A method for rapid curing of lead acid power storage battery plates

Abstract

The application discloses a kind of lead-acid power storage battery plate rapid curing method, steps are as follows: enter board: time ≤3h;Pass steam: steam heating and humidification is passed to curing chamber, above 80 ℃ Time is controlled at 50min~80min;Curing: control humidity ≥75%, temperature 50 ℃~60 ℃;Circulating air pressure 3mbar~6mbar, time 4.5h~5h;Dry conversion: control humidity 35%~85%, temperature 65~75 ℃;Circulating air pressure 5mbar~8mbar, time 55~65min;Dry: control humidity 0~35%, temperature 105 ℃~110 ℃;Circulating air pressure 5mbar~8mbar, time 45min~60min.The application controls circulating air pressure oxygen supplement after steam heating and humidification, controls moisture discharge, accelerates the oxidation speed of plate free lead, greatly shortens the time of curing stage, and improves production efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of lead-acid storage batteries, in particular to a rapid curing method for lead-acid power storage battery plates. BACKGROUND

[0002] Plate curing is a key process in the production of storage batteries, including the following reaction processes: recrystallization of active material to form a three-base lead sulfate (3BS) or four-base lead sulfate (4BS) network structure, oxidation of the grid surface and close contact with the active material, reduction of free lead content in the active material after oxidation, and water loss and drying of the active material. The free lead oxidation reduction stage is particularly important and depends on the temperature and the amount and method of oxygen supplementation.

[0003] The conditions during plate curing have a significant impact on each reaction process, thereby affecting the final battery performance. Therefore, the existing technology has strict requirements for the conditions of the plate curing process, and the curing process usually takes more than 60 hours, which seriously restricts the production efficiency.

[0004] Currently, there have been many studies on shortening the plate curing time, but most of the shortened curing time is still more than ten to twenty hours. Patent CN107342396B discloses a rapid curing process for storage battery plates, which can complete the curing and drying of the plates within 6-10 hours, greatly improving the production efficiency of the curing and drying of the green plates. However, it is only applicable to the rapid curing process of high-temperature 4BS paste and is only suitable for automotive starting batteries or VRLA batteries. It is not suitable for power battery plates that cannot produce 4BS and require medium-low temperature curing. At present, the curing of power battery plates still cannot be effectively shortened, and the production efficiency cannot be improved while ensuring the performance of the plates. SUMMARY

[0005] The present application is to overcome the above-mentioned problems existing in the curing process of the lead-acid power storage battery plates of the prior art, and to provide a rapid curing method for lead-acid power storage battery plates. By controlling the circulation of wind pressure to supplement oxygen after steam heating and humidification, the amount of moisture emission is controlled, the oxidation speed of the free lead of the plate is accelerated, the time of the curing stage is greatly shortened, and the production efficiency is improved.

[0006] In order to achieve the above-mentioned purpose, the present application adopts the following technical scheme:

[0007] A rapid curing method for lead-acid power storage battery plates, comprising the following steps:

[0008] (1) Plate feeding stage: feeding the plates to be cured into the curing chamber, time ≤ 3h;

[0009] (2) Steam phase: steam of 100℃-120℃ is supplied to the curing chamber to heat and humidify, so that the humidity reaches 100% and the temperature reaches 80℃-100℃, and the time above 80℃ is controlled to be 50min-80min;

[0010] (3) Curing phase: the relative humidity is controlled to be ≥75% and the temperature is controlled to be 50℃-60℃; fresh air is supplied, the circulating fan is started, the circulating air pressure is controlled to be 3mbar-6mbar, and the time is controlled to be 4.5h-5h;

[0011] (4) Drying and converting phase: the relative humidity is controlled to be 35%-85% and the temperature is controlled to be 65℃-75℃; fresh air is supplied, the circulating fan is started, the circulating air pressure is controlled to be 5mbar-8mbar, and the time is controlled to be 55min-65min;

[0012] (5) Drying phase: the relative humidity is controlled to be 0%-35% and the temperature is controlled to be 105℃-110℃; fresh air is supplied, the circulating fan is started, the circulating air pressure is controlled to be 5mbar-8mbar, and the time is controlled to be 45min-60min.

