) solidified for the 4th stage:80 DEG C~85 DEG C of temperature, humidity 80%~85%, time 1.0h~2.5h;
5) solidified for the 5th stage:Temperature 70 C~75 DEG C, humidity 85%~90%, time 0.5h~1.0h;
6) dried for the 1st stage:80 DEG C~85 DEG C of temperature, humidity 0%, time 1.0h~4.0h.
Wherein, in a preferred embodiment, the grid for the pole plate that the curing process uses for punching or draws in the net grid;By punching or draw in the net the VRLA batteries that the pole plate that handle in the curing and dying process of pole plate of grid coating manufactures, 20 hour rates, which discharge, can reach 21~22 hours, and initial 1C capacity is in more than 40min.
In order to more optimize the thickness of grid, grid material is saved, it is further preferred that punching or to draw in the net grid. g., lead tape thickness be 0.7mm~1.0mm.
It is further preferred that thickness≤2.5mm of punching positive plate, thickness≤1.8mm of punching negative plate.
In a preferred embodiment, capable solidification is put into using monolithic or biplate pole in during solidification, avoids multi-disc pole plate from being superimposed and to cause solidification not occur free lead content thoroughly too high or dry purpose even failure that is not thorough and causing curing process not reach the present embodiment.
In a preferred embodiment, the positive lead plaster of the pole plate of this curing process is made up of the following material of percentage by weight:Lead powder 30%~80%;Dilute sulfuric acid 10%~20%;Pure water 8%~20%;Chopped fiber 0.8%~1.2%;4BS 0.5%~20%.
It is further preferred that the diameter of 4BS crystal grain is about 2~20 microns, the smaller easier chemical conversion of 4BS diameters, and be advantageous to the initial capacity of battery.
It is further preferred that solidification after positive plate in, free lead content be 0.2%~3%, moisture be 0.1%~0.5%;Negative plate free lead content is 0.2%~5%, and moisture is 0.1%~0.5%.After positive plate solidification in the parameter area, while ensureing battery capacity, battery cycle life can be effectively improved.
The fast-curing process for the lead-acid accumulator that the above embodiment of the present invention provides, the solidification drying of pole plate can be completed in 6~10h, greatly improve the dry production efficiency of green plate solidification, online production of the lead-acid accumulator from pole plate to assembling can be realized, and when solidifying dried pole plate and being manufactured into lead-acid accumulator, lead-acid accumulator has good capacity and cycle life;The VRLA batteries that the pole plate handled by the curing and dying process manufactures, the electric discharge of 20 hour rates can reach 21~22 hours, initial 1C capacity is in more than 40min, 100 attenuation degrees of 1C discharge cycles and plate active material weight etc. with system curing process pole plate make VRLA batteries it is suitable, therefore, under conditions of lead-acid accumulator production method, acid adding process, charge technology etc. are consistent, the lead-acid accumulator that the pole plate of the green plate curing process production provided by the present embodiment makes is suitable with conventional curing process polar plate battery.
In order to preferably embody the fast-curing process of lead-acid accumulator provided in an embodiment of the present invention, further illustrated below by multiple embodiments.
Embodiment 1
(1) it is made up of as follows percentage by weight according to the material of positive lead plaster:Lead powder 30%;Dilute sulfuric acid 18%;Pure water 15%;Chopped fiber 1.2%;4BS 0.5% is coated on the punching grid that. g., lead tape thickness is 0.8mm;Paint the punching pole plate that thickness is 2.5mm;
(2) the punching pole plate of above-mentioned acquisition is performed in curing room and by following steps so that monolithic form is evenly laid out:
1) the 1st stage, temperature 60 C, humidity 98%, time 1.0h are solidified;
2) the 2nd stage, 65 DEG C of temperature, humidity 90%, time 0.5h are solidified;
3) the 3rd stage, 72 DEG C of temperature, humidity 90%, time 1.0h are solidified;
4) the 4th stage, 83 DEG C of temperature, humidity 85%, time 2.5h are solidified;
5) the 5th stage, temperature 70 C, humidity 85%, time 0.5h are solidified;
6) the 1st stage, 80 DEG C of temperature, humidity 0%, time 2h are dried;
(3) and then the punching pole plate that (2) obtain is detected, the positive plate free lead content after solidification is 3%, moisture 0.1%;Negative plate free lead content is 0.2%, when moisture is 0.4%, cools and solidifies room;
(4) thickness that the qualified positive plate and common process obtained (2) makes is that 1.8mm negative plate is fabricated to 12V7AH VRLA batteries according to normal process, the hour rate of battery 20 electric discharge can reach 22.5h, and initial 1C capacity is 45min.
Embodiment 2
(1) it is made up of as follows percentage by weight according to the material of positive lead plaster:Lead powder 80%;Dilute sulfuric acid 20%;Pure water 8%;Chopped fiber 0.8%;4BS 20% is coated on the punching grid that. g., lead tape thickness is 1.0mm;Paint the punching pole plate that thickness is 2.5mm;
