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Pb-Sb grid material for storage battery

A battery and grid technology, applied in the field of metallurgy, can solve the problems of poor charging and discharging performance and deep cycle performance of batteries, and achieve the effects of being beneficial to impurity control, improving charging and discharging performance and deep cycle performance, and reducing impedance

Inactive Publication Date: 2009-12-16
上海飞轮有色冶炼厂
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AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a kind of lead-antimony grid material for storage battery, described this lead-antimony grid material for storage battery should solve the grid material in the prior art and solve the lead-antimony grid alloy in the prior art The technical problem of poor charge and discharge performance and deep cycle performance of the manufactured battery

Method used

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Embodiment Construction

[0009] The invention provides a lead-antimony grid material for storage batteries, which contains antimony, rare earth elements lanthanum and lead, and the weight percentage of the antimony in the lead-antimony grid material is 0.5-3.5%, and the rare earth The element lanthanum accounts for 0.01-2% by weight in the lead-antimony grid material, and the balance is lead.

[0010] Further, the lead-antimony grid material also contains aluminum, and the weight percentage of the aluminum in the lead-antimony grid material is 0.01-0.08%.

[0011] Further, the lead-antimony grid material also contains strontium, and the weight percentage of the strontium in the lead-antimony grid material is 0.01-0.3% of strontium.

[0012] Specifically, when the present invention is manufactured, firstly, a lead-strontium master alloy and a lead-lanthanum master alloy are prepared, and the lead-strontium master alloy and the lead-lanthanum master alloy are manufactured by a process in the prior art, ...

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Abstract

The invention provides a Pb-Sb grid material for a storage battery, which comprises the following components in percentage by weight: 0.5-3.5 percent of Sb, 0.01-2 percent of La as a rare earth element and the balance of Pb. The rare earth element is added into Pb-Sb alloy, thereby leading a crystal grain of the alloy to become small and even, solving the problem of the thermal cracking of the Pb-Sb alloy and obviously improving the toughness, the aging strength and the erosion resistance of the alloy. The added rare earth element obviously restrains the growth of a Pb (II) oxide film and reduces the resistance of the Pb (II) oxide film, thereby improving the charge-discharge performance and the deep-cycle performance of the storage battery. A Pb-acid battery grid assembled electrocar battery produced by the alloy has the advantages of erosion resistance, deep cycle, large current discharge and long service life.

Description

Technical field: [0001] The invention relates to the field of metallurgy, in particular to alloys, in particular to a lead-antimony grid material for storage batteries. Background technique: [0002] With the shortage of energy, electric bicycles and hybrid vehicles are more and more popular in the market, but the charging and discharging performance and deep cycle performance of batteries are not very satisfactory at present. In this regard, countries all over the world are researching and developing high-performance batteries to solve problems such as reliability, maintainability, deep cycle, and corrosion resistance of lead-acid batteries. As the main part of the battery, the grid material plays an important role in the development process of the battery. [0003] At present, the grid material widely used in lead-acid batteries is lead-antimony alloy. Its main defect is that the alloy has poor mechanical properties and low mechanical strength, and the surface of the grid...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/68C22C11/08
CPCY02E60/12Y02E60/10
Inventor 沈嘉麟吴建华张忠民韩鹰顾秀峰朱卫敏
Owner 上海飞轮有色冶炼厂
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