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Multi-element alloy for making lead acid accumulator plate grid

A lead-acid battery, multi-component alloy technology, applied in the direction of electrode carrier/current collector, etc., can solve problems such as unsatisfactory results, and achieve the effects of low cost, good corrosion resistance, and improved corrosion resistance.

Inactive Publication Date: 2008-08-06
JIANGSU SHUANGDENG GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are many studies on the addition of bismuth to alloys, but no satisfactory results have been obtained so far

Method used

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  • Multi-element alloy for making lead acid accumulator plate grid
  • Multi-element alloy for making lead acid accumulator plate grid
  • Multi-element alloy for making lead acid accumulator plate grid

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] 1. Battery preparation

[0017] The Pb-Ca-Sn-Al quaternary master alloy is quantitatively put into the molten Zhuye No. 1 electrolytic lead to prepare a Pb-Ca-Sn-Al quaternary application alloy. The mass percentages of each component of the alloy are as follows: Ca 0.064%; Sn 1.224%; Al 0.018%, the rest is No. 1 electrolytic lead. A grid A is cast from this alloy.

[0018] On the basis of the above alloys, pure bismuth grains were put into quantitative analysis to prepare a Pb-Ca-Sn-Al-Bi five-element alloy. The mass percentages of the alloy components were: Ca 0.064%; Sn 1.224%; Al 0.018% , Bi 0.094%; the rest is No. 1 electrolytic lead. The bismuth-containing grid B is cast from the alloy.

[0019] The above-mentioned alloy composition is the average value of the actual analysis results of three consecutive samples of the prepared alloy on the ARL4460-433 atomic direct-reading emission spectrometer produced by Swiss ARL Company. After the grid is cast, it is age h...

Embodiment 2

[0041] Change the mass percentage content of each component of grid A to Ca 0.096%; Sn 0.084%; Al 0.032%; the rest is No. 1 electrolytic lead, and the mass percentage content of each component of grid B is changed to Ca 0.096%; Sn 0.084%; Al 0.032%; Bi 0.085%; the rest is No. 1 electrolytic lead, and the battery preparation and test effect comparison are consistent with Example 1.

Embodiment 3

[0043] Change the mass percentage content of each component of grid A to Ca 0.11%; Sn 1.4%; Al 0.022%; the rest is No. 1 electrolytic lead, and the mass percentage content of each component of grid B is changed to Ca 0.11%; Sn 1.4%; Al 0.022%; Bi 0.12%; the rest is No. 1 electrolytic lead, and the preparation and test effect comparison of the battery are consistent with Example 1.

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Abstract

The present invention discloses a multi-component alloy for manufacturing lead-acid battery grids. The alloy contains elements of lead, calcium, tin, aluminum and bismuth, and the mass percentages of the components in the total amount of the alloy are that: calcium accounts for 0.06-0.12 percent, tin accounts for 0.08-1.5 percent, aluminum accounts for 0.017-0.034 percent, bismuth accounts for 0.084-0.13 percent; the rest is electrolytic lead. The alloy is high in hydrogen evolution potential and high in corrosion resistance. When the alloy is used for manufacturing lead-acid battery grids, the recombination efficiency of a cathode to oxygen inside batteries can be improved; the charge acceptance and overdischarge resistance of an anode in the process of deep discharge recycling use can be increased; the cycle life span of made-up lead-acid batteries is remarkably increased, and the increase rate is about 20 percent.

Description

technical field [0001] The invention relates to a material for making a lead-acid storage battery grid, in particular to a multi-element alloy containing lead, calcium, tin and aluminum, belonging to the field of lead-acid storage batteries. Background technique [0002] In recent years, due to the environmental pollution caused by motor vehicles and the increasing shortage of energy sources, many countries are stepping up research on high-performance electric vehicles. The key to commercial success of electric vehicles lies in its core part - the power supply. In terms of safety, performance, price and technical maturity, valve-regulated sealed lead-acid batteries are still the most economical and practical power for electric mopeds. power supply. Batteries for electric mopeds are mainly discharged continuously with medium current, mainly with deep cycle. According to the actual use requirements of power batteries, the specific energy and deep cycle life indicators of veh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/68C22C11/00
CPCY02E60/10
Inventor 林晓东薛奎网殷培斌张明
Owner JIANGSU SHUANGDENG GROUP
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