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Processing technology of lead crystal battery positive pole plate and lead crystal battery

A battery positive electrode and processing technology, applied in the direction of lead-acid battery electrodes, battery electrodes, lead-acid batteries, etc., can solve the problems of insufficient size and low 4BS content

Active Publication Date: 2017-09-29
SHENZHEN CENT POWER TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the current problems of low 4BS content and insufficient length in the positive plate of the lead-acid battery, the invention provides a processing technology for the positive plate of the lead crystal battery

Method used

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  • Processing technology of lead crystal battery positive pole plate and lead crystal battery
  • Processing technology of lead crystal battery positive pole plate and lead crystal battery
  • Processing technology of lead crystal battery positive pole plate and lead crystal battery

Examples

Experimental program
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Effect test

Embodiment 1

[0051] A process for processing positive plates of lead crystal batteries, the formula of the lead paste is as follows:

[0052] Lead powder 1000kg; short fiber 1.0kg; 4BS seed crystal 10kg; sulfuric acid solution with a specific gravity of 1.4 100kg; pure water 125kg.

[0053] The processing technology of the positive plate includes the following steps:

[0054] 1) Dry mix all solid components including 4BS seed crystals in the lead paste formulation.

[0055] 2) Add pure water for wet mixing.

[0056] 3) Add acid for wet mixing, check the apparent density of the lead paste after mixing evenly, the apparent density of the lead paste in the obtained lead paste is 4.30±0.05g / cm 3 .

[0057] 4) Apply the reconciled lead paste on the surface of the cast grid to obtain a wet green plate, control the water content of the green plate to 10% to 12%, and then hang the green plate on the green plate to solidify and dry On the process pendant, the gap between the raw plates is contr...

Embodiment 2

[0066] A process for processing positive plates of lead crystal batteries, the formula of the lead paste is as follows:

[0067] Lead powder 1000kg; short fiber 1.0kg; 4BS seed crystal 20kg; sulfuric acid solution with a specific gravity of 1.4 100kg; pure water 125kg.

[0068] The processing technology of the positive plate includes the following steps:

[0069] 1) Dry mix all solid components including 4BS seed crystals in the lead paste formulation.

[0070] 2) Add pure water for wet mixing.

[0071] 3) Add acid for wet mixing, check the apparent density of the lead paste after mixing evenly, and obtain the lead paste, the apparent density of which is 4.30±0.05g / cm 3 .

[0072] 4) Coat the reconciled (that is, pass the apparent density of the lead paste) lead paste on the surface of the cast grid to obtain a wet green electrode plate, control the water content of the green electrode plate to 10% to 12%, and then place the green electrode The plate is hung on the hanger ...

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Abstract

The invention discloses a processing technology of a lead crystal battery positive pole plate. The processing technology comprises the following steps of adding 4BS seed crystal in an amount of 1-2wt% of positive lead paste formula during preparation of positive lead paste; coating the lead paste on a surface of a grid to generate a green plate, and employing the following curing and drying process that 1) humidity is 99-100%, a temperature is 65-75 DEG C, an air speed is 25-35%, and time is 4-8 hours; 2) the humidity is 90-98%, the temperature is 65-75 DEG C, the air speed is 35-55%, and time is 12-24 hours; 3) the temperature is 65-75 DEG C, the humidity is 30-50%, the air speed is 35-55%, and time is 12-24 hours; and 4) the temperature is 65-75 DEG C, humidification is stopped, the air speed is 70-100%, and the time is 12-24 hours. The content of the 4BS crystal of the positive pole plate prepared by the technology accounts for 40-60%, and the length of the 4BS crystal is 10-20 micrometers; and when the 4BS crystal is prepared to form the lead crystal battery, the capacity of the battery can be effectively improved, and the cycle lifetime of the battery can be effectively prolonged.

Description

technical field [0001] The invention belongs to the technical field of lead-acid storage batteries, and in particular relates to a process for processing a positive plate of a lead crystal battery and the lead crystal battery. Background technique [0002] The active material of the positive plate of valve-regulated sealed lead-acid battery is lead dioxide, which is transformed from 3BS, 4BS, and PbO formed after the plate is solidified, among which 3BS is a small crystal with a size of about 0.5 μm to 2 μm , 4BS is a coarse crystal with a size of about 2 μm to 90 μm, and the specific surface area of ​​these crystals varies greatly. [0003] After the plate is formed, the basic morphology of 3BS and 4BS crystals is still preserved. The active material converted from fine crystals has a large reaction area and a large capacity, but the softening speed is relatively fast. The active material after the conversion of the coarse crystal has a small reaction area and a small cap...

Claims

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Application Information

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IPC IPC(8): H01M4/22H01M4/23H01M4/14H01M4/36H01M4/56H01M4/62H01M10/12
CPCH01M4/14H01M4/22H01M4/23H01M4/364H01M4/56H01M4/62H01M10/121Y02E60/10Y02P70/50
Inventor 钟满强张华农
Owner SHENZHEN CENT POWER TECH
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