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Corrosive-proof grid material with excellent deep-circulating performance

A deep-cycle, corrosion-resistant technology, applied in lead-acid battery electrodes, electrode carriers/current collectors, etc., to improve current distribution, enhance corrosion resistance, and improve utilization

Inactive Publication Date: 2005-05-11
上海飞轮有色冶炼厂
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

Traditional lead-calcium and lead-antimony alloys cannot meet the above requirements due to various defects

Method used

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Comparison scheme
Effect test

Embodiment Construction

[0009] The following are the relevant mechanisms:

[0010] (1) The new element copper Cu is added to the traditional lead-calcium alloy, and the copper-containing grid is applied to the battery as a new material, which not only improves the current distribution and improves the utilization rate of the electrode active material, but also greatly improves the high-rate discharge specific energy. At the same time, the copper in the positive grid alloy can promote the PbO 2 In this way, the conductivity of the corrosion layer of the battery is improved, thereby improving the deep cycle ability of the battery and the dry passivation phenomenon during storage. Adding less than 0.1% copper to lead and low-alloyed lead alloys can refine grains, improve structural stability during heating and improve mechanical properties. When the lead alloy liquid is poured into the mould, the alloy liquid cools rapidly, and as the temperature drops, the nucleating agent with a high melting ...

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Abstract

The invention was involved in one slab lattice material with corrosion resistance and fine deeprecycle. The alloy consist of 0.06%-0.08%, 0.30%-1.50% Sn, 0.02%-0.04% Al,0.01%-0.04% Cu, 0.008%-0.05% Ag and little of Pb. The alloy had enough mechanical strength, namely enough setting rate, fine corrosion resistance, deep discharge and good recycling performance. It was suitable to develop the late model green power battery with exempt maintenance performance. It was with high energy, deep charge and discharge recycling, large electric current discharge and ultrathin type.

Description

Technical field [0001] The invention relates to a grid material with excellent corrosion resistance and deep cycle performance. Background technique [0002] With the depletion of oil resources and the increasingly serious environmental pollution caused by fuel vehicle exhaust, electric vehicles, as a new generation of green and environmentally friendly means of transportation, have received great attention from developed countries in the world. Electric vehicles have been introduced to the market to improve the impact of fuel vehicles on the atmosphere. pollution caused. Therefore, the electric vehicle industry is booming all over the world. However, the comprehensive performance of electric vehicles still has a long way to go compared with fuel vehicles. One of the key problems is that the performance of electric vehicle power batteries is not ideal. In order to promote the development of the electric vehicle industry, research and development of new power storage batteri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C11/06H01M4/14H01M4/73
CPCY02E60/10
Inventor 吴建华顾秀峰沈嘉麟韩鹰张忠民
Owner 上海飞轮有色冶炼厂
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