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Preparation method of lead-based alloy for lead-acid battery grid

A lead-based alloy, lead-acid battery technology, applied in battery electrodes, circuits, electrical components and other directions, can solve the problem of not being able to significantly improve battery capacity and life, and achieve improved corrosion resistance, improved performance of inhibiting permanent deformation, and improved capacity. and life expectancy

Inactive Publication Date: 2018-01-30
四川荣联电子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the grid made of lead-based alloy composed of such a ratio is used in the storage battery, which cannot significantly improve the capacity and life of the storage battery.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Add 100 parts of lead ingots into the melting pot, heat to 350°C, and stir for 50 minutes at the same time to melt the lead; after the lead in the melting pot is completely melted in step 1, add 1 part of Sb, 2.5 parts of Ca, 30 parts of Sn , 0.25 parts of Al, heated to 500°C and stirred for 30 minutes at the same time to melt the lead-based alloy and mix evenly; after the lead-based alloy was completely melted in step 2, add 100 parts of lead ingots and keep the temperature of the melting pot at 550°C , while stirring for 50 minutes to melt the lead-based alloy and mix well. For the accumulator adopting the grid made of the lead-based alloy of this embodiment, according to the JISD5301-2006 standard, when the above accumulator is fully charged, it is discharged with a current of 9.6A and 20A respectively until the termination voltage is 10.5V. The capacity and heavy load life of the battery were measured, and the number of cycle discharges of the battery reached 374 ti...

Embodiment 2

[0016] Add 100 parts of lead ingots into the melting pot, heat to 350°C, and stir for 50 minutes at the same time to melt the lead; after the lead in the melting pot is completely melted in step 1, add 1 part of Sb, 2.5 parts of Ca, 30 parts of Sn , 0.25 parts of Al, 1 part of Ba, 1 part of Mg, heated to 500°C and stirred for 50 minutes at the same time to melt the lead-based alloy and mix evenly; after the lead-based alloy was completely melted in step 2, add 100 parts of lead ingot , keep the temperature of the melting pot at 550°C, and stir for 50 minutes at the same time, so that the lead-based alloy is melted and mixed evenly. For the accumulator adopting the grid made of the lead-based alloy of this embodiment, according to the JISD5301-2006 standard, when the above accumulator is fully charged, it is discharged with a current of 9.6A and 20A respectively until the termination voltage is 10.5V. The capacity and heavy load life of the battery were measured, and the test r...

Embodiment 3

[0018] Add 100 parts of lead ingots into the melting pot, heat to 350°C, and stir for 50 minutes at the same time to melt the lead; after the lead in the melting pot is completely melted in step 1, add 1 part of Sb, 2.5 parts of Ca, 30 parts of Sn , 0.25 parts of Al, 1 part of Ba, 1 part of Mg, heated to 550°C and stirred for 60 minutes at the same time to melt the lead-based alloy and mix evenly; after the lead-based alloy was completely melted in step 2, add 100 parts of lead ingot , keep the temperature of the melting pot at 550°C, and stir for 60 minutes at the same time, so that the lead-based alloy is melted and mixed evenly. For the accumulator adopting the grid made of the lead-based alloy of this embodiment, according to the JISD5301-2006 standard, when the above accumulator is fully charged, it is discharged with a current of 9.6A and 20A respectively until the termination voltage is 10.5V. The capacity and heavy load life of the battery were measured, and the number...

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Abstract

The invention discloses a manufacturing method for a lead-based alloy for a lead acid battery grid. The manufacturing method comprises the following steps that firstly, 100 parts of lead ingots are added to a melting pot and are heated to 350 DEG C to 400 DEG C while stirring is performed for 30 minutes to 60 minutes till lead is molten; secondly, after the lead, obtained in the first step, in the melting pot is completely molten, 1-3 parts of Sb, 2.5-5.5 parts of Ca, 30-80 parts of Sn, 0.25-3.5 parts of Al, 1-2 parts of Ba and 1-4 parts of Mg are added and heated to 500 DEG C to 550 DEG C while stirring is performed for 30-60 minutes till the lead-based alloy is molten and mixed evenly; and thirdly, after the lead-base alloy obtained in the second step is completely molten, 100 parts of lead ingots are added anew, and the temperature of the melting pot is kept at 450 DEG C to 550 DEG C while stirring is performed for 30-60 minutes till the lead-based alloy is molten and mixed evenly. A storage battery produced through the grid manufactured through the manufacturing method is capable of being charged and discharged many times and long in service life.

Description

technical field [0001] The invention relates to a method for preparing a lead-based alloy for a lead-acid battery grid. Background technique [0002] Recently, the temperature inside the cabin of a car has risen remarkably due to the increase in equipment and the design that eliminates extra space. For this reason, on-board lead-acid batteries are always placed in an overcharged state and used under harsh conditions. As a result, lead storage batteries tend to reach the end of their life quickly due to corrosion of the grid base of the positive plate or deformation of the grid base due to tension called permanent deformation. The base of the lead storage battery, such as the grid base In the manufacturing process of the battery, it is necessary to avoid deformation strength. However, a greater problem than strength is the occurrence of tensile deformation due to tensile stress due to corrosion generated during battery use, that is, so-called permanent deformation. This pe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C1/02C22C11/06H01M4/68
CPCC22C1/02C22C11/06H01M4/685Y02E60/10
Inventor 张燕王军
Owner 四川荣联电子科技有限公司
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