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Rare earth lead alloy for positive electrode grid of lead-acid storage battery

A technology for lead-acid batteries and positive plates, applied in the field of rare earth lead alloys for positive grids of lead-acid batteries, and lead-calcium-tin-aluminum rare earth alloys for positive grids of lead-acid batteries, which can solve the corrosion resistance of grids and the fluidity of lead liquid Influence and other issues, to achieve the effect of enhancing high-current discharge performance and charge acceptance, increasing corrosion resistance, and increasing contact area

Active Publication Date: 2016-08-17
江苏海宝电池科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional grid lead alloy is lead-calcium-tin-aluminum alloy, in which the calcium content is in the range of 0.08-0.18%. Calcium plays a role in increasing the strength of the grid in this alloy, but too high calcium content will reduce the corrosion resistance of the grid. and the fluidity of lead liquid is affected

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0009] A rare-earth lead alloy for the positive grid of a lead-acid battery, which is prepared by melting the following materials in weight percent: 0.01% calcium, 1.2% tin, 0.025% aluminum, 0.12% lanthanum, 0.12% yttrium, and 0.13% cerium , and the rest are lead.

Embodiment 2

[0011] A rare-earth lead alloy for the positive grid of a lead-acid battery, which is prepared by melting the following materials in weight percent: 0.03% calcium, 1.32% tin, 0.035% aluminum, 0.08% lanthanum, 0.06% yttrium, 0.08% cerium, The rest is lead.

Embodiment 3

[0013] A rare-earth lead alloy for the positive grid of a lead-acid battery, which is prepared by melting the following materials in weight percent: 0.1% calcium, 1.385% tin, 0.05% aluminum, 0.01% lanthanum, 0.01% yttrium, 0.05% cerium, The rest is lead.

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PUM

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Abstract

The invention discloses rare-earth lead alloy for a lead-acid storage battery positive grid. The rare-earth lead alloy is characterized by being prepared by smelting the following component materials by weight percent: 0.01 to 0.12 percent of calcium, 1.2 to 2.0 percent of tin, 0.02 to 0.05 percent of aluminum, 0.01 to 0.12 percent of lanthanum, 0.01 to 0.12 percent of yttrium, 0.02 to 0.15 percent of cerium and the balance being lead. The rare-earth lead alloy is stable in chemical property, good in mobility, excellent in conductivity and strong in corrosion resistance; a lead-acid storage battery which is assembled by the grid is long in cycling life, strong in current discharging capacity and strong in charging acceptance capacity.

Description

technical field [0001] The invention relates to a rare-earth lead alloy for a positive grid of a lead-acid storage battery, in particular to a lead-calcium-tin-aluminum rare-earth alloy for a positive grid of a lead-acid storage battery, and belongs to the technical field of a lead-acid storage battery. Background technique [0002] The core component of the battery is the pole plate, and the performance of the pole plate is directly determined by the grid and lead paste, and the quality of the grid depends on the performance of the grid lead alloy. The traditional grid lead alloy is lead-calcium-tin-aluminum alloy, in which the calcium content is in the range of 0.08-0.18%. Calcium plays a role in increasing the strength of the grid in this alloy, but too high calcium content will reduce the corrosion resistance of the grid. And the fluidity of lead liquid is affected. Therefore, the quality of the grid lead alloy affects the strength of the grid, and the content of each a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M4/68C22C11/06
CPCC22C11/06H01M4/685Y02E60/10
Inventor 沈维新
Owner 江苏海宝电池科技有限公司
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