[0013] In the traditional curing process of the plate, the curing phase is generally humidified by steam and atomized water, the plate is heated and humidified by steam in the steam phase of the present application, only the moisture discharge amount is controlled in the curing phase, no humidification is performed, the humidity range in the curing chamber is reasonably controlled, and oxygen is supplied through pressure circulation, the oxygen supply speed in the curing phase and the water loss speed in the drying phase are controlled through air pressure, the oxidation speed of the free lead of the plate is accelerated, the curing time is greatly shortened, the overall curing time can be shortened from more than 60 hours to 8 hours, the circulation performance of the plate is ensured, and the production efficiency is greatly improved.

[0014] Since high-temperature curing (above 80℃) can produce 4BS, uneven 4BS affects the capacity and battery consistency, and power batteries cannot have 4BS. Therefore, the present application adopts a low-temperature curing method, the temperature in the curing phase is not higher than 80℃, and 4BS is not produced in the curing process, which is suitable for the rapid curing of the plates of lead-acid power storage batteries.

[0015] As preferred, the lead paste formula of the plate to be cured includes, in parts by weight: lead powder 70-82 parts, red lead 3-5 parts, water 6-7 parts, dilute sulfuric acid 6.5-8.0 parts, and fiber 0.06-0.07 parts. No 4BS is added in the lead paste formula of the present application, and no 4BS is produced in the curing process, which can be suitable for lead-acid power storage batteries.

[0016] As preferred, the plate in step (1) is a punched grid plate or a continuous casting grid plate with a thickness of less than or equal to 2.6mm.

[0017] As preferred, the polar plate is vertically or horizontally arranged on the stacking side in the curing chamber after being fed into the plate in step (1). The oxygen supplementing air flows smoothly and uniformly through the polar plate in the curing chamber, which is beneficial to the uniform curing of the polar plate and ensures that the cured polar plate has excellent performance.

[0018] As preferred, the polar plate is fed into the plate at 38-42℃ and relative humidity ≥98% in step (1).

[0019] As preferred, the polar plate is fed into the plate at 38-42℃ and relative humidity ≥98% in step (1).

[0020] As preferred, the steam quantity is 60%-100% of the maximum steam quantity in step (2).

[0021] As preferred, the humidity is controlled by controlling the opening degree of the exhaust air door of the curing chamber in steps (3)-(5).

[0022] As preferred, the opening degree of the exhaust air door is 5%-35% in step (3), 5%-25% in step (4) and 10%-100% in step (5).

[0023] As preferred, the fresh air is supplemented by controlling the opening degree of the fresh air inlet of the curing chamber in steps (3)-(5), and the opening degree of the fresh air inlet is 100%.

[0024] Therefore, the present application has the following beneficial effects:

[0025] (1) After steam heating and humidification, the oxygen is supplemented by controlling the circulating air pressure, and the moisture discharge is controlled, which accelerates the oxidation speed of the free lead of the polar plate, greatly shortens the curing time and shortens the whole curing time from 60 hours to 8 hours.

[0026] (2) The low-temperature curing method is adopted, 4BS is not added in the lead paste formula, and 4BS is not generated in the curing process, which is suitable for the rapid curing of the power battery polar plate. DETAILED DESCRIPTION

[0027] The present application will be further described in combination with the specific embodiments.

[0028] In the present application, all the equipment and raw materials can be purchased from the market or commonly used in the industry, and the methods in the following examples are conventional methods in the field unless otherwise specified.

