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Lead storage battery pole plate curing method

A technology for plate solidification and lead-acid batteries, applied in the direction of lead-acid battery electrodes, etc., can solve the problems of low production efficiency, long curing time, unsuitable for mass production, etc., and achieve the effect of preventing cracking and improving excessive water loss

Active Publication Date: 2022-05-27
天能电池集团马鞍山新能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When curing in this way, due to the blocking of the wind by the sack, only a small amount of circulating air participates in the curing time, which is not suitable for mass production, and the production efficiency is low.

Method used

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  • Lead storage battery pole plate curing method
  • Lead storage battery pole plate curing method
  • Lead storage battery pole plate curing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Place the smear and the 6-DZF-20 wet green plate on the curing rack after surface drying in sequence in a curing chamber with a relative humidity of 98-100% and a temperature of 38-40°C.

[0030] Cure and dry according to the procedure in the table below.

[0031] Table I:

[0032]

[0033] Carry out according to the first degree of the above table, and spray the emulsion mixture of silica with high-speed stirring (speed 1500 rev / min) into the chamber through the spray device during the spray mixture program in the second-stage remarks column and bring it to the surface of the electrode plate by circulating air , the injection volume of the mixture is calculated per cubic meter of the curing chamber, and the injection rate is 0.5L / min.

[0034] After curing and drying, take the two side pole plates on the same frame of the curing room, check the cracks by visual light transmission method in the middle pole plate, and conduct three horizontal free drop weight loss te...

Embodiment 2

[0038] Place the smear and the 6-DZF-20 wet green plate on the curing rack after surface drying in sequence in a curing chamber with a relative humidity of 98-100% and a temperature of 38-40°C.

[0039] Cure and dry according to the procedure in Table 3.

[0040] Table 3:

[0041]

[0042] Carry out the procedure according to the level of Table 3 above, and spray the silica emulsion mixture with high speed stirring (rotation speed 800 rpm) into the chamber through the spray device during the spray mixture procedure in the second-stage remarks column and bring it to the surface of the electrode plate through the circulating air , the injection volume of the mixed solution is calculated per cubic meter of the curing chamber, and the injection rate is 0.3L / min.

[0043] After curing and drying, take the two side pole plates on the same frame of the curing room, check the cracks by visual light transmission method in the middle pole plate, and conduct three horizontal free dro...

Embodiment 3

[0047] Put the smear and the 6-DZF-20 wet plate on the curing rack after surface drying into the curing chamber with relative humidity of 98 to 100% and temperature of 38 to 40 °C in sequence; .

[0048] Table 5:

[0049]

[0050] Carry out the procedure according to the level of Table 5 above, and spray the emulsion mixture of silica with high-speed stirring (speed 1000 rpm) into the chamber through the spray device during the procedure of spraying the mixture in the second-stage remarks column, and bring it to the surface of the electrode plate through the circulating air , the injection volume of the mixture is calculated per cubic meter of the curing chamber, and the injection rate is 0.4L / min.

[0051] After curing and drying, take the two side pole plates on the same frame of the curing room, check the cracks by visual light transmission method in the middle pole plate, and conduct three horizontal free drop weight loss tests from a height of 1 meter.

[0052] Table...

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Abstract

The invention discloses a lead storage battery electrode plate curing method, and relates to the technical field of lead storage battery production. The method comprises the following steps: spraying an emulsion mixed solution of silicon dioxide on the surface of the polar plate through circulating air in the second curing stage; the emulsion mixed solution is prepared by the following steps: weighing fumed silica, polyacrylamide and pure water for later use; pure water is put into a high-speed stirring and strong shearing nanometer material mixing all-in-one machine body; starting a vacuum high-speed stirring and strong-shearing nano material mixing all-in-one machine, starting a vacuum system to suck required fumed silica and polyacrylamide powder, and stirring at a high speed; after stirring is completed, the emulsion is subjected to positive and negative strong shearing in a mixing all-in-one machine, and the completely uniform emulsion mixed solution containing the silicon dioxide is prepared. A small amount of sheared silicon dioxide emulsion mixed liquid sprayed in the second stage is attached to the surface of the polar plate along with circulating air to form a protective layer, and the problem that the wet green polar plate loses water too fast under the action of the circulating air is solved.

Description

technical field [0001] The invention belongs to the technical field of lead-acid battery production, and in particular relates to a method for curing a lead-acid battery pole plate. Background technique [0002] In the manufacture of lead-acid batteries, plate curing is a special process in the battery production process. The quality of the curing effect determines the quality of the plate, the discharge capacity of the battery after assembly, the consistency of the battery capacity, and the cycle life. [0003] The solidification and drying of the electrode plate of the battery in the production enterprise is generally carried out in three stages. The first stage is the high humidity stage. The purpose of the high humidity standing at this stage is to gradually make the lead sulfate produced in the process of mixing paste to the liquid with crystal water. Basic lead sulfate 3PbO·PbSO 4 ·H 2 O and 4PbO·PbSO 4 The second stage is the lead paste dehydration free lead oxidat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/21
CPCH01M4/21Y02E60/10
Inventor 孙权林超赵兴强张传虎
Owner 天能电池集团马鞍山新能源科技有限公司