Lead-acid battery electrolyte mixing device

Abstract

A lead-acid battery electrolyte mix device comprises a storage tank (1), an inlet port (2), an outlet port (3) and a baffle (4). And the electrolyte in the battery cell enters the storage tank (1) through the inlet port (2) when the vehicle accelerates, slows down, ascends, descends or steers. When the automobile resumes smooth running, there is a height difference between the electrolyte inside and outside the storage tank (1) so as to generate a pressure difference, and the electrolyte in the storage tank (1) mainly flows back to the battery cell through an outlet (3), and the electrolyte inthe battery cell forms a flow from bottom to top, so as to promote the electrolyte to be mixed evenly. The mixing device has the advantages of simple structure, convenient installation and low cost.

Description

technical field [0001] The invention relates to the technical field of lead-acid batteries, in particular to an electrolyte mixing device for lead-acid batteries. Background technique [0002] At present, in addition to portable power supplies, lead-acid batteries are still the most important secondary batteries, and have been widely used in starting or power supplies for automobiles, motorcycles, electric bicycles, trains, submarines, and backup power supplies for computers and communication equipment. . However, there is electrolyte stratification in lead-acid batteries. [0003] When the electrolyte is initially injected into a lead-acid battery, the density is uniform throughout the electrolyte. However, in the process of charging and discharging, due to the progress of the electrochemical reaction, the density of the electrolyte is different, and finally the density of the lower electrolyte is greater than that of the upper electrolyte. The charge and discharge chemi...

AI Technical Summary

Problems solved by technology

[0008] (1) The density of the electrolyte on the upper and lower parts of the plate is different, and the potentials of the active substances on the plate are different, which causes the short-circuit self-discharge of the plate itself, that is, concentration discharge

[0009] (2) The density of the electrolyte in the lower part of the plate is high, and the corrosion is high, which accelerates the corrosion of the separator and the plate

[0010] (3) The open circuit voltage (OCV) corresponding to the state of charge (SOC) is inaccurate, and the power management system (BMS) cannot accurately monitor the battery status, which affects the service life of the battery

However, these electrolyte mixing devices still have the problem of relatively complex structures.

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