[0029] General example:

[0030] A rapid curing method of lead-acid power storage battery polar plate includes the following steps:

[0031] (1) The stage of entering the plate: the plate to be cured is entered into the curing chamber, and the time is less than or equal to 3 hours;

[0032] (2) The stage of passing steam: 100-120 DEG C steam is passed into the curing chamber to heat and humidify, so that the humidity reaches 100%, and the temperature reaches 80-100 DEG C, and the time above 80 DEG C is controlled to be 50-80 minutes;

[0033] (3) The curing stage: the relative humidity is controlled to be greater than or equal to 75%, and the temperature is 50-60 DEG C; fresh air is supplemented, the circulating fan is turned on, the circulating air pressure is 3-6 mbar, and the time is 4.5-5 hours;

[0034] (4) The drying conversion stage: the relative humidity is controlled to be 35-85%, and the temperature is 65-75 DEG C; fresh air is supplemented, the circulating fan is turned on, the circulating air pressure is 5-8 mbar, and the time is 55-65 minutes;

[0035] (5) The drying stage: the relative humidity is controlled to be 0-35%, and the temperature is 105-110 DEG C; fresh air is supplemented, the circulating fan is turned on, the circulating air pressure is 5-8 mbar, and the time is 45-60 minutes.

[0036] As a specific embodiment, the lead paste formula of the plate to be cured includes, in parts by weight: lead powder 70-82 parts, red lead 3-5 parts, water 6-7 parts, dilute sulfuric acid 6.5-8.0 parts, and fiber 0.06-0.07 parts; preferably further including solid additives 4-5 parts. The lead paste formula of the application does not add 4BS, and the curing process does not produce 4BS, and can be suitable for lead-acid power storage batteries.

[0037] As a specific embodiment, the plate in step (1) is a punched grid plate or a continuous casting plate with a thickness of less than or equal to 2.6 mm.

[0038] As a specific embodiment, after the plate is entered in step (1), the plate is placed vertically or vertically on the stacking side on the curing rack in the curing chamber. The plate arrangement mode of the stacking side vertically or vertically can make the oxygen supplementing air flow smoothly and uniformly through the plate, which is beneficial to the uniform curing of the plate and ensures that the cured plate has excellent performance.

[0039] As a specific embodiment, the curing chamber in step (1) uses the curing chamber in the patent CN202210347857.5, and the curing rack in the curing chamber uses the curing rack in the patent CN202220374695.X.

[0040] As a specific embodiment, the plate is entered in step (1) under the condition of 38-42 DEG C and a relative humidity greater than or equal to 98%.

[0041] As a specific embodiment, the steam is introduced in step (1) at 100℃-120℃, and the amount of steam is less than 15% of the total amount of steam.

[0042] As a specific embodiment, the amount of steam introduced in step (2) is 60%-100% of the total amount of steam.

[0043] As a specific embodiment, the humidity in steps (3)-(5) is controlled by controlling the opening degree of the fresh air supplementing port.

[0044] As a specific embodiment, the opening degree of the fresh air supplementing port in steps (3)-(5) is 100%.

[0045] As a specific embodiment, the humidity in steps (3)-(5) is controlled by controlling the opening degree of the fresh air supplementing port.

[0046] Example 1:

[0047] A method for rapidly curing lead-acid power storage battery plates, comprising the following steps:

[0048] (1) Plate feeding stage: under the conditions of temperature 40℃ and humidity 100%, the plates to be cured are fed into the curing chamber, and the feeding time is 1h; the plates to be cured are punched grid plates with a thickness of 2.3mm, and the plates are stacked vertically after being fed into the curing chamber; the lead paste formula of the plates to be cured includes, by weight: lead powder 80 parts, red lead 4 parts, water 6 parts, dilute sulfuric acid 7 parts, fiber 0.06 parts, and graphite 4 parts;

[0049] (2) Steam introduction stage: 100℃ steam is introduced into the plates in the curing chamber to heat and humidify, so that the humidity reaches 100% and the temperature reaches 80℃-100℃, and the time above 80℃ is controlled to be 60min;

[0050] (3) Curing stage: the humidity is controlled to be greater than or equal to 75% and the temperature is 55℃ by controlling the opening degree of the exhaust air damper to be 5%-35%; the opening degree of the fresh air supplementing port is 100%, the circulating fan is turned on, the circulating air pressure is 5mbar, and the time is 5h;

[0051] (4) Drying and conversion stage: the humidity is controlled to be 35%-85% and the temperature is 70℃ by controlling the opening degree of the exhaust air damper to be 5-25%; the opening degree of the fresh air supplementing port is 100%, the circulating fan is turned on, the circulating air pressure is 7mbar, and the time is 60min;

[0052] (5) Drying stage: through the exhaust air door opening 10% ~ 100%, control humidity 0% ~ 35%, temperature 110℃; fresh air opening 100%, start circulating fan, circulating air pressure 7mbar, time 45min.

