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Lead-acid storage battery and anode material thereof

A lead-acid battery, positive electrode material technology, applied in battery electrodes, circuits, electrical components, etc., can solve the problems of low specific energy and cycle life of batteries, low utilization rate of positive active materials, etc., achieve high specific energy, improve shape and size, the effect of enhancing the binding force

Active Publication Date: 2012-07-25
ZHUZHOU SMELTER GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention solves the technical problems of the lead-acid storage battery in the prior art, such as low utilization rate of positive electrode active material, low specific energy and cycle life of the battery

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A positive electrode material S1 for a lead-acid battery, the positive electrode material components and their mass percentages are: 75wt% of lead powder with an oxidation degree of 79%, 5.4wt% of lead-carbon composite material, 0.1wt% of short fibers, tetrabasic sulfuric acid Lead 2wt%, red lead 5wt%, deionized water 7wt%, 1.4g / cm 3 Sulfuric acid 5wt%, organic additive PTFE 0.5wt%.

[0028] Coat both sides of the lead-acid battery positive electrode material S1 on a grid-shaped lead alloy grid with a thickness of 2.35mm, cure at 40-70°C and a relative humidity of 90-99% for 24-72h, and then at 50-80°C , Drying for 4-16 hours at a relative humidity of 20-40% to obtain a raw positive electrode; at 1.4g / cm 3 Sulfuric acid is used as the electrolyte, and the raw positive electrode is assembled with the negative electrode (composed of lead powder, sulfuric acid, deionized water, hydrogen evolution additive and activated carbon conductive agent) commonly used in the prior a...

Embodiment 2

[0030] A kind of anode material S2 of lead-acid storage battery, described anode material component and its mass percent are: oxidation degree is 68wt% of the lead powder of 79%, lead-carbon composite material 5.5wt%, short fiber 0.5wt%, tetrabasic sulfuric acid Lead 3.5wt%, red lead 4wt%, deionized water 12wt%, 1.4g / cm 3 Sulfuric acid 6wt%, organic additive PTFE 0.5wt%.

[0031] Coat both sides of the positive electrode material S2 of the lead-acid battery on the 2.35mm thick grid-shaped lead alloy grid, cure at 40-70°C and 90-99% relative humidity for 24-72h, and then at 50-80°C , Drying for 4-16 hours at a relative humidity of 20-40% to obtain a raw positive electrode; at 1.4g / cm 3 Sulfuric acid is used as the electrolyte, and the raw positive electrode is assembled with the negative electrode (composed of lead powder, sulfuric acid, deionized water, hydrogen evolution additive and activated carbon conductive agent) commonly used in the prior art, and then obtained the lea...

Embodiment 3

[0033] A positive electrode material S3 for a lead-acid storage battery, the positive electrode material components and their mass percentages are: 65wt% of lead powder with an oxidation degree of 79%, 9wt% of lead-carbon composite material, 0.3wt% of short fibers, tetrabasic lead sulfate 3wt%, red lead 4wt%, deionized water 8wt%, 1.4g / cm 3 Sulfuric acid 10wt%, organic additive CMC 0.7wt%.

[0034]Coat both sides of the lead-acid battery positive electrode material S3 on a grid-shaped lead alloy grid with a thickness of 2.35mm, cure at 40-70°C and a relative humidity of 90-99% for 24-72h, and then at 50-80°C , Drying for 4-16 hours at a relative humidity of 20-40% to obtain a raw positive electrode; at 1.3g / cm 3 Sulfuric acid is used as the electrolyte, and the raw positive electrode is assembled with the negative electrode (composed of lead powder, sulfuric acid, deionized water, hydrogen evolution additive and activated carbon conductive agent) commonly used in the prior ar...

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Abstract

The invention provides an anode material of a lead-acid storage battery. The anode material of the lead-acid storage battery comprises lead powder with the oxidability ranging from 75% to 82%, short fibers, tetrabasic lead sulfate, red lead, sulfuric acid, water, lead and carbon composite materials and organic additives. The content of the lead and carbon composite materials ranges from 5wt% to 20wt% on the basis of the total mass of the anode material of the lead-acid storage battery. The invention further provides the lead-acid storage battery comprising the anode material. The utilization rate of active substances of an anode of the lead-acid storage battery is effectively increased, and the lead-acid storage battery is high in specific energy and long in cycle life.

Description

technical field [0001] The invention relates to the field of lead-acid batteries, in particular to a lead-acid battery cathode material and a lead-acid battery. Background technique [0002] Lead-acid batteries have a history of more than 150 years. Because of their good reliability, high cost performance, rich resources and recyclability, they have been widely used in social life, industrial production and even military fields. With the rapid development of the global economy and society, petrochemical resources and energy are increasingly scarce, the ecological environment is deteriorating, and the pressure on environmental protection is increasing sharply. Therefore, lead-acid batteries with good stability have become the backup for hybrid and pure electric vehicles in the new energy industry. Choose one of the batteries. [0003] However, in recent years, domestic and foreign academic research on lead-acid batteries, especially super batteries, has agreed that there is ...

Claims

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Application Information

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IPC IPC(8): H01M4/36H01M4/62
CPCY02E60/12Y02E60/10
Inventor 李正明张德晶窦传龙石光张伟陈顺林文军
Owner ZHUZHOU SMELTER GRP
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