Lead mesh grid for lead storage battery and preparation method of lead mesh grid

Abstract

The invention discloses a lead mesh grid for a lead storage battery and a preparation method of the lead mesh grid. The lead mesh grid is characterized by comprising a grid body formed by weaving warps and wefts, wherein the grid body at least comprises one independent grid; a lead mesh coating area formed by the grid body is arranged at the boundary of the independent grid, and thick plastic wires or thick lead wires are arranged in the weft direction of the grid body so as to form two side frames extending in the weft direction of the independent grid; and a lead mesh coating area formed bythe grid body is arranged at the boundary of the independent grid, and thick plastic wires or thick lead wires or a plurality of thin plastic wire twisted edges or hot melting wire twisted edges are arranged in the warp direction of the grid body so as to form two side frames extending in the warp direction of the independent grid. The lead mesh grid has the advantages that the use amount of leadis small, the grid is provided with the side frames, expansion of active substances can be limited in the charging and discharging process of the battery, positive and negative active substance contact short circuit and positive active substance softening and falling are not likely to happen, the service life of the battery is prolonged, and the grid is provided with tabs and does not need prefabricated busbars.

Description

【Technical field】 [0001] The invention relates to the field of lead accumulators, in particular to a lead mesh grid for lead accumulators with high production efficiency and good corrosion resistance and a preparation method thereof. 【Background technique】 [0002] Because of its stable and reliable, no memory effect, low price, and can be made into a single large-capacity battery, lead-acid batteries are widely used as car starting power, uninterruptible power supply, power supply and energy storage from electric bicycles to diesel submarines In the field of power supply and other fields, its output and storage power still rank first in chemical power supply. There are three preparation methods for the grid of traditional lead-acid batteries: ① Gravity casting, which has a wide range of applications, but low efficiency and high pollution; ② Perforated grid, this method is to prefabricate the lead strip first, and then punch the hole. Its advantages are High efficiency, but...

AI Technical Summary

Problems solved by technology

[0008] But no matter shuttle loom or shuttleless loom in the above-mentioned prior art, it is all single-weft weaving method (as the fineness of warp and weft is the same, or the warp fineness is the same, the weft fineness is the same), thus the The lead mesh grid has the following defects: lead wires are used for the latitude and longitude lines, and the lead consumption is large; the grid has no frame, and the expansion of the active material cannot be restricted during the charging and discharging process of the battery, and it is prone to contact short circuit of the positive and negative active materials and softening of the positive active material Falling off reduces the service life of the battery; the grid has no lugs, and requires prefabricated busbars, which are then welded with weft lead wires to form tabs. The process is complex and inefficient

[0009] In summary, the current preparation methods of lead grids have obvious defects and need to be further improved.

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