[0053] Example 2:

[0054] A lead-acid power storage battery plate rapid curing method, comprising the following steps:

[0055] (1) Stage of entering the plate: under the condition of temperature 38℃ and humidity 100%, the plate to be cured is entered into the curing chamber, and the entering time is 1h; the plate to be cured is punched grid plate with thickness of 2.3mm, and the plate is vertically placed in the curing chamber after being entered; the lead paste formula of the plate to be cured includes, by weight: lead powder 80 parts, red lead 4 parts, water 6 parts, dilute sulfuric acid 7 parts, fiber 0.06 parts, and graphite 4 parts;

[0056] (2) Steam passing stage: 100℃ steam is passed to the plate in the curing chamber for heating and humidifying, so that the humidity reaches 100% and the temperature reaches 80℃ ~ 100℃, and the time above 80℃ is controlled to be 55min;

[0057] (3) Curing stage: through the exhaust air door opening 5% ~ 35%, control humidity ≥75%, temperature 60℃; fresh air opening 100%, start circulating fan, circulating air pressure 3mbar, time 5h;

[0058] (4) Drying conversion stage: through the exhaust air door opening 5% ~ 25%, control humidity 35 ~ 85%, temperature 75℃; fresh air opening 100%, start circulating fan, circulating air pressure 5mbar, time 65min;

[0059] (5) Drying stage: through the exhaust air door opening 10% ~ 100%, control humidity 0% ~ 35%, temperature 105℃; fresh air opening 100%, start circulating fan, circulating air pressure 5mbar, time 60min.

[0060] Example 3:

[0061] A lead-acid power storage battery plate rapid curing method, comprising the following steps:

[0062] (1) Stage of entering the plate: under the condition of temperature 42℃ and humidity 100%, the plate to be cured is entered into the curing chamber, and the entering time is 1h; the plate to be cured is punched grid plate with thickness of 2.3mm, and the plate is vertically placed in the curing chamber after being entered; the lead paste formula of the plate to be cured includes, by weight: lead powder 80 parts, red lead 4 parts, water 6 parts, dilute sulfuric acid 7 parts, fiber 0.06 parts, and graphite 4 parts;

[0063] (2) Steam phase: 100℃ steam is supplied to the plates in the curing chamber to humidify and heat, so that the humidity reaches 100% and the temperature reaches 80-100℃, and the time above 80℃ is controlled to be 80min;

[0064] (3) Curing phase: the humidity is controlled to be ≥75% and the temperature is 50℃ by opening the exhaust air damper to 5-35%, the fresh air inlet is opened to 100%, the circulating fan is started, the circulating air pressure is 6mbar, and the time is 4.5h;

[0065] (4) Drying and converting phase: the humidity is controlled to be 35-85% and the temperature is 65℃ by opening the exhaust air damper to 5-25%, the fresh air inlet is opened to 100%, the circulating fan is started, the circulating air pressure is 8mbar, and the time is 55min;

[0066] (5) Drying phase: the humidity is controlled to be 0-35% and the temperature is 105℃ by opening the exhaust air damper to 10-100%, the fresh air inlet is opened to 100%, the circulating fan is started, the circulating air pressure is 8mbar, and the time is 45min.

