CN109065846A - Positive electrode plate of lead-acid battery curing process - Google Patents
Positive electrode plate of lead-acid battery curing process Download PDFInfo
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- CN109065846A CN109065846A CN201810848632.1A CN201810848632A CN109065846A CN 109065846 A CN109065846 A CN 109065846A CN 201810848632 A CN201810848632 A CN 201810848632A CN 109065846 A CN109065846 A CN 109065846A
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- circulating fan
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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
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/14—Electrodes for lead-acid accumulators
- H01M4/16—Processes of manufacture
- H01M4/20—Processes of manufacture of pasted electrodes
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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
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/14—Electrodes for lead-acid accumulators
- H01M4/16—Processes of manufacture
- H01M4/20—Processes of manufacture of pasted electrodes
- H01M4/21—Drying of pasted electrodes
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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 discloses a kind of positive electrode plate of lead-acid battery curing process, the technique includes moisturizing stage, oxidation stage and drying stage, the oxidation stage includes oxidative cure stage and oxidation drying stage, and the oxidative cure stage includes first segment oxidative cure, second segment oxidative cure and third section oxidative cure.The present invention passes through the control of anode plate curing process, good to anode plate solidification effect, the presence of grid corrosion and section tomography almost without blackspot and loophole, the regular flawless appearance of polar board surface, intensity with higher.
Description
Technical field
The invention belongs to electrochemical technology fields.More particularly to a kind of positive electrode plate of lead-acid battery curing process.
Technical background
During lead-acid storage battery production, polar plate solidification is very important a link.As lead-acid accumulator
Primary clustering, pole plate have a critical effect to the quality of battery, the reason of the solidification quality of pole plate to polar plate of lead acid storage battery
Changing parameter and battery performance has significant impact.
In polar plate solidification technical process, technology controlling and process has the capacity of pole plate, service life, chemical conversion complexity biggish
It influences, how to control reasonable curing process condition in actual production, keep the phase content of lead plaster suitable and keep firm
Frame structure, and be conducive to subsequent formation process, it is to need constantly deeply to be probed into technical problem.
Summary of the invention
In order to solve the above-mentioned technical problems, the present invention provides a kind of positive electrode plate of lead-acid battery curing process, the works
For skill by the control of solidification process and curing process condition, solidification has obtained that properties are excellent, significantly improves battery performance
Anode plate.The present invention is achieved by the following technical solutions
A kind of positive electrode plate of lead-acid battery curing process, the technique include moisturizing stage, oxidation stage and drying stage；
The moisturizing stage, under curing room inner seal ring border, moisturizing temperature is 43 DEG C~50 DEG C, moisturizing humidity is 99.6%
~100%, moisture preserving time is 18h~25h, and moisturizing stage solidification indoor circulation rotation speed of fan is circulating fan maximum (top) speed
20%；Water atomization and steam atomization are carried out in curing room simultaneously；
The oxidation stage includes oxidative cure stage and oxidation drying stage, and the time of the oxidation stage is 23~27
Hour；
The oxidative cure stage: under curing room inner seal ring border, temperature when oxidative cure is 50 DEG C~65 DEG C, oxidation
Humidity when solidification is 90%~100%, the time of oxidative cure is 20~23 hours, oxidative cure stage solidification indoor circulation
The revolving speed of blower is the 30%~65% of circulating fan maximum (top) speed, carries out water atomization and/or steam atomization in curing room；
The oxidation drying stage: under curing room inner seal ring border, temperature when oxidation drying is 45 DEG C~54 DEG C, oxidation
Humidity when dry is 80%, oxidation drying when time be 3~4 hours, oxidation drying stage solidification indoor circulation blower
Revolving speed is the 80% of circulating fan maximum (top) speed；
The drying stage, the humidity under curing room inner seal ring border, when temperature when dry is 45 DEG C~65 DEG C, is dry
Time for 10~20%, dry is 18~21 hours, in drying stage curing room the revolving speed of circulating fan be circulating fan most
The 100% of big revolving speed.
Further, the moisturizing stage is specific as follows: to water atomization and steam atomization is carried out simultaneously in curing room, then
Set solidify room temperature as 43 ± 3 DEG C, humidity be 99.6~100%, circulating fan rotating speed is circulating fan maximum (top) speed
20%, 1h is preheated under this condition in curing room；Anode plate to be solidified is slowly put into curing room after the completion of preheating；Just
After pole pole plate is completely into curing room, 43 ± 3 DEG C, humidity be 99.6~100%, circulating fan rotating speed be circulating fan maximum
Moisturizing 1h under conditions of the 20% of revolving speed；After the completion of moisturizing, will solidify indoor temperature by 43 ± 3 DEG C be warming up to 50 ± 5 DEG C it is (wet
Degree still maintains still be circulating fan maximum (top) speed for 99.6~100%, circulating fan rotating speed 20%), anode plate is at this
Under the conditions of 16 ± 1h of moisturizing, the moisturizing stage of anode plate is completed after the completion of moisturizing.
