Dual-valve battery

Abstract

The invention belongs to the technical field of storage batteries. A double-valve-hole battery comprises a casing, a positive terminal, a negative terminal and an upper valve hole arranged on the upper part of the casing; the lower part of the casing is provided with a lower valve hole corresponding to the upper valve hole, and the lower valve hole is connected with the upper The valve hole forms the acid cycle during internalization, and the upper valve hole and the lower valve hole are matched with an upper valve cover and a lower valve cover. The invention realizes acid cyclic formation. During the formation process, the upper valve hole electrolyte continuously flows into the acid solution, and the lower hole continuously flows out the acid solution, and the acid solution flows repeatedly during the charging process, thereby ensuring that the upper and lower sulfuric acid density of the battery is the same, and the lower end of the battery has the same density of sulfuric acid. The formation effect of the polar plate and the top plate is the same, and the battery capacity and voltage are the same among the batteries. Therefore, this battery does not need to be matched when leaving the factory.

Description

technical field [0001] The invention belongs to the technical field of accumulators, and in particular relates to an accumulator with double valve holes. Background technique [0002] At present, conventional batteries generally have a valve hole on the upper surface of the battery, and the electrolyte is added through this hole, especially when the battery is produced, the difference in height between the upper and lower sides produces a difference in the density of the sulfuric acid liquid, resulting in the formation of the lower plate and the upper plate. Inconsistent; due to the heat generated during the formation process, the battery must be placed in a water bath to cool, because the high-temperature plate βPbO2 content is high, and the life of the battery with this content is short, and the good plate αPbO2 is formed at a low temperature High content, the battery life of this content is long; [0003] Due to the high temperature in the formation process, the formatio...

AI Technical Summary

Problems solved by technology

However, the internalization is due to the assembly of the raw plate in the shell for charging, and the charging time is as long as 5 to 7 days. The impact of the charging current on the lead paste will cause the lead powder to float in the electrolyte. If the electrolyte is not returned to clear electrolyte, which will lead to self-discharge and short battery life in the later stage

This valve hole cannot exchange the internal acid solution, so it is impossible to achieve a fresh and clear electrolyte inside

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