[0067] Example 4:

[0068] A method for rapidly curing lead-acid power storage battery plates, comprising the following steps:

[0069] (1) Plate feeding phase: the plates to be cured are fed into the curing chamber under the conditions of a temperature of 40℃ and a humidity of 100%, and the feeding time is 1h; the plates to be cured are punched grid plates with a thickness of 2.3mm, and the plates are vertically stacked in the curing chamber after being fed; the lead paste formula of the plates to be cured comprises, by weight: lead powder 80 parts, red lead 4 parts, water 6 parts, dilute sulfuric acid 7 parts, fiber 0.06 parts, and graphite 4 parts;

[0070] (2) Steam phase: 100℃ steam is supplied to the plates in the curing chamber to humidify and heat, so that the humidity reaches 100% and the temperature reaches 80-100℃, and the time above 80℃ is controlled to be 60min;

[0071] (3) Curing phase: the humidity is controlled to be ≥75% and the temperature is 55℃ by opening the exhaust air damper to 5-35%, the fresh air inlet is opened to 100%, the circulating fan is started, the circulating air pressure is 4mbar, and the time is 5h;

[0072] (4) Drying and converting phase: the humidity is controlled to be 35-85% and the temperature is 65℃ by opening the exhaust air damper to 5-25%, the fresh air inlet is opened to 100%, the circulating fan is started, the circulating air pressure is 6mbar, and the time is 60min;

[0073] (5) Drying stage: through the exhaust air door opening 10% ~ 100%, control humidity 0% ~ 35%, temperature 108℃; fresh air opening 100%, start circulating fan, circulating air pressure 6mbar, time 50min.

[0074] Example 5:

[0075] A lead-acid power storage battery plate rapid curing method, comprising the following steps:

[0076] (1) Plate feeding stage: under the condition of temperature 40℃, humidity 100%, the plate to be cured is fed into the curing chamber, and the feeding time is 1h; the plate to be cured is a punched grid plate with a thickness of 2.3mm, and the plate is vertically placed in the curing chamber after feeding; the lead paste formula of the plate to be cured includes, by weight: lead powder 80 parts, red lead 4 parts, water 6 parts, dilute sulfuric acid 7 parts, fiber 0.06 parts, and graphite 4 parts;

[0077] (2) Steam passing stage: 100℃ steam is passed to the plate in the curing chamber for heating and humidifying, so that the humidity reaches 100% and the temperature reaches 80℃ ~ 100℃, and the time above 80℃ is controlled to be 60min;

[0078] (3) Curing stage: through the exhaust air door opening 5% ~ 35%, control humidity ≥75%, temperature 60℃; fresh air opening 100%, start circulating fan, circulating air pressure 5mbar, time 4.5h;

[0079] (4) Drying conversion stage: through the exhaust air door opening 5% ~ 25%, control humidity 35% ~ 85%, temperature 60℃; fresh air opening 100%, start circulating fan, circulating air pressure 5mbar, time 65min;

[0080] (5) Drying stage: through the exhaust air door opening 10 ~ 100%, control humidity 0% ~ 35%, temperature 110℃; fresh air opening 100%, start circulating fan, circulating air pressure 5mbar, time 60min.

[0081] Example 6:

[0082] A lead-acid power storage battery plate rapid curing method, comprising the following steps:

[0083] (1) Plate feeding stage: under the condition of temperature 40℃, humidity 100%, the plate to be cured is fed into the curing chamber, and the feeding time is 1h; the plate to be cured is a punched grid plate with a thickness of 2.3mm, and the plate is vertically placed in the curing chamber after feeding; the lead paste formula of the plate to be cured includes, by weight: lead powder 80 parts, red lead 4 parts, water 6 parts, dilute sulfuric acid 7 parts, fiber 0.06 parts, and graphite 4 parts;

[0084] (2) Steam phase: 100℃ steam is supplied to the plates in the curing chamber to humidify and heat, so that the humidity reaches 100% and the temperature reaches 80-100℃, and the time above 80℃ is controlled to be 50 min;

[0085] (3) Curing phase: the humidity is controlled to be ≥75% and the temperature is 55℃ by opening the exhaust air damper to 5-35%, the fresh air inlet is opened to 100%, the circulating fan is started, the circulating air pressure is 8 mbar, and the time is 5 h;

[0086] (4) Drying conversion phase: the humidity is controlled to be 35-85% and the temperature is 70℃ by opening the exhaust air damper to 5-25%, the fresh air inlet is opened to 100%, the circulating fan is started, the circulating air pressure is 8 mbar, and the time is 55 min;

[0087] (5) Drying phase: the humidity is controlled to be 0-35% and the temperature is 110℃ by opening the exhaust air damper to 10-100%, the fresh air inlet is opened to 100%, the circulating fan is started, the circulating air pressure is 8 mbar, and the time is 45 min.

