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Lead storage battery pole plate curing-drying process

A plate curing and drying process technology, applied in the direction of lead-acid battery electrodes, etc., can solve the problems of oxygen difficult to enter the plate, long curing time, inconsistent curing effect, etc., to avoid energy loss, improve efficiency, and shorten drying time Effect

Active Publication Date: 2018-10-26
浙江天能汽车电池有限公司
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a curing and drying process for lead-acid battery plates, which overcomes the problems of difficulty in entering the inside of the plates in the prior art, long curing time, inconsistent curing effects, etc.

Method used

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  • Lead storage battery pole plate curing-drying process
  • Lead storage battery pole plate curing-drying process
  • Lead storage battery pole plate curing-drying process

Examples

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Embodiment 1

[0044] Taking the 6-QW-80 battery as an example, the curing and drying process of the lead battery plate includes:

[0045] 1. Prepare the mixed solution for humidifying water mist required for the operation of the curing room. The concentration of hydrogen peroxide in the mixed solution is about 75g / L.

[0046] 2. During the period when the polar plate enters the curing room, the temperature in the curing room is kept at 55°C, and the humidity is kept at 98Rh%. After entering the curing room, close the hatch;

[0047] 3. In the first stage of curing, turn on the temperature adjustment system, turn on the negative pressure fan and pump the low pressure to a pressure of 0.05Mpa for 15 to 30 minutes, keep the temperature for 15 minutes, keep the temperature at 55°C, and the humidity at 80Rh%;

[0048]4. In the second stage of curing, turn on the ozone manufacturing equipment, and introduce ozone-containing air with an ozone concentration of 15mg / L into the kiln until the pressur...

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Abstract

The invention discloses a lead storage battery pole plate curing-drying process, and belongs to the technical field of the storage battery preparation. The curing-drying process comprises two stages of oxidation and drying; the oxidation stage orderly comprises reducing pressure and reducing humidity, rising pressure and rising temperature, reducing temperature and reducing humidity and rising pressure, reducing temperature and reducing humidity and reducing the pressure and like steps; the drying stage comprises reducing humidity and reducing pressure, reducing temperature and reducing humidity and reducing the pressure. Through the process disclosed by the invention, the curing is performed under the high-pressure condition, the circulating gas and liquid are high-concentration oxidant,and can penetrate into the pole plate to promote lead plaster internal free lead oxidation reaction and promote the oxidation between the lead plaster and the grid; the high-concentration oxygen catalysis and high-temperature and high-pressure environment improve the reaction rate, improve the oxidation quality and shorten the curing time; the vacuum fast drying is performed to reduce the moistureboiling temperature and promote the moisture evaporation. By adopting the process disclosed by the invention, the curing-drying time can be controlled within 24h, the efficiency is improved by twiceand more, the whole curing-drying process is operated in a closed way and energy-saving and less in pollution gas discharge rate.

Description

technical field [0001] The invention relates to the technical field of storage battery preparation, in particular to a solidification and drying process for lead storage battery pole plates. Background technique [0002] In the manufacturing process of lead-acid batteries, the curing of the plates is one of the main cores. After the grids are 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, and tightly attached to the plates. on the fence. The solidification of the plate directly affects the performance index and service life of the battery. At present, the outstanding problems of the plate are poor plate strength and poor consistency of plate indicators. [0003] Plate curing is divided into two stages of oxidation and drying. The oxidation process is mainly completed: (1) Oxidation of free lead to increase the capacity of active materials; (2) Oxidation of lead ...

Claims

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Application Information

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IPC IPC(8): H01M4/21
CPCH01M4/21Y02E60/10
Inventor 程艳青熊正林方明学李常飞陆辉
Owner 浙江天能汽车电池有限公司
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