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AGM (absorptive glass mat) switch on-off storage battery positive plate curing process

A curing process and positive plate technology, which is applied to the electrodes of lead-acid batteries, can solve the problems of low curing temperature, affecting the performance stability of the plate, and high porosity, so as to improve production efficiency, shorten the curing cycle, improve cycle life and The effect of capacity

Active Publication Date: 2015-11-18
CAMEL GRP XIANGYANG BATTERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Using the high-temperature staged curing process of the invention to cure the pole plate, the active material crystal particle size in the obtained pole plate is uniform, the porosity is high, and the ratio of α-PbO and β-PbO is close to 1:1.25, but the process is in The curing temperature is low under low humidity, which affects the stability of the performance of the plate

Method used

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  • AGM (absorptive glass mat) switch on-off storage battery positive plate curing process
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  • AGM (absorptive glass mat) switch on-off storage battery positive plate curing process

Examples

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Effect test

Embodiment 1

[0026] A kind of AGM start-stop storage battery positive plate solidification process, comprises the following steps:

[0027] In the stage of medium temperature and high humidity, the relative humidity in this stage is 96-100%, and the temperature gradually rises from 45°C to 62°C within 50 minutes, then keeps at 62°C for 3 hours, and the temperature slowly drops from 62°C to 50°C within 3 hours;

[0028] In the stage of low temperature and high humidity, the temperature in this stage is 50°C, and after the relative humidity is kept at 96-100% for 3 hours, it will slowly drop from 96-100% to 90-92% within 3 hours, and then slowly rise to 96-100% within 3 hours , the relative humidity will slowly drop from 96-100% to 90-92% within 8 hours;

[0029] In the medium temperature dehumidification stage, the temperature in this stage is 60°C, and the relative humidity slowly decreases from 90-92% to 80% within 6 hours, and then slowly decreases to 50% within 5 hours;

[0030] In the...

Embodiment 2

[0035] A kind of AGM start-stop storage battery positive plate solidification process, comprises the following steps:

[0036] In the stage of medium temperature and high humidity, the relative humidity in this stage is 96-100%, the temperature is maintained at 50-55°C for 5 hours, and then the temperature is slowly increased from 55°C to 65°C within 2 hours;

[0037] In the low temperature and high humidity stage, the temperature in this stage is 55°C, and after the relative humidity is kept at 96-100% for 3 hours, it will slowly drop from 96-100% to 90-92% within 11 hours;

[0038] In the medium temperature dehumidification stage, the temperature in this stage is 60°C, and the relative humidity slowly drops from 90-92% to 80% within 8 hours, and then slowly drops to 20% within 5 hours;

[0039] In the high-temperature drying stage, the relative humidity is 5-15%, the temperature rises slowly from 60°C to 80°C within 2 hours, and then keeps at 80°C for 6 hours;

[0040] Afte...

Embodiment 3

[0044] A kind of AGM start-stop storage battery positive plate solidification process, comprises the following steps:

[0045] In the medium temperature and high humidity stage, the relative humidity is 96-100%, the temperature is kept at 45-50°C for 2 hours, and then the temperature is slowly raised to 65°C within 3 hours;

[0046] In the low temperature and high humidity stage, the temperature in this stage is 52°C, and after the relative humidity is kept at 96-100% for 5 hours, it will slowly drop from 96-100% to 90-92% within 15 hours;

[0047] In the medium temperature dehumidification stage, the temperature in this stage is 65°C, and the relative humidity slowly drops from 90-92% to 80% within 7 hours, and then slowly drops to 15% within 8 hours;

[0048] In the high-temperature drying stage, the relative humidity is 5-15%, the temperature rises slowly from 65°C to 85°C within 5 hours, and then keeps at 85°C for 10 hours;

[0049] After the high-temperature drying stage...

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Abstract

The invention discloses an AGM (absorptive glass mat) switch on-off storage battery positive plate curing process. The process comprises a medium-temperature high humidity stage, a low-temperature high humidity stage, a medium-temperature humidity exhaust stage and a high-temperature drying stage. With the curing process, excellent bonding strength can be obtained between positive plate lead plaster and between lead plaster and the surface of the grid, 4BS crystals with controllable number and sizes can be formed, the size of the formed 4BS crystals is within 10-25 mu m, and the cycle life of the battery is prolonged; in addition, the total time of the curing process is controlled within 40-55h, so that the curing period is shortened, and the production efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of lead storage batteries, and in particular relates to a curing process for positive plates of AGM start-stop storage batteries. Background technique [0002] AGM battery is the most widely used storage battery. It is a VRLA battery with glass fiber separator (AGM). [0003] The AGM battery used for micro-mixing idling start-stop is the current development trend of the start-stop battery. The AGM start-stop battery requires a longer cycle life. The positive electrode paste is the key to the cycle life. It is generally believed that the positive electrode paste is curing The formation of 4BS in the process can enhance the bonding performance of the lead paste, delay the muddying of the positive electrode active material, and improve the cycle life of the battery. However, the test data shows that the size of 4BS crystals formed in the positive electrode paste is too large, too many, and the particle size d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/16H01M4/14H01M4/22
CPCH01M4/14H01M4/16H01M4/22Y02E60/10
Inventor 刘小峰孟刚徐建刚王天成陈顺宏夏诗忠
Owner CAMEL GRP XIANGYANG BATTERY
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