Lead-acid battery grid, polar plate and manufacturing method of grid

Abstract

The invention provides a lead-acid battery grid, comprising a grid main body, bulges which are arranged in arrays are formed on one side of the grid main body, and side-open type through holes are formed between the bulges and the grid main body. The invention also provides a lead-acid battery polar plate which comprises a grid and lead plaster coated on the surface of the grid. The invention also provides a method for preparing the above polar plate grid, comprising the steps of manufacturing a lead belt, rolling belt on the lead belt, punching and deep drawing. The invention can greatly save the use amount of lead, improve the charging receptivity, discharging platform, specific energy and specific power of the polar plate; the method provided in the invention is simple, and the manufactured polar plate grid has high quality, thus being capable of realizing continuous and high-yield production of the polar plate grid, reducing bit material remelting consumption of lead, and loweringproduction energy consumption and material oxidation.

Description

technical field [0001] The invention relates to a battery grid, a pole plate and a manufacturing method of the grid. Background technique [0002] Under the tight supply and demand of energy in the world, lead-acid batteries are increasingly used as power and traction substitutes in some fields. At the same time, the vigorous development of industries such as automobiles and backup UPS has greatly increased the demand for lead-acid batteries. Lead and other non-ferrous metal resources are becoming more and more tense, and the price of lead has soared in recent years. As the main use of lead, the increase in the use of lead-acid batteries is one of the main factors. However, the traditional product of lead-acid battery still uses the traditional process of gravity casting in the production of the conductive framework, which consumes about 40% of the lead used in the entire product--the grid. The grid is heavy in weight, high in energy consumption, and poor in corrosion resis...

AI Technical Summary

Problems solved by technology

However, the traditional product of lead-acid battery still uses the traditional process of gravity casting in the production of the conductive framework, which consumes about 40% of the lead used in the entire product--the grid. Defects such as heavy grid weight, high energy consumption, and poor corrosion resistance

Although the application of expanded grids on starter batteries is relatively mature, there are some problems in the application of positive electrodes. In recent years, some people have made some progress in the application of planar stamped grids to positive electrodes. Both material saving and production efficiency have been improved, but there are limitations in the production of thick plates. Generally, only plates of about 1mm can be produced, which is difficult to apply to batteries other than initial start-up car batteries.

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