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Lead plaster formula of positive plate of lead storage battery

A lead-acid battery, positive plate technology, applied in lead-acid battery electrodes, battery electrodes, positive electrodes, etc., can solve the problems of large changes in the composition of the green plate, decrease in capacity, and great influence, and improve service life and cycle life. The effect of improving and improving the electrical conductivity

Active Publication Date: 2020-08-07
TIANNENG BATTERY GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, the addition of carbon materials has relative limitations. Carbon materials are easily oxidized during the charging and discharging process of the positive electrode. After dozens of cycles, the carbon almost disappears from the positive electrode, and the capacity appears to be stable again after a significant drop.
However, the production of relatively stable tetrabasic lead sulfate is greatly affected by the requirements of the process and equipment. Even under relatively stable process and equipment, the composition of the raw plate produced by a slight change in external conditions changes greatly.
Excessive generation of tetrabasic lead sulfate makes the plate hard and difficult to form, and the capacity of the plate is seriously insufficient and scrapped

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] For every 1000kg of lead powder, add 88kg of sulfuric acid with a specific gravity of 1.40g / ml, 115kg of pure water, 5kg of glass filaments with a length of 2-4mm, a diameter of 3-5μm, and a tin-plated thickness of 0.3-0.5μm, and analyze pure sulfuric acid 2 kg, and spare some pure water for adjustment, and the apparent specific gravity of the lead paste is controlled at 4.25±0.10g / ml.

Embodiment 2

[0026] For every 1000kg of lead powder, add 88kg of sulfuric acid with a specific gravity of 1.40g / ml, 115kg of pure water, 10kg of glass filaments with a length of 2-4mm, a diameter of 8-10μm, and a tin-plated thickness of 0.3-0.5μm, and 5kg of analytically pure sulfuric acid. , In addition, spare some adjusted pure water, and the apparent specific gravity of the lead paste is controlled at 4.25±0.10g / ml.

Embodiment 3

[0028] For every 1000kg of lead powder, add 90kg of sulfuric acid with a specific gravity of 1.40g / ml, 115kg of pure water, 8kg of glass filaments with a length of 2-4mm, a diameter of 5-7μm, and a tin-plated thickness of 0.4-0.6μm, and 3kg of analytically pure sulfuric acid , In addition, spare some adjusted pure water, and the apparent specific gravity of the lead paste is controlled at 4.25±0.10g / ml.

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PUM

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Abstract

The invention provides a lead plaster formula of a positive plate of a lead storage battery. The lead plaster formula comprises lead powder and an additive and is characterized in that the additive comprises tinned glass fibers and oxammonium sulfate, wherein the addition amount of the tinned glass fibers is 0.5%-1.0% of the weight of the lead powder, and the addition amount of the oxammonium sulfate is 0.2%-0.5% of the weight of the lead powder. The tinned glass fibers are added to replace fibers for a storage battery, so that the conductivity of the positive plate is improved; the oxammoniumsulfate is added to obtain large-particle lead sulfate, thereby improving lead sulfate crystallization refinement in positive electrode use, improving positive electrode lead paste softening and prolonging the actual service life of the battery.

Description

technical field [0001] The invention belongs to the technical field of lead storage battery production, and in particular relates to a formula of lead paste for a positive plate of a lead storage battery. Background technique [0002] G.Plante invented the lead-acid battery in 1859, and has experienced nearly 160 years of development. Lead-acid batteries have made great progress in terms of theoretical research, product types and varieties, and product electrical properties. . In the 1990s, a valve-regulated lead-acid battery that used AGM materials and poor liquid design, during the charging process, the oxygen generated by the positive electrode and the active material of the negative electrode quickly reacted and reduced to water, and no need for water replenishment and maintenance began. mass-produced and put on the market. It has the excellent performance of high performance, no pollution, maintenance-free, safe and reliable. [0003] Although valve-regulated lead-ac...

Claims

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Application Information

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IPC IPC(8): H01M4/57H01M4/62H01M4/14
CPCH01M4/14H01M4/57H01M4/62H01M2004/028Y02E60/10
Inventor 庄建欧阳万忠周文渭高根芳代飞刘克宇李越南曹龙泉陈群
Owner TIANNENG BATTERY GROUP
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