(2) the punching pole plate of above-mentioned acquisition is performed in curing room and by following steps so that monolithic form is evenly laid out:
1) the 1st stage, 65 DEG C of temperature, humidity 100%, time 0.5h are solidified;
2) the 2nd stage, 65 DEG C of temperature, humidity 95%, time 1.0h are solidified;
3) the 3rd stage, 75 DEG C of temperature, humidity 85%, time 1.0h are solidified;
4) the 4th stage, 85 DEG C of temperature, humidity 85%, time 2.5h are solidified;
5) the 5th stage, 75 DEG C of temperature, humidity 85%, time 0.5h are solidified;
6) the 1st stage, 80 DEG C of temperature, humidity 0%, time 1.0h are dried;
(3) and then the punching pole plate that (2) obtain is detected, the positive plate free lead content after solidification is 0.2%, moisture 0.5%;Negative plate free lead content is 2%, when moisture is 0.5%, cools and solidifies room;
(4) thickness that the qualified positive plate and common process obtained (2) makes is that 1.8mm negative plate is fabricated to 12V7AH VRLA batteries according to normal process, the hour rate of battery 20 electric discharge can reach 21.5h, and initial 1C capacity is 42min.
Embodiment 3
(1) it is made up of as follows percentage by weight according to the material of positive lead plaster:Lead powder 80%;Dilute sulfuric acid 10%;Pure water 20%;Chopped fiber 0.8%;4BS 20% is coated on the punching grid that. g., lead tape thickness is 0.7mm;Paint the punching pole plate that thickness is 2.5mm;
(2) the punching pole plate of above-mentioned acquisition is performed in curing room and by following steps so that monolithic form is evenly laid out:
1) the 1st stage, 65 DEG C of temperature, humidity 95%, time 0.5h are solidified;
2) the 2nd stage, temperature 60 C, humidity 95%, time 1.0h are solidified;
3) the 3rd stage, temperature 70 C, humidity 90%, time 0.5h are solidified;
4) the 4th stage, 80 DEG C of temperature, humidity 80%, time 1.0h are solidified;
5) the 5th stage, 75 DEG C of temperature, humidity 85%, time 1.0h are solidified;
6) the 1st stage, 85 DEG C of temperature, humidity 0%, time 4h are dried;
(3) and then the punching pole plate that (2) obtain is detected, the positive plate free lead content after solidification is 0.2%, moisture 0.5%;Negative plate free lead content is 2%, when moisture is 0.5%, cools and solidifies room;
(4) thickness that the qualified positive plate and common process obtained (2) makes is that 1.8mm negative plate is fabricated to 12V7AH VRLA batteries according to normal process, the hour rate of battery 20 electric discharge can reach 21.8h, and initial 1C capacity is 41min.
Comparative example 1
(1) it is made up of as follows percentage by weight according to the material of positive lead plaster:Lead powder 80%;Dilute sulfuric acid 10%;Pure water 20%;Chopped fiber 0.8%;4BS 20% is coated on the punching grid that. g., lead tape thickness is 0.7mm;Paint the punching pole plate that thickness is 2.5mm;
(2) the punching pole plate of above-mentioned acquisition is performed in curing room and by following steps so that monolithic form is evenly laid out:
1) the 1st stage, temperature 45 C, humidity 100%, time 24h are solidified;
2) the 2nd stage, temperature 50 C, humidity 50%, time 20h are solidified;
3) the 1st stage, 85 DEG C of temperature, humidity 0%, time 24h are dried;
(3) and then the punching pole plate that (2) obtain is detected, the positive plate free lead content after solidification is 0.2%, moisture 0.5%;Negative plate free lead content is 2%, when moisture is 0.5%, cools and solidifies room;
(4) thickness that the qualified positive plate and common process obtained (2) makes is that 1.8mm negative plate is fabricated to 12V7AH VRLA batteries according to normal process, the hour rate of battery 20 electric discharge can reach 21.2h, and initial 1C capacity is 42min.
Here embodiment 1~3 is the curing and dying process of the embodiment of the present invention, and comparative example 1 is then according to conventional three sections of curing and dying process, the process of remaining production lead-acid accumulator is identical, and the lead-acid accumulator obtained to embodiment 1,2,3 and comparative example 1 carries out discharge cycles 100 times under 1C.Through circulation, it was found that the attenuation of embodiment 1,2,3 and comparative example 1 difference is respectively 1.2%, 1.34%, 1.09%, after dissecting battery after circulation, detect the weight of positive plate active material, the difference of the positive plate weight change of embodiment 1~3 and comparative example 1 is respectively 0.84%, 0.76%, 0.91%, and weight change is within 1%.
Compare for convenience, by lead-acid storage battery production, conventional curing and dying process is listed below:
1) the 1st stage, 40 DEG C~45 DEG C of temperature, humidity 98~100%, 16~24h of time are solidified;
2) the 2nd stage, temperature 45 C~55 DEG C, humidity 40~50%, 16~24h of time are solidified;
3) the 1st stage, 75~85 DEG C of temperature, humidity 0%, time 24h are dried.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, and any modification, equivalent substitution or improvement for being made within the spirit and principles of the invention etc., should be included in the scope of the protection.