Further, the anode plate by initially enter curing room in completely into curing room the required time≤
5h；Solidify room temperature as 43 ± 3 DEG C be warming up to 50 ± 5 DEG C used in the time be 0.5~1 hour.
Further, the oxidative cure stage includes first segment oxidative cure, second segment oxidative cure and third section oxygen
Change solidification, the oxidative cure stage and oxidation drying stage the following steps are included:
A. first segment oxidative cure: the anode plate for completing the moisturizing stage enters in the curing room of oxidation stage, curing room
Interior while carrying out water atomization and steam atomization, setting solidification room temperature is that 60 ± 5 DEG C, humidity are 99.6%~100%, recycle
Rotation speed of fan is the 30% of circulating fan maximum (top) speed, and anode plate preheats 1 hour under this condition, at this after the completion of preheating
First segment oxidative cure is completed in oxidative cure 15 ± 1 hours under part；
B. second segment oxidative cure: after anode plate completes first segment oxidative cure, stop steam atomization in curing room
(only carry out water atomization), solidification room temperature is cooled to 50 DEG C~54 DEG C by 60 ± 5 DEG C, humidity is down to by 99.6%~100%
93%~95%, circulating fan rotating speed is the 60%~65% of circulating fan maximum (top) speed, and anode plate aoxidizes under this condition
The oxidative cure of second stage is completed in solidification 1 hour；
C. third section oxidative cure: after the completion of second segment oxidative cure, anode plate in curing room in water atomization, temperature
Being down to 90%~92%, circulating fan rotating speed by 93%~95% for 50 DEG C~54 DEG C, humidity is circulating fan maximum (top) speed
Oxidative cure 3 hours under conditions of 60%~65%, i.e. completion third section oxidative cure.
D. oxidation drying stage: after the completion of third section oxidative cure, stop water atomization (i.e. in curing room neither in curing room
Carry out steam atomization, also without water atomization), then solidify indoor temperature by 50 DEG C~54 DEG C be cooled to 45 DEG C, humidity by
90%~92% is down to 80%, and circulating fan rotating speed is set as the 80% of circulating fan maximum (top) speed, and anode plate is in the condition
Oxidation drying 3 hours；After the completion of oxidation drying, that is, complete the oxidation stage of anode plate.
Further, described in step b solidification room temperature by 60 ± 5 DEG C be cooled to 50 DEG C~54 DEG C, simultaneously humidity by
99.6~100% be cooled to 93%~95% used in the time be 0.5~1 hour；Solidification indoor humidity is by 93% described in step c
~95% be down to 90%~92% used in the time be 0.5~1 hour；Solidification room temperature is by 50 DEG C~54 DEG C described in step d
Be cooled to 45 DEG C, simultaneously humidity be down to 80% as 90%~92% required for the time be 0.5~1 hour.
Further, the drying stage includes that first segment is dry and second segment is dry, the specific steps are as follows:
E. first segment is dry: the anode plate for completing oxidation stage being placed in the curing room of drying stage, drying stage
Solidification room temperature be 45 ± 5 DEG C, humidity 20%, the revolving speed of circulating fan is set as circulating fan maximum (top) speed
100%, and stop water atomization and steam atomization, anode plate preheats 1 hour, after the completion of preheating under this condition, in the condition
Under (temperature is 45 ± 5 DEG C, humidity 20%, and the revolving speed of circulating fan is set as the 100% of circulating fan maximum (top) speed) dry 3
Hour, i.e. completion first segment is dry；
F. second segment is dry: after the completion of first segment is dry, solidify indoor temperature by 45 ± 5 DEG C be warming up to 65 ± 5 DEG C, it is wet
Degree is down to 10% by 20%, and the revolving speed of circulating fan is set as the 100% of circulating fan maximum (top) speed, still without water atomization and steaming
Steam fog, anode plate are dried 15 ± 1 hours under this condition, and the drying stage of anode plate is completed after the completion of dry.
Further, solidification room temperature described in step f by 45 ± 5 DEG C is warming up to 65 ± 5 DEG C, humidity is down to by 20%
Time used in 10% is 0.5~1 hour.
Further, the maximum (top) speed of circulating fan is 2500r/min in the curing room.
The curing room that the present invention uses is common curing room, and the control that temperature, humidity etc. solidify indoor conditions passes through electricity
Control cabinet program is controlled.
Compared with prior art, the present invention has following positive beneficial effect
Moisturizing stage, oxidation stage and drying stage of the present invention are completed in different curing rooms respectively, respectively
It is unaffected, pole plate will not be insufficient by temperature and humidity variation and by large effect, to influence to solidify the property of pole plate
Energy；
The pole plate corrosion layer effect that the control that the present invention passes through curing process obtains is fine, does not have blackspot, and also there is no split
Line, pole plate section tomography are very full.
