Horizontal lead-acid storage battery formation method

Abstract

The invention belongs to the technical field of lead-acid storage battery manufacturing, and particularly relates to a horizontal lead-acid storage battery formation method, which comprises the following steps: 1, injecting an electrolytic solution into a storage battery through a liquid adding hole; and 2, carrying out formation according to the following method that by taking charging once and discharging once as one stage, the charging current is calculated according to battery capacity multiplying power, charging is carried out at 0.1 C for the initial stage of the formation stage, then increasing is carried out at 0.05 C, when the charging current reaches 0.3 C, decreasing is carried out at 0.05 C until the last charging current reaches 0.05 C, the charging time is decreased by 1 h every other stage, the discharging current is 50% of the charging current of the stage, and the discharging time of each stage is 0.5 h. According to the invention, the current is controlled to be the optimal current in the process of converting active substances such as unformed electrode plates Pb, PbO, 3PbO.PbSO4, 4PbO.PbSO4 and the like into positive electrode plate PbO2 and negative electrode plate spongy Pb, discharging is reasonably and timely arranged, and conversion of the active substances in the formation process is facilitated.

Description

technical field [0001] The invention belongs to the technical field of lead-acid battery manufacturing, and in particular relates to a formation method of a horizontal lead-acid battery. Background technique [0002] In the manufacturing process of horizontal batteries, it is necessary to activate the positive and negative materials inside the plate through a certain charge and discharge method, transform them into a state of charge, and improve the charge and discharge performance of the battery, as well as the chemical reaction process of self-discharge, storage and other comprehensive performance, which is called The formation process, the internal formation of the battery is to assemble the raw plate into the battery, after the assembly is completed, add dilute sulfuric acid, charge and form, so that the components of the green plate are converted into positive and negative plate materials. [0003] For the lead-acid battery used for bipolar horizontal starting, the form...

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Problems solved by technology

[0004] In addition, the electrolyte density of the finished battery in normal use should be 1.31-1.33g / cm 3 , therefore, the existing chemical synthesis process generally adopts secondary acid addition, that is, the density of the first acid addition is 1.05-1.06g / cm 3 , After the formation is completed, pour out the electrolyte in the battery and replace it with a density of 1.31-1.33g / cm 3 The electrolyte is used to complete the secondary acid addition process, so that the density of the battery electrolyte after formation meets the factory requirements; for horizontal lead-acid batteries, this method not only has the technical problem of pouring acid, but also the secondary acid addition is also difficult. Easy to check electrolyte density

[0005] Alternatively, the existing chemical conversion technology will also use one-time acid addition, that is, add 1.245-1.255g / cm 3 The electrolyte will lose water with charging, and the density of the electrolyte just meets 1.31-1.33g / cm after charging. 3 , but due to the high density of the electrolyte during charging and formation, the formation efficiency is low and the formation time is long

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