Claims (7)

  1. A kind of 1. fast-curing process of accumulator plate, including at least following procedure step:
    1) solidified for the 1st stage:Temperature 60 C~65 DEG C, humidity 95%~100%, time 0.5h~1.0h;
    2) solidified for the 2nd stage:Temperature 60 C~65 DEG C, humidity 90%~95%, time 0.5h~1.0h;
    3) solidified for the 3rd stage:Temperature 70 C~75 DEG C, humidity 85%~90%, time 0.5h~1.0h;
    4) solidified for the 4th stage:80 DEG C~85 DEG C of temperature, humidity 80%~85%, time 1.0h~2.5h;
    5) solidified for the 5th stage:Temperature 70 C~75 DEG C, humidity 85%~90%, time 0.5h~1.0h;
    6) dried for the 1st stage:80 DEG C~85 DEG C of temperature, humidity 0%, time 1.0h~4.0h.
  2. 2. curing process as claimed in claim 1, it is characterised in that:The plumbean for the pole plate being cured Cream is made up of the following material of percentage by weight:Lead powder 30%~80%;Dilute sulfuric acid 10%~20%;Pure water 8%~20%;Chopped fiber 0.8%~1.2%;4BS 0.5%~20%.
  3. 3. curing process as claimed in claim 1, it is characterised in that:Monolithic is used in the solidification process Or biplate pole puts capable solidification into.
  4. 4. curing process as claimed in claim 1, it is characterised in that:In the positive plate after solidification, Free lead content is 0.2%~3%, and moisture is 0.1%~0.5%;Negative plate free lead content is 0.2%~5%, moisture is 0.1%~0.5%.
  5. 5. curing process as claimed in claim 1, it is characterised in that:The grid of the pole plate be punching or Draw in the net grid.
  6. 6. curing process as claimed in claim 5, it is characterised in that:Grid. g., lead tape is drawn in the net in the punching Thickness is 0.7mm~1.0mm.
  7. 7. curing process as claimed in claim 5, it is characterised in that:The thickness of the punching positive plate≤ 2.5mm, thickness≤1.8mm of punching negative plate.
CN201610284159.XA 2016-05-03 2016-05-03 Rapid curing process of storage battery pole plate Active CN107342396B (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108232123A (en) * 2017-12-26 2018-06-29 浙江天能动力能源有限公司 A kind of lead-acid storage battery positive electrode plate for electric curing process
CN108767202A (en) * 2018-06-11 2018-11-06 深圳市瑞达电源有限公司 The manufacturing method of polar plate of lead acid storage battery
CN112002876A (en) * 2020-07-23 2020-11-27 天能电池集团股份有限公司 Quick manufacturing process for lead storage battery pole plate
CN114447287A (en) * 2020-11-04 2022-05-06 双登集团股份有限公司 Method for shortening curing period of start-stop lead-acid storage battery pole plate

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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
CN104377359A (en) * 2014-10-15 2015-02-25 超威电源有限公司 Deep-cycle-resistant lead-acid storage battery anode lead paste formula and preparation process thereof
CN105119021A (en) * 2015-10-08 2015-12-02 深圳市雄韬电源科技股份有限公司 Electrode plate curing method capable of improving battery deep cycle life
CN105428606A (en) * 2015-11-12 2016-03-23 骆驼集团蓄电池研究院有限公司 Storage battery curing process

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN104377359A (en) * 2014-10-15 2015-02-25 超威电源有限公司 Deep-cycle-resistant lead-acid storage battery anode lead paste formula and preparation process thereof
CN105119021A (en) * 2015-10-08 2015-12-02 深圳市雄韬电源科技股份有限公司 Electrode plate curing method capable of improving battery deep cycle life
CN105428606A (en) * 2015-11-12 2016-03-23 骆驼集团蓄电池研究院有限公司 Storage battery curing process

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108232123A (en) * 2017-12-26 2018-06-29 浙江天能动力能源有限公司 A kind of lead-acid storage battery positive electrode plate for electric curing process
CN108232123B (en) * 2017-12-26 2020-05-12 浙江天能动力能源有限公司 Curing process for positive plate of lead-acid storage battery for electric automobile
CN108767202A (en) * 2018-06-11 2018-11-06 深圳市瑞达电源有限公司 The manufacturing method of polar plate of lead acid storage battery
CN108767202B (en) * 2018-06-11 2021-06-08 衡阳瑞达电源有限公司 Method for manufacturing lead-acid storage battery pole plate
CN112002876A (en) * 2020-07-23 2020-11-27 天能电池集团股份有限公司 Quick manufacturing process for lead storage battery pole plate
CN112002876B (en) * 2020-07-23 2022-03-01 天能电池集团股份有限公司 Quick manufacturing process for lead storage battery pole plate
CN114447287A (en) * 2020-11-04 2022-05-06 双登集团股份有限公司 Method for shortening curing period of start-stop lead-acid storage battery pole plate

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