Flooded maintenance-free power-type lead-acid battery and manufacturing method thereof

Abstract

The invention relates to a flooded maintenance-free power-type lead-acid battery and a manufacturing method thereof and belongs to the technical field of power-type lead-acid batteries. Material formulae of a positive grid, a negative grid, a positive pole and a negative pole are included. The manufacturing method comprises the following steps: a battery case is made of a PP material; a partition is a PE partition into which glass fibers are attached; the positive grid and the negative grid are produced to manufacture a positive green plate and a negative green plate; the positive green plate and the negative green plate are subjected to curing and forming processes to manufacture plates; a battery case cover is subjected to hot-melt sealing and pressed into a sealing ring; a sulfuric acid electrolyte is added; a safety valve is mounted. The formulae of the positive grid, the negative grid, the positive pole and the negative pole are adopted, so that the gas eduction amount can be effectively reduced, liquid lack of the storage battery is prevented, and accordingly, the storage battery achieves the characteristic of being maintenance-free. The valve-controlled structure effectively reduces the probabilities of electrolyte overflow and acid mist eduction and improves the safety and the reliability of the battery.

Description

technical field [0001] The invention relates to a method for manufacturing a liquid-rich maintenance-free power lead-acid battery, which belongs to the technical field of power lead-acid batteries. Background technique [0002] Lead-acid batteries for traction are widely used in industrial and mining enterprises, warehouses, docks and stations as a DC power supply for trucks, forklifts, etc., and can also be used as a supporting power supply for other aspects. [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, and the overflowing electrolyte and acid mist are easy to corrode the equipment and i...

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.