The anode plate of curing process preparation through the invention, further improves the performance of grid, 1 meter of height falls three
It is secondary, test its fall strength of briquette < 0.9%；Moisture content≤0.16% of pole plate is obtained, grid corrosion layer surface is almost without black
The presence of spot；
Using charge and discharge 3 times under the conditions of battery 10A, 10.5V of pole plate preparation, the charge and discharge time reaches 130min,
Still there are higher circulation volume, and battery consistency with higher under the conditions of low temperature (- 18 DEG C)；Therefore, using this hair
The anode plate that the bright curing process obtains not only ensure that the performance of battery, also ensure the consistency, steady of battery quality
It is qualitative.
Detailed description of the invention
Fig. 1 is one of the front elevation of anode plate after solidifying；
Fig. 2 is two of the front elevation of anode plate after solidifying；
Fig. 3 is three of the front elevation of anode plate after solidifying；
Fig. 4 is four of the front elevation of anode plate after solidifying；
Fig. 5 is the cross-section diagram of anode plate after solidifying；
Specific embodiment
The present invention is described in more details below by specific embodiment, but is not intended to restrict the invention
Protection scope.
(Jiangsu tricyclic, power control cabinet program can control warm and humid the curing room and power control cabinet program used in following embodiment
Degree, rotation speed of fan, heating-cooling time), wherein the maximum (top) speed of circulating fan is 2500r/min.
Embodiment 1
A kind of positive electrode plate of lead-acid battery curing process, the technique include moisturizing stage, oxidation stage and drying stage；
Detailed process is as follows:
(1) the moisturizing stage:
It is that 99.6%~100%, circulating fan rotating speed is set that the indoor temperature of solidification is set first as 43 ± 3 DEG C, humidity
It is the 20% of circulating fan maximum (top) speed, carries out water atomization and steam atomization in curing room simultaneously；After setting, curing room is at this
Under the conditions of preheat 1 hour；After the completion of preheating, anode plate to be solidified is placed on pole plate frame, it then will be with positive pole
The pole plate frame of plate slowly enters in curing room, and the pole plate frame with anode plate is by initially entering curing room until completely into solid
Change the time used in room no more than 5 hours, anode plate and pole plate frame are in temperature completely into curing room is closed after curing room
43 ± 3 DEG C, humidity be 99.6%~100%, 20% that the revolving speed of circulating fan is circulating fan maximum (top) speed, while curing room
Moisturizing 1 hour under conditions of interior progress water atomization and steam atomization；
After anode plate moisturizing 1 hour, indoor temperature will be solidified by 43 ± 3 DEG C and be warming up to 50 ± 5 DEG C, other conditions
Do not change still, under this condition, anode plate moisturizing 16 ± 1 hours, after moisturizing reaches the time, that is, it is solid to complete anode plate
The moisturizing stage of chemical industry skill；
Should during, solidify room temperature as 43 ± 3 DEG C be warming up to 50 ± 5 DEG C used in the time be 0.5~1 hour, i.e.,
It is slowly heated up in curing room, guarantees that pole plate will not have an impact because of extraneous suddenly environmental change；
(2) oxidation stage:
The oxidation stage includes oxidative cure stage and oxidation drying stage；The oxidative cure stage includes the
One section of oxidative cure, second segment oxidative cure and third section oxidative cure；
First segment oxidative cure: set the solidification room temperature of oxidation stage as 60 ± 5 DEG C, humidity be 99.6%~
100%, circulating fan rotating speed is the 30% of circulating fan maximum (top) speed, while to progress water atomization and barber in curing room
Change；The curing room of oxidation stage preheats 1 hour under the setting condition, after the completion of preheating, will complete the positive pole in moisturizing stage
Plate moves into rapidly the curing room that preheating is completed in oxidation stage by the curing room in moisturizing stage, and anode plate is 60 ± 5 in temperature
DEG C, humidity be 99.6%~100%, 30% that circulating fan rotating speed is its maximum (top) speed, while to carrying out water mist in curing room
Change and steam atomization, under the conditions of oxidative cure 15 ± 1 hours, i.e., completion first segment oxidative cure；Stage major part lead conversion
At lead oxide, the active material with certain structure is formed, promotes grid oxidation to bond to form interfacial structure with active material, i.e.,
Grid corrosion layer；
Second segment oxidative cure: after anode plate completes first segment oxidative cure, stop solidifying indoor steam atomization (only
Carry out water atomization), and will solidify indoor temperature be set as 50 DEG C~54 DEG C, humidity set be 93%~95%, circulating fan
Revolving speed is set as the 60%~65% of circulating fan maximum (top) speed, anode plate oxidative cure 1 hour under this condition is completed
Second segment oxidative cure；At this stage, most lead has been reacted to lead oxide, temperature, humidity and the wind speed during being somebody's turn to do
