Superlow antimony alloy for plate of accumulator

An ultra-low antimony battery technology, which is applied in the field of battery plates, can solve the problems of poor deep cycle capability, less battery maintenance, and high water loss rate, and achieve the effects of improving corrosion resistance, improving overall performance, and reducing water loss rate

Active Publication Date: 2007-09-12
CHAOWEI POWER CO LTD
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Problems solved by technology

[0005] To sum up, after the tin content in the lead-calcium alloy is increased, the corrosion layer is doped with lead oxide, which improves the conductivity and stability, but the tin content is very large, about 1.2%, and the price of tin is very high, so the raw material High cost; poor deep cycle capability; poor creep resistance
The antimony content in lead-antimony alloys (high antimony alloys and low antimony alloys) is very high, the antimony content of high antimony alloys is about 3%~7%, and the antimony content of low antimony alloys is about 1.8%. The antimony content of the alloy is high, and the price of antimony is high, so the raw material cost is also high; the water loss rate is high, and the low antimony alloy is only suitable for low-maintenance batteries; the high antimony alloy is only suitable for open batteries, they are used in Doesn't work well on sealed batteries

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  • Superlow antimony alloy for plate of accumulator

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Embodiment Construction

[0013] The manufacturing process of the ultra-low antimony alloy for battery pole plate of the present invention comprises the following steps:

[0014] 1. First make Cu-Sb alloy, Cu: 20%~24%; Sb: 76%~80%; first heat Sb to melt at 700°C, add Cu to the end, and keep for 10 minutes;

[0015] 2. Make Sb-As alloy again: Sb: 62%-72%; As: 28%-38%; first heat Sb to 700°C, add As in stages, each time to the end, about 10 minutes to reach the formula quantity;

[0016] 3. Making Cu-Sb-As-S-Sn-Pb. First heat Pb to 680°C, add Cu-Sb alloy, As-Sb alloy, Sn, and then add S to complete.

[0017] As shown in Figure 1, it is a partial reaction equation during the production process of the ultra-low antimony alloy used for the battery pole plate of the present invention. The specific configuration method includes the following steps:

[0018] 1. Add 9.2kg of electrolytic antimony to the electric furnace and heat and melt it. When it reaches 700℃, add 0.6kg of copper shavings to form an alloy...

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Abstract

The alloy with very low Sb content for accumulator plate contains Sb 0.7-1.0 wt%, Cu 0.03-0.06 wt%, S 0.003-0.006 wt%, As 0.15-0.25 wt% and Sn 0.1-0.3 wt% except Pb. The alloy has lower Sb content and thus low cost, and has raised Cu, As and trace elements resulting in raised strength, raised anticorrosive performance, high creepage resistance, and raised comprehensive product performance.

Description

【Technical field】 [0001] The invention relates to battery pole plates, in particular to alloys for battery pole plates. 【Background technique】 [0002] The active material of the positive electrode of the lead-acid battery is lead dioxide, the active material of the negative electrode is lead sponge, and the electrolyte is a dilute sulfuric acid solution. +PbO 2 (Positive pole)+2H 2 SO 4 ====2PbSO 4 +2H 2 O (discharge reaction) Its charging chemical reaction is that lead sulfate and water are converted into lead dioxide, sponge lead and dilute sulfuric acid. 2PbSO 4 +2H 2 O====Pb (negative electrode)+PbO 2 (Positive pole)+2H 2 SO 4 (Charging reaction) The rated voltage of a single lead-acid battery is 2.0V, generally connected in series to 6V, 12V for starting and lighting of automobiles and motorcycles, and single batteries are generally connected in series to 36V, 48V, 96V, 110 or 220V for different occasions . The positive and negative plates in the battery ar...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C11/10
Inventor 刘孝伟
Owner CHAOWEI POWER CO LTD
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