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Lead storage battery pole plate curing method

A technology for plate solidification and lead-acid batteries, which is applied in the direction of lead-acid battery electrodes, lead-acid batteries, and lead-acid battery construction. It can solve the problems of poor plate stability, poor penetration, consistent capacity, and poor low-temperature discharge performance. problem, to achieve the effect of short production cycle, improved low-temperature discharge performance, and improved uniformity

Active Publication Date: 2020-02-21
TIANNENG BATTERY GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The gap between the layers of the horizontal hanging plate is uniform, and the circulating air is uniform during curing; the penetration between the longitudinal hanging plate circulating air is poor, and most of them pass through the top of the curing chamber, resulting in poor stability of the plate.
After charging and testing, the batteries assembled with plates made of vertical hanging plates have relatively poor capacity consistency and low-temperature discharge performance.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] 6-DZF-12 The wet plate is vertically hung and placed in the curing room with the curing room moisturizing program turned on. The parameters of the first stage are set to a relative humidity of 93%, a temperature of 50 °C, steam atomized water heating and humidification, and curing The time is 20 hours, and the circulating air is closed in this stage; the steam atomized water humidification is stopped in the second stage, the set temperature is 50°C, the relative humidity is gradually reduced to 70%, the circulating wind speed is 40%, and the circulating fan is set to be turned on for 3 minutes and turned off for 10 minutes , carry out this step for 8 hours; then turn off the circulating air, and treat with negative pressure for 5 minutes under the negative pressure value of -0.03Mpa; then set the temperature at 55°C, gradually reduce the relative humidity to 35%, and continue at the environment where the circulating air speed is 60%. Curing for 4 hours; three-stage dryin...

Embodiment 2

[0027] 6-DZF-12 Wet polar plates are vertically hung and placed in batches A and B respectively into the curing room with the curing room moisturizing program turned on. The parameters of the first stage of the plate of batch A are set at a relative humidity of 99% and a temperature of 80 ℃, steam atomized water heating and humidification, the time is 22h, and the circulating air is closed at this stage; the steam and atomized water humidification are stopped in the second stage, the set temperature is 65℃, the relative humidity is gradually reduced to 80%, and the circulating wind speed is 60% , The circulating fan is set to be turned on for 5 minutes and turned off for 20 minutes, and this step is carried out for 12 hours; then the circulating air is turned off, and the negative pressure is treated at -0.07Mpa for 10 minutes; then the temperature is set at 70°C, and the relative humidity is gradually reduced to 50%. 1. Continue to cure for 6 hours in an environment with a cir...

Embodiment 3

[0030] 6-DZF-20 Wet plates are hung vertically and put into the curing room which has opened the curing room moisturizing program. The parameters of the first stage are set to relative humidity of 97%, temperature of 65°C, steam atomized water heating and humidification, The time is 21 hours, and the circulating air is closed in this stage; the steam and atomized water humidification are stopped in the second stage, the set temperature is 60°C, the relative humidity is gradually reduced to 75%, the circulating air speed is 50%, and the circulating fan is set to open for 4 minutes and off 15min, carry out this step for 11h; then turn off the circulating air, and treat with negative pressure for 10min under the negative pressure value of -0.06Mpa; then set the temperature at 70°C, gradually reduce the relative humidity to 50%, and the circulating wind speed at 90% Continue curing for 6 hours; dry for 12 hours in the three-stage environment at a temperature of 80°C and relative hu...

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PUM

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Abstract

The invention discloses a lead storage battery pole plate curing method which comprises the following steps: (1) in a high-humidity stage, the relative humidity is 93-99%, the temperature is 50-80 DEGC, and the time is 20-22 hours; (2) the relative humidity is reduced to 70-80%; (3) negative pressure treatment is performed to enable water in a pole plate to escape to the surface of the pole plate; (4) the relative humidity is reduced and the air volume is increased to dehydrate and solidify the pole plate; and (5) the pole plate is dried. According to the lead storage battery pole plate curing method, the uniformity of circulating air is improved without changing an existing plate hanging mode, the consistency of the water content in the pole plate is ensured by adding negative pressure treatment, and the online capacity detection consistency and the low-temperature discharge performance of prepared batteries are obviously improved compared with those of the original process. The curing and drying cumulative time is 44-47h, and the production period is short.

Description

technical field [0001] The invention relates to the technical field of lead storage battery production, in particular to a method for solidifying lead storage battery pole plates. Background technique [0002] During the production process of the lead-acid battery plate, it needs to go through the curing process. [0003] The invention with the publication number CN102509777A discloses a curing and drying method suitable for lead-acid battery plates. The method includes passing the coated raw plates through three stages: rapid surface drying stage, normal temperature curing stage and plate drying stage Curing: The curing conditions in the rapid surface drying stage are: temperature 200°C-320°C, time 30s-40s, relative humidity below 20%; the curing conditions in the room temperature curing stage are: temperature 50°C-85°C, time 5h-10h , the relative humidity is 85%-99%; the curing conditions in the plate drying stage are: temperature 70°C-85°C, time 15h-17h, relative humidit...

Claims

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Application Information

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IPC IPC(8): H01M4/22H01M4/21H01M10/12
CPCH01M4/21H01M4/22H01M10/12Y02E60/10Y02P70/50
Inventor 李越南庄建周文渭方明学刘海凤刘克宇陈群宋锐王增君
Owner TIANNENG BATTERY GROUP