Guarantee that the oxidation of lead slowly carries out, guarantees that lead sufficiently can be oxidized to lead oxide by whole curing room pole plate；
During being somebody's turn to do, solidification room temperature is cooled down by 60 ± 5 DEG C as 50 DEG C~54 DEG C, humidity by 99.6%~100% drop
It is 0.5~1 hour to the time used in 93%~95%, i.e. the variation of temperature and humidity is slowly to carry out；
Third section oxidative cure: after anode plate completes second segment oxidative cure, the indoor humidity of solidification is set as 90%
~92%, other conditions are identical as the condition of second segment oxidative cure；Anode plate oxidative cure 3 hours under this condition, i.e.,
Complete third section oxidative cure；The stage further ensure that the complete oxidation of lead；
Should during, solidify indoor humidity as 93%~95% be down to 90%~92% used in the time be 0.5~1 small
When, i.e. the variation of humidity slowly carries out；
The oxidation drying stage: after the completion of third section oxidative cure, stop the indoor water atomization of solidification and (solidify indoor steaming
Steam fogization and water atomization stop), set solidify indoor temperature as 45 DEG C, humidity 80%, circulating fan rotating speed be circulation
The 80% of blower maximum (top) speed, after the completion of setting, anode plate oxidation drying 3 hours under this condition；Complete positive pole
The oxidation stage of plate；Pole plate is completed the complete oxidation of lead and is effectively combined with grid when the stage, without being heated at high temperature,
Corresponding air humidity is accordingly reduced, and the wind speed of circulating fan ensure that the pole plate consistency of whole curing room；
Should during, solidify that indoor temperature by 50 DEG C~54 DEG C is cooled to 45 DEG C, humidity is down to by 90%~92%
Time used in 80% is 0.5~1 hour, that is, the variation for solidifying room temperature and humidity is slowly to carry out；
(3) drying stage
Set the indoor temperature of solidification of drying stage as 45 ± 5 DEG C, humidity 20%, circulating fan rotating speed be circulated air
100% (stopping water atomization and steam atomization completely) of machine maximum (top) speed, it is small that the curing room of drying stage preheats 1 under this condition
When；After the completion of preheating, the anode plate for completing oxidation stage is transferred to drying stage by the curing room of oxidation stage rapidly
In curing room, anode plate is dry 3 under conditions of temperature is 45 ± 5 DEG C, humidity 20%, circulating fan rotating speed are 100%
Hour；After the completion of drying, will solidify indoor temperature be set as 65 ± 5 DEG C, humidity set 10%, circulating fan rotating speed be still
100%, anode plate is dried 15 ± 1 hours under this condition, and the drying stage of anode plate is completed after the completion of dry.Just
The curing process of anode plate is completed after the completion of the pole plate drying stage of pole；The pole plate dehydration of the stage solidification reduces pole plate
The content of moisture, while the reaction of free lead can be completed；
Should during, solidify room temperature as 45 ± 5 be warming up to 65 ± 5 DEG C, humidity as 20% be down to 10% used in when
Between be 0.5~1 hour, i.e. the variation of the solidification room temperature and humidity of drying stage is slowly to carry out.
Embodiment 2
A kind of positive electrode plate of lead-acid battery curing process, the technique include moisturizing stage, oxidation stage and drying stage；
Detailed process is as follows:
(1) the moisturizing stage:
Set first solidify indoor temperature as 43 ± 3 DEG C, humidity 100%, circulating fan revolving speed be circulating fan
The 20% of maximum (top) speed, while water atomization and steam atomization are carried out in curing room；After setting, curing room preheats under this condition
1 hour；After the completion of preheating, anode plate to be solidified is placed on pole plate frame and (places 1200 positive poles on pole plate frame
Plate is solidified), then will be slowly entered in curing room with the pole plate frame of anode plate, the pole plate frame with anode plate by
Initially entering completely into the time used in curing room is 3 hours, after anode plate and pole plate frame are completely into curing room,
Temperature is 43 DEG C, the revolving speed of humidity 100%, circulating fan is the 20% of its maximum (top) speed, while water mist is carried out in curing room
Change and moisturizing 1 hour under conditions of steam atomization；
After anode plate moisturizing 1 hour, indoor temperature will be solidified by 43 ± 3 DEG C and be warming up to 50 DEG C, other conditions are still
Do not change, under this condition, anode plate moisturizing 16 hours, after moisturizing reaches the time, that is, completes anode plate solidification work
The moisturizing stage of skill；
Should during, solidify room temperature as 43 ± 3 DEG C be warming up to 50 DEG C used in the time be 1 hour, i.e., to curing room
Slowly heated up；
The water content of anode plate and free lead content are detected after this section, the results are shown in Table 1；
(2) oxidation stage:
The oxidation stage includes oxidative cure stage and oxidation drying stage；The oxidative cure stage includes the
One section of oxidative cure, second segment oxidative cure and third section oxidative cure；
First segment oxidative cure: the solidification room temperature of oxidation stage is set as 60 DEG C, humidity 100%, circulating fan
