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Positive plate for lead-acid battery and preparation method thereof

A technology of lead-acid battery and positive plate, applied in the direction of lead-acid battery electrodes, electrode carriers/collectors, etc., can solve the problems of poor overall comprehensive performance, frequent daily maintenance, short service life, etc., and achieve deep charge and discharge cycles and discharge stability, long cycle charge and discharge life, and long service life

Inactive Publication Date: 2017-02-22
萍乡市天东电器科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the electrode plate has good charge and discharge stability, the overall comprehensive performance is not good, such as low specific energy, short service life and frequent daily maintenance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] The positive plate used in the lead-acid battery in this embodiment includes an alloy grid and lead-acid layers covering both sides of the alloy grid, the thickness of the alloy grid is 2.4mm, and the thickness of the lead-acid layer is 0.15mm. The alloy grid is prepared from the following components in weight percentage: 0.1% calcium, 0.8% tin, 0.03% aluminum, and the rest is lead. The lead-acid layer is mainly prepared from the following components in parts by weight: 1000±1.0 parts of lead powder, 105±0.5 parts of water, 1.4g / cm 3 96.00±0.2 parts of sulfuric acid.

[0041] The preparation method of the above-mentioned positive plate specifically comprises the following steps:

[0042] (1) Alloy grid casting: carried out in the automatic grid casting machine, put the lead ingot into the lead melting pot of the automatic grid casting machine, heat up to 450°C to melt the lead ingot, and keep the liquid color of the lead liquid as silvery white, Described lead ingot c...

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Abstract

The inventionprovides a positive plate used for a lead-acid storage battery. The positive plate comprises an alloy plate grid and lead-acid layers coating two surfaces of the alloy plate grid, wherein the alloy plate grid is prepared from the following components in percentage by weight: 0.05-0.2% of calcium, 0.6-1.0% of tin, 0.01-0.05% of aluminum and the balance of lead;each lead-acid layer is mainly prepared from the following components in parts by weight: 950-1050 parts of lead powder, 100-110 parts of water and 90-100 parts of sulfuric acid in the specification of 1.4g / cm3. The lead-acid storage battery with the positive platehas the advantages of good heavy-current discharge stability, highlow-temperature start capacity, excellentanti-corrosion performance, longcirculating charge and discharge life and excellent comprehensive performance.

Description

technical field [0001] The invention relates to the technical field of lead-acid batteries, in particular to a positive plate for lead-acid batteries and a preparation method for the positive plate for lead-acid batteries. Background technique [0002] Lead-acid battery (VRLA) is a battery whose electrodes are mainly made of lead and its oxides, and the electrolyte is sulfuric acid solution. In the charged state of the lead-acid battery, the main component of the positive electrode is lead dioxide, and the main component of the negative electrode is lead; in the discharged state, the main component of the positive and negative electrodes is lead sulfate. [0003] For lead-acid batteries, the electrode plate is one of the most important components, and its quality is directly related to the quality and service life of the entire lead-acid battery. The electrode plate is mainly composed of an alloy grid and an active coating coated on the alloy grid, wherein the alloy grid is...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M4/14H01M4/68H01M4/73H01M4/16
CPCH01M4/14H01M4/16H01M4/20H01M4/21H01M4/68H01M4/73Y02E60/10
Inventor 张天东张欣泉
Owner 萍乡市天东电器科技有限公司
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