Rapid high-temperature curing drying process of lead-acid storage battery unformed electrode plate

A lead-acid battery, high-temperature curing technology, applied in the direction of lead-acid battery electrodes, etc., can solve the problems of short battery life, long curing time, low strength, etc., and achieve the effects of prolonging service life, slowing down the softening rate, and good adhesion

Active Publication Date: 2014-04-30
TIANNENG GRP JIANGSU TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The softening of the active material of the positive plate of the lead-acid battery and the poor combination of the lead paste and the grid surface will affect the service life of the battery. Although adding some additives can delay the softening of the active material and improve the binding degree of the lead paste and the grid surface, but The effects of these auxiliary measures are not obvious. To prolong and improve the cycle life of valve-regulated lead-acid batteries, the key is to improve the curing and drying effect of the raw plate during the battery manufacturing process, so as to ensure that the lead paste and the grid are tightly bonded after formation. , to slow down the softening of the positive plate active material
The existing curing and drying processes are usually divided into two types: one is curing and drying under high temperature and high pressure. After curing, the thick corrosion layer on the surface of the grid provides good adhesion for the lead plaster skeleton, so that the lead paste can be combined with the surface of the grid. compact, but the existing curing chamber system cannot meet the reaction conditions of high temperature

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0016] Example 1

[0017] Hang the green plate on the curing rack in the curing chamber with a spacing of 0.5mm, and perform the following operations in sequence:

[0018] (1) Place the green plate coated with lead paste in a curing chamber with a humidity of 95% and a temperature of 47 °C for 3 hours;

[0019] (2) Raise the temperature in the curing room to 83°C for 2 hours, cure the green plate for 15 hours at a temperature of 83°C and a humidity of 97%, and finally reduce the temperature in the curing room to 60°C and the humidity for 2 hours. to 90%;

[0020] (3) Keep the curing room temperature at 60°C, reduce the humidity to 80%, and cure the green plate for 5h;

[0021] (4) Raise the temperature in the curing room to 86°C and reduce the humidity to 10% for 2 hours;

[0022] (5) Keep the temperature in the curing room at 86°C, control the humidity at 0, and dry the green plate at high temperature for 10h.

[0023] The curing and drying process took 39 hours in total....

Example Embodiment

[0024] Example 2

[0025] Hang the green plate on the curing rack in the curing chamber with a spacing of 0.5mm, and perform the following operations in sequence:

[0026] (1) Put the green plate coated with lead paste in a curing room with a humidity of 99% and a temperature of 50 °C for 3 hours;

[0027] (2) Raise the temperature in the curing room to 86°C for 2h, cure the green plate for 15h at a temperature of 86°C and a humidity of 99%, and finally reduce the temperature in the curing chamber to 65°C and the humidity for 2h. to 95%;

[0028] (3) Keep the curing room temperature at 65℃, reduce the humidity to 85%, and cure the green plate for 5h;

[0029] (4) Raise the temperature in the curing room to 88°C and reduce the humidity to 10% for 2 hours;

[0030] (5) Keep the temperature in the curing room at 88°C, control the humidity at 0, and dry the green plate at high temperature for 10h.

[0031] This process takes 39 hours to cure and dry. After curing, the amount o...

Example Embodiment

[0032] Example 3

[0033] Hang the green plate on the curing rack in the curing chamber with a spacing of 0.5mm, and perform the following operations in sequence:

[0034] (1) Put the green plate coated with lead paste in a curing room with a humidity of 99% and a temperature of 50 °C for 2 hours;

[0035](2) Raise the temperature in the curing room to 86°C for 2 hours, cure the green plate for 20 hours at a temperature of 86°C and a humidity of 99%, and finally reduce the temperature in the curing room to 65°C and the humidity for 2 hours. to 95%;

[0036] (3) Keep the curing room temperature at 65℃, reduce the humidity to 85%, and cure the green plate for 5h;

[0037] (4) Raise the temperature in the curing room to 88°C and reduce the humidity to 10% for 2 hours;

[0038] (5) Keep the temperature in the curing room at 88°C, control the humidity at 0, and dry the green plate at high temperature for 10h.

[0039] The curing and drying process took 43 hours in total. After ...

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PUM

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Abstract

The invention discloses a rapid high-temperature curing drying process of a lead-acid storage battery unformed electrode plate. The process comprises the following steps of curing the unformed electrode plate which is coated with lead plaste in a curing chamber with the humidity of 95 to 99 percent and the temperature of 47 to 50 DEG C for 3 to 5h; increasing the indoor temperature in the curing chamber to 83 to 86 DEG C within 2 to 4h, curing the unformed electrode plate for 15 to 20h under the condition that the indoor temperature is 83 to 86 DEG C and the humidity is 97 to 99 percent, and reducing the temperature inside the curing chamber to 60 to 65 DEG C, and reducing the humidity to 90 to 95 percent; maintaining the temperature in the curing chamber to 60 to 65 DEG C, reducing the humidity to 80 to 85 percent, and curing the unformed electrode plate for 5 to 7h; increasing the temperature in the curing chamber to 86 to 88 DEG C within 2 to 4h, and reducing the humidity to 0 to 10 percent; maintaining the temperature in the curing chamber to 86 to 88 DEG C, controlling the humidity to 0, and drying the unformed electrode plate for 10 to 12h under the high temperature. The process is short in curing drying time, the curing drying time is shortened for 20h compared with that in an existing process, not only can an existing curing drying device be utilized, but also the curing drying time can be shortened under the condition that the investment is not increased, the production efficiency is improved, and the service life of the storage battery is prolonged.

Description

technical field [0001] The invention relates to the field of lead-acid storage battery manufacturing, in particular to a rapid high-temperature curing and drying process for a raw plate of a lead-acid storage battery. Background technique [0002] With the widespread use of electric mopeds, electric vehicles, and portable electric tools in recent years, as well as the continuous construction of communication base stations and wind-solar hybrid power stations, valve-regulated sealed lead-acid batteries are characterized by their stable and reliable reversibility and safety, as well as their low cost. The price and high cost performance have been widely used. In order to meet the extensive needs of the market and customers, it is necessary to manufacture long-life valve-regulated sealed batteries to improve product quality. [0003] The softening of the active material of the positive plate of the lead-acid battery and the poor combination of the lead paste and the grid surf...

Claims

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Application Information

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IPC IPC(8): H01M4/21
CPCY02E60/126H01M4/21Y02E60/10
Inventor 张继胜方明学王杜友
Owner TIANNENG GRP JIANGSU TECH
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