Revolving speed is the 30% of its maximum (top) speed, while to progress water atomization and steam atomization in curing room；The curing room of oxidation stage exists
It is preheated 1 hour under the setting condition, after the completion of preheating, the anode plate in moisturizing stage will be completed, by the curing room in moisturizing stage
Move into oxidation stage rapidly and be completed the curing room of preheating, anode plate temperature be 60 DEG C, humidity 100%, circulating fan
Revolving speed is the 30% of its maximum (top) speed, while to water atomization and steam atomization is carried out in curing room, under this condition oxidative cure 15
Hour, that is, complete first segment oxidative cure；
Second segment oxidative cure: after anode plate completes first segment oxidative cure, stop solidifying indoor steam atomization (only
Carry out water atomization), and will solidify indoor temperature be set as 54 DEG C, humidity set 95%, circulating fan rotating speed be set as it
The 60% of maximum (top) speed, anode plate oxidative cure 1 hour under this condition, i.e. completion second segment oxidative cure；
Should during, solidify room temperature as 60 DEG C cooling be 54 DEG C, humidity as 100% be down to 95% used in the time be
1 hour, i.e. the variation of temperature and humidity is slowly to carry out；
Third section oxidative cure: after anode plate completes second segment oxidative cure, set and solidifies indoor humidity as 92%,
Other conditions are identical as the condition of second segment oxidative cure；Anode plate oxidative cure 3 hours under this condition, i.e. completion third
Section oxidative cure；
Should during, solidify indoor humidity as 95% be down to 92% used in the time be 1 hour, i.e. the variation of humidity is slow
Slow-motion row；
The oxidation drying stage: after the completion of third section oxidative cure, stop the indoor water atomization of solidification and (solidify indoor steaming
Steam fogization and water atomization stop), set solidify indoor temperature as 45 DEG C, humidity 80%, circulating fan rotating speed be its most
The 80% of big revolving speed, after the completion of setting, anode plate oxidation drying 3 hours under this condition；Complete the oxygen of anode plate
The change stage；
Should during, solidify indoor temperature as 54 DEG C be cooled to 45 DEG C, humidity as 92% be down to 80% used in the time
It is 1 hour, that is, the variation for solidifying room temperature and humidity is slowly to carry out；
The water content of anode plate and free lead content are detected after this section, the results are shown in Table 1；
(3) drying stage
The indoor temperature of solidification of drying stage is set as 45 DEG C, humidity 20%, circulating fan rotating speed 100%, Gu
Change room to preheat under this condition 1 hour；After the completion of preheating, by the anode plate for completing oxidation stage consolidating by oxidation stage rapidly
Change room to be transferred in the curing room of drying stage, anode plate is temperature is 45 DEG C, humidity 20%, circulating fan rotating speed are
It is 3 hours dry under conditions of 100%；After the completion of drying, will solidify indoor temperature be set as 65 DEG C, humidity set 10%,
Circulating fan rotating speed is still 100%, and anode plate is dried 15 hours under this condition, completes anode plate after the completion of dry
Drying stage.The curing process of anode plate is completed after the completion of anode plate drying stage；
Should during, solidify room temperature as 45 be warming up to 65 DEG C, humidity as 20% be down to 10% used in the time be 1 small
When, i.e. the variation of the solidification room temperature and humidity of drying stage is slowly to carry out.
The water content of anode plate and free lead content are detected after this section, the results are shown in Table 1；
Following performance detection has been carried out to the anode plate after solidification:
(1) fall strength of briquette of the anode plate after solidifying by curing process of the present invention is detected, is randomly selected
20 solidify after anode plate, freely fallen by 1 meter of high height, record the quality before each pole plate to be detected falls,
Then fall three times, record fall the average value of rear three inferior quality, test result is as shown in table 3；
Fall strength of briquette=((pole plate falls preceding quality-pole plate and falls rear quality)/pole plate falls preceding quality) * 100%
(2) take the different zones of the anode plate after solidifying in the embodiment, carry out XRD detection, test wherein respectively at
The content divided, each domain test are averaged three times, and the results are shown in Table 4；
(3) to the battery of the anode plate preparation after being solidified using the curing process, four groups of batteries therein is chosen and are carried out
Performance detection, as shown in table 5~8；
(4) surface of the anode plate after solidifying and cross-section diagram as shown in fig. 1~fig. 5, by FIG. 1 to FIG. 4 it can be seen that,
The surface of anode plate after present invention process solidifies does not have blackspot；As seen from Figure 5, curing process solidification of the present invention
Anode plate section afterwards is full, hole is not present；Curing process i.e. of the present invention significantly improves the quality and property of anode plate
Energy.
