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
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[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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