[0088] Example 7:

[0089] A lead-acid power storage battery plate rapid curing method, comprising the following steps:

[0090] (1) Plate feeding phase: the plates to be cured are fed into the curing chamber under the conditions of a temperature of 40℃ and a humidity of 100%, and the feeding time is 1 h; the plates to be cured are punched grid plates with a thickness of 2.3 mm, and the plates are stacked vertically after being fed into the curing chamber; the lead paste formula of the plates to be cured includes, by weight: lead powder 80 parts, red lead 4 parts, water 6 parts, dilute sulfuric acid 7 parts, fiber 0.06 parts, and graphite 4 parts;

[0091] (2) Steam phase: 100℃ steam is supplied to the plates in the curing chamber to humidify and heat, so that the humidity reaches 100% and the temperature reaches 80-100℃, and the time above 80℃ is controlled to be 60 min;

[0092] (3) Curing phase: the humidity is controlled to be ≥75% and the temperature is 60℃ by opening the exhaust air damper to 5-35%, the fresh air inlet is opened to 100%, the circulating fan is started, the circulating air pressure is 3 mbar, and the time is 5 h;

[0093] (4) Drying conversion phase: the humidity is controlled to be 35-85% and the temperature is 75℃ by opening the exhaust air damper to 5-25%, the fresh air inlet is opened to 100%, the circulating fan is started, the circulating air pressure is 7 mbar, and the time is 60 min;

[0094] (5) drying stage: through the exhaust air door opening 10% ~ 100%, control humidity 0% ~ 35%, temperature 110℃; fresh air opening 100%, open circulating fan, circulating air pressure 7mbar, time 45min.

[0095] Example 8:

[0096] A lead-acid power storage battery plate rapid curing method, comprising the following steps:

[0097] (1) plate feeding stage: under the condition of temperature 40℃, humidity 100%, the plate to be cured is fed into the curing chamber, and the feeding time is 1h; the plate to be cured is a punched grid plate with a thickness of 2.3mm, and the plate is stacked vertically after feeding into the curing chamber; the lead paste formula of the plate to be cured includes, by weight: lead powder 80 parts, red lead 4 parts, water 6 parts, dilute sulfuric acid 7 parts, fiber 0.06 parts, and graphite 4 parts;

[0098] (2) steam passing stage: 100℃ steam is passed to the plate in the curing chamber for heating and humidifying, so that the humidity reaches 100% and the temperature reaches 80℃ ~ 100℃, and the time above 80℃ is controlled to be 60min;

[0099] (3) curing stage: through the exhaust air door opening 5% ~ 35%, control humidity ≥75%, temperature 50℃; fresh air opening 100%, open circulating fan, circulating air pressure 5mbar, time 5h;

[0100] (4) drying conversion stage: through the exhaust air door opening 5% ~ 25%, control humidity 35% ~ 85%, temperature 65℃; fresh air opening 100%, open circulating fan, circulating air pressure 7mbar, time 60min;

[0101] (5) drying stage: through the exhaust air door opening 10% ~ 100%, control humidity 0% ~ 35%, temperature 105℃; fresh air opening 100%, open circulating fan, circulating air pressure 7mbar, time 45min.

[0102] Comparative Example 1:

[0103] A lead-acid power storage battery plate curing method, comprising the following steps:

[0104] (1) plate feeding: temperature 40℃, humidity 100%, time 3 hours;

[0105] (2) first stage curing: temperature 48℃, humidity 100%, time 4 hours;

[0106] (3) second stage curing: 51℃, humidity 100%, time 3 hours;

[0107] (4) Third stage curing: 55°C, humidity 97%, time 3 hours;

[0108] (5) Fourth stage curing: 55°C, humidity 92%, time 3 hours;

[0109] (6) Fifth stage curing: 65°C, humidity 85%, time 30 hours;

[0110] (7) First drying stage: 70°C, humidity 0%, time 2 hours;

[0111] (8) Second drying stage: 75°C, humidity 0%, time 16 hours.