Embodiment 3
A kind of positive electrode plate of lead-acid battery curing process, the technique include moisturizing stage, oxidation stage and drying stage；
Detailed process is as follows:
(1) the moisturizing stage:
Set first solidify indoor temperature as 45 DEG C, humidity 99.8%, circulating fan revolving speed be circulating fan most
The 20% of big revolving speed, while water atomization and steam atomization are carried out in curing room；After setting, curing room preheats 1 under this condition
Hour；After the completion of preheating, anode plate to be solidified is placed on pole plate frame and (places 1200 anode plates on pole plate frame),
Then the pole plate frame with anode plate is slowly entered in curing room, the pole plate frame with anode plate is by having initially entered
Entering the time used in curing room entirely is 2 hours, after anode plate and pole plate frame are completely into curing room, temperature be 45 DEG C,
Humidity is 99.8%, the revolving speed of circulating fan is circulating fan maximum (top) speed 20%, at the same curing room in carry out water atomization and
Moisturizing 1 hour under conditions of steam atomization；
After anode plate moisturizing 1 hour, indoor temperature will be solidified by 45 DEG C and be warming up to 55 DEG C, other conditions do not change still
Become, under this condition, anode plate moisturizing 15 hours, after moisturizing reaches the time, that is, completes anode plate curing process
The moisturizing stage；
Should during, solidify room temperature as 45 DEG C be warming up to 55 DEG C used in the time be 0.6 hour, i.e., to curing room into
Row slowly heating；
The water content of anode plate and free lead content are detected after this section, the results are shown in Table 2；
(2) oxidation stage:
The oxidation stage includes oxidative cure stage and oxidation drying stage；The oxidative cure stage includes the
One section of oxidative cure, second segment oxidative cure and third section oxidative cure；
First segment oxidative cure: the solidification room temperature of oxidation stage is set as 65 DEG C, humidity 99.6%, circulating fan
Revolving speed is the 30% of circulating fan maximum (top) speed, while to progress water atomization and steam atomization in curing room；Oxidation stage is consolidated
Change room to preheat 1 hour under the setting condition, after the completion of preheating, the anode plate in moisturizing stage will be completed, by the moisturizing stage
Curing room moves into rapidly the curing room that preheating is completed in oxidation stage, and anode plate is 65 DEG C, humidity 99.6%, follows in temperature
Ring rotation speed of fan is the 30% of its maximum (top) speed, while to carrying out water atomization and steam atomization in curing room, under the conditions of aoxidize it is solid
Change 14 hours, i.e. completion first segment oxidative cure；
Second segment oxidative cure: after anode plate completes first segment oxidative cure, stop solidifying indoor steam atomization (only
Carry out water atomization), and will solidify indoor temperature be set as 50 DEG C, humidity set 93%, circulating fan rotating speed be set as it
The 65% of maximum (top) speed, anode plate oxidative cure 1 hour under this condition, i.e. completion second segment oxidative cure；
Should during, solidify room temperature as 65 DEG C cooling be 50 DEG C, humidity as 99.6% be down to 93% used in the time
It is 0.6 hour, i.e. the variation of temperature and humidity is slowly to carry out；
Third section oxidative cure: after anode plate completes second segment oxidative cure, set and solidifies indoor humidity as 90%,
Other conditions are identical as the condition of second segment oxidative cure；Anode plate oxidative cure 3 hours under this condition, i.e. completion third
Section oxidative cure；
Should during, solidify indoor humidity as 93% be down to 90% used in the time be 0.5 hour, i.e. the variation of humidity is
Slowly carry out；
The oxidation drying stage: after the completion of third section oxidative cure, stop the indoor water atomization of solidification and (solidify indoor steaming
Steam fogization and water atomization stop), set solidify indoor temperature as 45 DEG C, humidity 80%, circulating fan rotating speed be its most
The 80% of big revolving speed, after the completion of setting, anode plate oxidation drying 3 hours under this condition；Complete the oxygen of anode plate
The change stage；
Should during, solidify indoor temperature as 50 DEG C be cooled to 45 DEG C, humidity as 90% be down to 80% used in the time
It is 0.8 hour, that is, the variation for solidifying room temperature and humidity is slowly to carry out；
The water content of anode plate and free lead content are detected after this section, the results are shown in Table 2；
(3) drying stage
It is that its maximum turns that the indoor temperature of solidification of drying stage, which is set, as 45 DEG C, humidity 20%, circulating fan rotating speed
The 100% of speed, curing room preheats 1 hour under this condition；After the completion of preheating, will complete the anode plate of oxidation stage rapidly by
The curing room of oxidation stage is transferred in the curing room of drying stage, and anode plate is 45 DEG C, humidity 20%, recycles in temperature
Rotation speed of fan is 3 hours dry under conditions of being 100%；After the completion of drying, it will solidify that indoor temperature is set as 65 DEG C, humidity sets
Being set to 10%, circulating fan rotating speed is still 100%, and anode plate is dried 16 hours under this condition, is completed after the completion of dry
The drying stage of anode plate.The curing process of anode plate is completed after the completion of anode plate drying stage；
Should during, solidify room temperature as 45 be warming up to 65 DEG C, humidity as 20% be down to 10% used in the time be 0.8
Hour, i.e. the variation of the solidification room temperature and humidity of drying stage is slowly to carry out.
