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Alloy material for valve-control type sealed storage battery positive electrode plate grid and product structure

An alloy material, positive plate technology, applied in battery electrodes, structural parts, electrode carriers/current collectors, etc., can solve problems such as poor corrosion resistance of positive grids, achieve strong corrosion resistance, improve service life, and convenient material acquisition Effect

Inactive Publication Date: 2017-02-22
SHUANGDENG GRP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention mainly aims at the problem of poor corrosion resistance of the positive electrode grid made according to the prior art, and proposes an alloy material for a valve-controlled sealed storage battery grid, which has reasonable alloy components, easy-to-obtain raw materials, and simple melting process and good corrosion resistance

Method used

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Examples

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Embodiment Construction

[0016] The present invention is further illustrated below by way of examples.

[0017] The alloy material for the positive grid of the valve-regulated sealed battery is a lead-based alloy containing four elements: lead, calcium, tin and aluminum. This example is used to make the positive electrode grid of a 500Ah valve-regulated sealed storage battery. Because the specifications are moderate, the alloy material components used are measured according to the following mass percentages: Ca 0.05%, Sn 1.8%, Al 0.01%, and the rest are Pb. In this embodiment, due to the appropriate addition of Ca and Al, the metallographic structure is further refined and compacted, and an oxide film is formed on the surface of the positive electrode grid in dilute sulfuric acid, thereby improving the corrosion resistance of the alloy material itself. Adding a small amount of Ca and Sn to Pb increases the resistance value of the alloy material. The positive electrode grid made of this alloy is assem...

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Abstract

The invention discloses an alloy material for a valve-control type sealed storage battery positive electrode plate grid. The alloy material comprises the following components based on mass percentage: 0.03-0.06% of Ca, 1.0-2.0% of Sn, 0.01-0.03% of Al and the balance of Pb. A positive electrode plate grid structure prepared from the lead-based alloy is a large-grid flat-panel-shaped membrane which consists of vertically and transversely-crossed ribs; the cross section of the ribs embedded in the positive electrode plate grid is at least hexagonal; and the line spacing between the ribs is 10-20mm. Through component design and structural design, the prepared material has better corrosion resistance; in addition, the effective sectional area of the cross sections of the ribs embedded in the positive electrode plate grid is larger than a rectangular effective sectional area in the same incircle; and in short, the positive electrode plate grid having thick and strong ribs and prepared from the alloy material prepared by the invention is high in rigidity, high in corrosion resistance, low in floating charge water loss in a high-temperature environment, and capable of prolonging the service life a matched battery.

Description

technical field [0001] The invention relates to the technical field of accumulators. Specifically, the invention relates to an alloy material for positive electrode grids of a valve-controlled sealed accumulator. The invention also includes a positive electrode grid structure of a valve-regulated sealed accumulator. Background technique [0002] Lead-acid battery is a kind of traditional industrial product. It has simple structure, convenient manufacture and excellent cost performance, so lead-acid battery still occupies a dominant position in the battery market. However, there are still some disadvantages in the lead-acid battery of the prior art, for example, the specific energy index of the lead-acid battery is relatively low, the service life is short, and the service life of floating charging in a high temperature environment is even shorter. In order to improve the environment where the lead-acid battery is installed, the conventional practice is to use air conditioner...

Claims

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Application Information

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IPC IPC(8): H01M4/73H01M4/68
CPCH01M4/665H01M4/685H01M4/73Y02E60/10
Inventor 陆亚山
Owner SHUANGDENG GRP
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