Internal formation process for high-capacity gel battery

Abstract

The invention discloses an internal formation process for a high-capacity gel battery, which comprises the following steps in turn: assembling a battery, pouring dilute sulphuric acid with the density of 1.240g/cm3 into the battery, wherein the dilute sulphuric acid is prepared from concentrated sulfuric acid and water, and 1 to 1.5 weight percent of sodium sulfate, 0.1 to 0.5 weight percent of potassium sulfate and 0.2 to 0.6 weight percent of stannous sulfate are added into the dilute sulphuric acid; charging and discharging I; pouring gel into the battery, wherein gel electrolyte prepared by mixing 3 to 5 weight percent of silica, 0.1 to 0.5 weight percent of polyethyleneglycol, 0.5 to 1.2 weight percent of sodium sulfate and the balance of water is quantitatively poured into the battery under vacuum; charging and discharging II; grouping the battery; and packing the battery. The internal formation process for the high-capacity gel battery has the advantages that: the sulphuric acid after charge and discharge and the aqueous solution of silica are mixed naturally to form the gel having a uniform and stable structure; the actual sulphuric acid amount in the battery can be controlled precisely and effectively; the grouping precision of the storage battery can be controlled; the consistency of the storage battery is improved; and the service life of the storage battery is prolonged.

Description

technical field [0001] The invention relates to an internal formation process of a large-capacity colloidal battery. Background technique [0002] At present, the thick plate large-capacity colloidal lead-acid battery is in the production process, refer to figure 1 , is to charge the cured and dried plates first, then assemble the charged plates according to the weight, and then use the plates and separators to weld them into electrode groups through special fixtures and put them into plastic cases , Sealed and assembled into a non-filled battery. By injecting 95% to 98%, the density is 1.84g / cm 3 After dilution and mixing of concentrated sulfuric acid with water and sodium sulfate, the density is 1.35~1.45g / cm 3 Additive-containing dilute sulfuric acid electrolyte, and then mix this dilute sulfuric acid electrolyte with 3% to 5% of silicon dioxide to form a density of 1.40 to 1.50g / cm 3 The colloidal electrolyte solution is injected into the battery quantitatively, and ...

AI Technical Summary

Problems solved by technology

This is a relatively common manufacturing process at present. Due to the difference in the amount of active material on the plate and the difference in the amount of acid absorbed by the separator, the actual acid content inside the battery that matches the capacity is very different, resulting in the consistency of the assembled batteries. Poor sex, short life

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