The water content of anode plate and free lead content are detected after this section, the results are shown in Table 2；
Moisture content and free lead content testing result in 1 embodiment of table, 2 polar plate solidification technique after every section
Moisture content and free lead content testing result in 2 embodiment of table, 3 polar plate solidification technique after every section
From the detection data of table 1 and table 2: curing process of the present invention solidify after pole plate in free lead content it is flat
Mean value < 4%, the equal < 0.16% of water content in pole plate；(pole plate moisture≤0.3%, free lead≤4.5% are qualified), i.e., it is of the invention
Moisture content is considerably beyond standard requirements in cured pole plate, and free lead content reaches requirement, gained solidify after pole plate performance
It is improved.
The fall strength of briquette testing result of the anode plate after solidifying of table 3
As shown in Table 3, anode plate after solidifying by curing process of the present invention falls the equal < 0.9% of rate, that is, passes through
It crosses curing process of the present invention and has obtained good solidification effect.
The composition detection result of the anode plate after solidifying of table 4
Four basic lead sulphates generate stronger, longer acicular crystal than tribasic lead sulfate, and interlaced, constitute
The skeleton structure of active material can increase plate strength, extend the service life cycle of battery；Four basic lead sulphates and three
Basic lead sulphate is constituted by a certain percentage, can overcome early stage capacitance loss caused by lead calcium, low antimony.The change of four basic lead sulphates
There is " memory effect " at reaction, i.e., electrochemical reaction process is the replacement having occurred between substance, therefore, is made after being melted into just
Pole active material maintains the tridimensional network after presoma solidifies, and macroscopical skeleton structure does not change, enhances pole plate
Intensity, extend the cycle life of lead-acid battery.
The present invention solidify after anode plate in four basic lead sulphates and in the presence of tribasic lead sulfate, overcoming early stage holds
Amount loss, enhances the intensity of pole plate, extends the cycle life of lead-acid battery.
The performance test results of 5 battery of table
The performance test results of 6 battery of table
The performance test results of 7 battery of table
The performance test results of 8 battery of table
From the above testing result: the present invention solidify after anode plate preparation battery, have good consistency,
Performance is good, stability is strong；And under cryogenic, charge/discharge capacity reaches 98min.
Claims (8)
1. a kind of positive electrode plate of lead-acid battery curing process, which includes moisturizing stage, oxidation stage and drying stage；Its
It is characterized in that,
The moisturizing stage, under curing room inner seal ring border, moisturizing temperature is 43~50 DEG C, moisturizing humidity be 99.6%~
100%, moisture preserving time is 18h~25h, and the revolving speed of moisturizing stage solidification indoor circulation blower is circulating fan maximum (top) speed
20%；
The oxidation stage includes oxidative cure stage and oxidation drying stage, the total time of the oxidation stage be 23h~
27h；
The oxidative cure stage: under curing room inner seal ring border, temperature when oxidative cure is 50 DEG C~65 DEG C, humidity is
90%~100%, the time is 20h~23h, and the revolving speed of oxidative cure stage solidification indoor circulation blower turns for circulating fan maximum
The 30~65% of speed, curing room is interior to carry out water atomization and/or steam atomization；
The oxidation drying stage, under curing room inner seal ring border, temperature when oxidation drying is 45 DEG C~54 DEG C, humidity is
80%, the time is 3~4 hours, and the revolving speed of oxidation drying stage solidification indoor circulation blower is circulating fan maximum (top) speed
80%；
The drying stage, under curing room inner seal ring border, temperature when dry is 45 DEG C~65 DEG C, humidity is 10~20%,
The dry time is 18~21 hours, and the revolving speed of circulating fan is 100% in drying stage curing room.
2. positive electrode plate of lead-acid battery curing process according to claim 1, which is characterized in that the moisturizing stage tool
Body is as follows: to water atomization and steam atomization is carried out simultaneously in curing room, then setting solidification room temperature as 43 ± 3 DEG C, humidity is
99.6~100%, circulating fan rotating speed is the 20% of circulating fan maximum (top) speed, preheats 1h under this condition；It will after the completion of preheating
Anode plate to be solidified is slowly put into curing room；After anode plate is completely into curing room, it is in 43 ± 3 DEG C, humidity
99.6~100%, circulating fan rotating speed is moisturizing 1h under conditions of the 20% of circulating fan maximum (top) speed；It, will after the completion of moisturizing
Solidify indoor temperature and be warming up to 50 ± 5 DEG C by 43 ± 3 DEG C, humidity and circulating fan rotating speed do not change, and anode plate is at this
16 ± 1h of moisturizing under part completes the moisturizing of anode plate after the completion of moisturizing.
