A kind of lead-acid battery pole plate and manufacturing method thereof

Abstract

The invention relates to a lead-acid storage battery pole plate and a preparation method thereof, and belongs to the technical field of lead-acid storage batteries. The lead-acid storage battery pole plate comprises a grid and an active material layer coated on the grid, wherein the grid comprises a substrate; mesh openings are formed in the surface of the substrate; a plate lug is connected with the edge of the substrate; a non-conductor frame used for limiting the active material layer on the substrate is arranged at the edge of the substrate; and the non-conductor frame protrudes out of the substrate. The invention also discloses a preparation method of the lead-acid storage battery pole plate, and comprises the steps of lead alloy smelting, grid forming, grid pasting, pole plate solidifying and pole plate drying, wherein the grid forming process comprises the steps of manufacturing the grid through a cold pressing mode and then assembling the grid and the non-conductor frame. As the substrate and the non-conductor frame are organically combined, more active materials can be coated on the thin and light substrate, and a thick and light plane pole plate with high capacity is obtained.

Description

technical field [0001] The invention relates to a lead-acid storage battery, in particular to a lead-acid storage battery plate and a manufacturing method thereof. Background technique [0002] The lead-acid battery plate includes a grid and an active material coating coated on the grid. The grid is not only a support for the active material, but also a conductor of current. The thickness of the frame determines the amount of active material used. Since the existing grid is a planar structure, only a small amount of active material can be coated on a thinner and lighter grid, resulting in a thinner plate; if a larger amount of active material needs to be coated, it must be With thicker and heavier grids, the result is thicker and heavier plates. Therefore, it is impossible to obtain a thicker and lighter pole plate from the existing thinner and lighter planar grid, that is, it is impossible to obtain a pole plate coated with more active materials, so that the weight of the ...

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Problems solved by technology

The first type has the disadvantages of heavy grid, loose metallographic structure of the grid, weak corrosion resistance and high lead alloy consumption. The corners inevitably have the disadvantage of sharp corners. Although the third type of grid has a dense metallographic structure and strong corrosion resistance, the disadvantage of low paste content cannot be overcome.

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