High-temperature high-humidity electrode plate curing process

A plate solidification, high temperature and high humidity technology, applied in the direction of lead-acid battery electrodes, etc., can solve the problems of short battery cycle life, long production time, insufficient oxygen supply, etc., to improve the overall performance of the battery, improve the quality of the plate, The effect of shortening the production cycle

Inactive Publication Date: 2013-01-02
HUNAN FENGRI ELECTRIC GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Medium-temperature curing has the disadvantages of long production time, low adhesion of lead paste and low bonding strength with the grid, insufficient conversion of 3BS (tribasic lead sulfate) in lead paste to 4BS (tetrabasic lead sulfate), and battery cycle Short service life; high-temperature pressure curing requires pressure vessels and pressurized equipment, which requires large investment and high cost, and the oxygen supply is insufficient during the curing process, and there are still disadvantages such as deformation and cracking of the plates

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Taking the solidification of a 50Ah raw plate as an example, the specific implementation method of the present invention will be further described below.

[0015] Equipment: A curing room with automatic temperature and humidity control is adopted.

[0016] 1. Hang the paste-coated 50Ah raw plates on the drying rack, and the distance between each green plate is 1mm. Then push the drying rack full of green plates into the curing chamber. Control the temperature of the curing room at 180°C, the relative humidity is 20-30%, and carry out surface drying for about 6 minutes, so that the water content of the raw plate after drying is 8% (weight percentage); 2. Put the curing room The temperature is controlled at 90-95°C, the relative humidity is kept at 100%, and the raw electrode plate is cured for 24 hours.

[0017] After completing the above curing treatment, the test shows that the 4BS content of the plate is 86%.

[0018] Use the above cured plates to assemble a 2V500A...

Embodiment 2

[0019] Embodiment 2: The specific implementation method of the present invention will be further described by taking the curing of a 25Ah raw plate as an example.

[0020] Equipment: A curing room with automatic temperature and humidity control is adopted.

[0021] 1. Hang the paste-coated 25Ah raw plates on the drying rack, and the distance between each green plate is 1mm. Then push the drying rack full of green plates into the curing chamber. Control the temperature of the curing room at 150°C, the relative humidity is 20-30%, and dry the surface for about 4 minutes, so that the water content of the raw plate after drying is 8% (weight percentage); 2. Put the curing room The temperature is controlled at 90-95°C, the relative humidity is kept at 100%, and the raw electrode plate is cured for 24 hours.

[0022] After completing the above curing treatment, the test shows that the 4BS content of the plate is 88%.

[0023] Use the above cured plates to assemble a 2V500Ah batte...

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PUM

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Abstract

The inventive high-temperature high-humidity electrode plate curing process includes (1) sending green electrode plates into a curing chamber, and performing surface drying at 150-180 DEG C and relative humidity of 20-30%, to reach moisture content of 7.5-8.5 wt% in dried green electrode plate; and (2) regulating curing temperature to 90-95 DEG C and relative humidity of 100% in the curing chamber, and curing the green electrode plate for 24 h. The invention has the advantages of short curing time, firm bonding between lead paste and plate grid, no deformation and cracking, high production efficiency, high electrode plate quality, and substantially improved battery comprehensive performances.

Description

technical field [0001] The invention relates to the field of lead-acid batteries, in particular to a valve-controlled sealed lead-acid battery plate curing process. Background technique [0002] The paste-type plate loses water under certain process conditions, and the plastic paste is shaped and condensed into a solid with good mechanical and chemical properties. This process is called curing. [0003] The curing of battery plates is an extremely important process in the manufacture of batteries. After the grid is filled with lead paste, only through the curing process can the particles of the lead paste be connected to each other to form a continuous and solid skeleton, which is tightly attached to the plate. on the fence. The solidification of the plate directly affects the electrical performance of the battery. The effect of the curing process on the quality of the plate is very important, and it is an important link in the battery production. It is related to the capa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/21
CPCY02E60/126Y02E60/10
Inventor 黎福根杨水根
Owner HUNAN FENGRI ELECTRIC GROUP
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