3. positive electrode plate of lead-acid battery curing process according to claim 2, which is characterized in that the anode plate is complete
Enter required time≤5h in curing room entirely；Solidify room temperature as 43 ± 3 DEG C be warming up to 50 ± 5 DEG C used in the time be
0.5~1 hour.
4. positive electrode plate of lead-acid battery curing process according to claim 1, which is characterized in that the oxidative cure rank
Section includes first segment oxidative cure, second segment oxidative cure and third section oxidative cure；The oxidative cure stage and oxidation are dry
The dry stage the following steps are included:
A. first segment oxidative cure: carrying out water atomization and steam atomization simultaneously in the curing room of oxidation stage, solidify room temperature
For 60 ± 5 DEG C, humidity be 99.6%~100%, circulating fan rotating speed is circulating fan maximum (top) speed 30%, with this condition
The curing room of oxidation stage is preheated 1 hour；After the completion of preheating, after the anode plate for completing the moisturizing stage is moved into the preheating
In curing room, solidifies 15 ± 1 hours in curing room internal oxidition, complete first segment oxidative cure；
B. second segment oxidative cure: after anode plate completes first segment oxidative cure, stop steam atomization, solidification in curing room
Room temperature by 60 ± 5 DEG C be cooled to 50~54 DEG C, humidity by 99.6%~100% be down to 93%~95%, circulating fan turn
Speed is the 60%~65% of circulating fan maximum (top) speed, anode plate oxidative cure 1 hour under this condition, i.e. completion second-order
The oxidative cure of section；
C. third section oxidative cure: after the completion of second segment oxidative cure, solidification indoor conditions is set as water atomization, temperature be 50~
54 DEG C, humidity by 95%~93% be down to 90%~92%, circulating fan rotating speed be circulating fan maximum (top) speed 60%~
65%, anode plate is in oxidative cure 3 hours under this condition, i.e. completion third section oxidative cure.
D. oxidation drying stage: after the completion of third section oxidative cure, stop water atomization in curing room, then solidify indoor temperature
By 50 DEG C~54 DEG C be cooled to 45 DEG C, humidity by 90%~92% be down to 80%, circulating fan rotating speed is set as circulating fan most
The 80% of big revolving speed, anode plate was at the condition oxidation drying 3 hours；After the completion of oxidation drying, that is, complete the oxygen of anode plate
The change stage.
5. positive electrode plate of lead-acid battery curing process according to claim 4, which is characterized in that
Described in step b solidification room temperature by 60 ± 5 DEG C be cooled to 50 DEG C~54 DEG C, simultaneously humidity by 99.6~100% cooling
It is 0.5~1 hour to the time used in 93%~95%；
Solidify described in step c indoor humidity as 93%~95% be down to 90%~92% used in the time be 0.5~1 hour；
Solidification room temperature described in step d is cooled to 45 DEG C by 50 DEG C~54 DEG C, humidity by 90%~92% is down to 80% simultaneously
The required time is 0.5~1 hour.
6. positive electrode plate of lead-acid battery curing process according to claim 1, which is characterized in that the drying stage packet
It is dry dry with second segment to include first segment, the specific steps are as follows:
E. first segment is dry: setting the solidification room temperature of drying stage as 45 ± 5 DEG C, humidity 20%, circulating fan turns
Speed is 100%, and does not have water atomization and steam atomization, and the curing room of drying stage preheats 1 hour under this condition；Preheating is completed
Afterwards, the anode plate for completing oxidation stage is placed in the curing room after the preheating, and dry 3 under the conditions of in the curing room
Hour, i.e. completion first segment is dry；
F. second segment is dry: after the completion of first segment is dry, solidify indoor temperature by 45 ± 5 DEG C be warming up to 65 ± 5 DEG C, humidity by
20% is down to 10%, and circulating fan rotating speed 100%, anode plate is dried 15 ± 1 hours under this condition, is after the completion of dry
Complete the drying stage of anode plate.
7. positive electrode plate of lead-acid battery curing process according to claim 6, which is characterized in that solidify described in step f
Room temperature as 45 ± 5 DEG C be warming up to 65 ± 5 DEG C, humidity as 20% be down to 10% used in the time be 0.5~1 hour.
8. described in any item positive electrode plate of lead-acid battery curing process according to claim 1~7, which is characterized in that described
Circulating fan maximum (top) speed is 2500r/min.
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