[0112] The performance of the dried plates in the above examples was tested, and the results are shown in Table 1.

[0113] Table 1: Results of plate performance tests.

[0114]

[0115] The rapid cycle life of the plates in Examples 1 and 2 and Comparative Example 1 (assembled into 12V20AH batteries and into a 48V20AH battery pack) was tested, and the method is shown in Table 2, and the test results are shown in Table 3.

[0116] Table 2: Method for testing the rapid cycle life of plates

[0117]

[0118] Table 3: Results of rapid cycle life tests of plates

[0119]

[0120] From the above results, it can be seen that, in the examples, the curing time can be significantly shortened using the method of the present application compared to the traditional curing method in Comparative Example 1, while the plate performance and rapid cycle life can be maintained at the same level as in Comparative Example 1. While ensuring the performance of the plates, the production efficiency can be greatly improved.

Claims

1. A method for rapid curing of lead-acid power battery plates, characterized in that, Includes the following steps: (1) Plate feeding stage: The plate to be cured is fed into the curing chamber for ≤3h; (2) Steam stage: Steam at 100℃~120℃ is introduced into the curing chamber for heating and humidification, so that the humidity reaches 100% and the temperature reaches 80℃~100℃. The time above 80℃ is controlled within 50min~80min. (3) Curing stage: control relative humidity ≥75%, temperature 50℃~60℃; replenish fresh air, turn on the circulating fan, circulating air pressure 3mba~6mbar, time 4.5h~5h; (4) Drying and conversion stage: control relative humidity at 35%~85% and temperature at 65℃~75℃; replenish fresh air, turn on the circulating fan, with circulating air pressure at 5 mbar~8 mbar and time at 55 min~65 min; (5) Drying stage: control relative humidity 0%~35%, temperature 105℃~110℃; replenish fresh air, turn on the circulating fan, circulating air pressure 5 mbar~8 mbar, time 45 min~60 min.

2. The rapid curing method for lead-acid power battery plates according to claim 1, characterized in that, The lead paste formula for the electrode plate to be cured, by weight, includes: 70-82 parts lead powder, 3-5 parts red lead, 6-7 parts water, 6.5-8.0 parts dilute sulfuric acid, and 0.06-0.07 parts fiber.

3. The rapid curing method for lead-acid power battery plates according to claim 1, characterized in that, The electrode plate mentioned in step (1) is a stamped grid plate gate plate or a continuous casting plate gate plate with a thickness of less than 2.6 mm.

4. The rapid curing method for lead-acid power battery plates according to claim 1, characterized in that, In step (1), after the plate enters the curing chamber, the plate is stacked on the curing rack, either sideways or upright.

5. The rapid curing method for lead-acid power battery plates according to claim 1, characterized in that, In step (1), the plate is fed into the container at a temperature of 38℃~42℃ and a relative humidity of ≥98%.

6. The rapid curing method for lead-acid power battery plates according to claim 1 or 2, characterized in that, In step (1), steam at 100℃~120℃ is used for humidification, and the amount of steam is ≤15% of the maximum amount of steam.

7. The rapid curing method for lead-acid power battery plates according to claim 1, characterized in that, In step (2), the amount of steam introduced is 60% to 100% of the maximum steam volume.

8. The rapid curing method for lead-acid power battery plates according to claim 1, characterized in that, In steps (3) to (5), humidity is controlled by adjusting the opening of the dehumidification damper in the curing chamber.

9. The rapid curing method for lead-acid power battery plates according to claim 8, characterized in that, In step (3), the opening degree of the exhaust damper is 5%~35%; in step (4), the opening degree of the exhaust damper is 5%~25%; and in step (5), the opening degree of the exhaust damper is 10%~100%.

10. The rapid curing method for lead-acid power battery plates according to claim 1, characterized in that, In steps (3) to (5), fresh air is supplied by controlling the opening of the fresh air supply port in the curing chamber, with the fresh air supply port opening being 100%.

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