Manufacturing method for flooded maintenance-free power-type lead-acid storage battery

Abstract

The invention relates to a flooded maintenance-free power-type lead-acid storage battery and a manufacturing method thereof and belongs to the technical field of power-type lead-acid storage batteries, and the flooded maintenance-free power-type lead-acid storage battery comprises a positive grid, a negative grid, a positive electrode material formula and a negative electrode material formula. A manufacturing method comprises the following steps of: producing a battery shell by adopting a polypropylene (PP) material; adopting a polyethylene (PE) partition plate, and attaching glass fiber on the inner wall of the PE partition plate; producing the positive grid and the negative grid, and producing a positive green plate and a negative green plate; adopting the positive green plate and the negative green plate to respectively produce a polar plate through a solidification and formation process; and thermally melting and sealing a battery cap, pressing a sealing ring into the battery cap, adding a sulfuric-acid electrolyte, and installing a safety valve. By adopting the positive grid, the negative grid, the positive electrode formula and the negative electrode formula, the gas precipitation amount of the storage battery can be effectively reduced, the liquor shortage phenomenon of the storage battery can be prevented, the storage battery can be enabled to realize a maintenance-free characteristic, the probability for the overflowing of the electrolyte and the precipitation of acid fog can be effectively reduced through a valve-control structure, and the safety and reliability of the battery can be improved.

Description

Technical field [0001] The invention relates to a method for manufacturing a rich liquid type maintenance-free power-type lead-acid battery, and belongs to the technical field of power-type lead-acid batteries. Background technique [0002] Lead-acid batteries for traction are widely used in industrial and mining enterprises, warehouses, docks and stations, as DC power supplies, such as trucks and forklifts, and can also be used as supporting power supplies in other areas. [0003] Existing lead-acid battery grid alloys for traction mostly use lead-antimony alloys. Because of their low hydrogen evolution potential, they produce more hydrogen. Therefore, the open exhaust structure is adopted, which is prone to lack of liquid during use and requires regular product maintenance. ; The open structure also determines the problems such as easy overflow of electrolyte acid and acid mist precipitation. The overflowing electrolyte and acid mist are easy to corrode equipment and electronic c...

AI Technical Summary

Problems solved by technology

[0003] Most of the existing lead-acid battery grid alloys for traction use lead-antimony alloys. Due to their low hydrogen evolution potential, more hydrogen is produced. Therefore, the open exhaust structure is adopted, which is prone to lack of liquid during use and requires regular product maintenance. ; The open structure also determines the problem that the electrolyte acid is easy to overflow and the acid mist is precipitated. The overflowing electrolyte and acid mist are easy to corrode the equipment and its electronic components.

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