Lead accumulator

Abstract

A lead battery employing a collective exhaust system and exhibiting excellent gas exhaust function and electrolyte leakage preventive function in which the electrolyte does not leak even when the battery turns sideways. In the lead battery equipped with a collective exhaustion mechanism, a partition wall is arranged to surround an opening consisting of an electrolyte circulation opening (33) and a gas exhaust opening (34), a cell communicating subchamber (35) sectioned from exhaust chambers (37, 37', 37'') by the partition wall is provided, and the cell communicating chamber (35) is communicated with the exhaust chambers (37, 37', 37'') through a cut (36) provided on the partition wall, and the cell communicating subchamber (35) is isolated from the exhaust chambers (37, 37', 37'') by the partition wall excepting the cut (36).

Description

technical field [0001] The present invention relates to a lead storage battery having an exhaust structure for exhausting gas while preventing electrolyte solution from escaping. Background technique [0002] The exhaust structure of an integral lead-acid storage battery with multiple cells is roughly divided into a separate exhaust method and a collective exhaust method. The separate exhaust method is to install an exhaust plug on each unit cell and arrange them side by side. In the gas method, the gas exhausted from each unit cell is temporarily introduced into an exhaust chamber, and the gas is collected and discharged to the outside from the exhaust chamber. Compared with the separate exhaust method, the collective exhaust method has the advantages of fewer parts, the volume of the upper space of the plate can be reduced without reducing the battery capacity, the battery can be miniaturized, and the amount of electrolyte escape can be reduced. , so it is widely used in ...

AI Technical Summary

Problems solved by technology

In the methods proposed in the above-mentioned patent documents 1 to 3, when the electrolyte level fluctuates and inclines, the electrolyte passes through the gas discharge port connecting the unit cells and the exhaust chamber, and the electrolyte in the unit cells may fly out into the exhaust chamber.

In addition, the electrolyte may overflow from the vent chamber to the outside of the battery when the battery is turned over by mistake

In addition, space cannot be secured on the upper cover side of the centralized exhaust chamber, and the gas discharge function may be impaired, or the filter may fall to the bottom of the centralized exhaust chamber and fail to function as a filter.

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