Curing and drying method for wet lead plaster polar plate of long-life valve-regulated lead-acid storage battery

Abstract

The invention discloses a curing and drying method for a wet lead plaster polar plate of a long-life valve-regulated lead-acid storage battery, and the wet lead plaster polar plate of the lead-acid storage battery comprises a positive plate and a negative plate, and the curing and drying method comprises a curing stage and a drying stage. The curing stage comprises the following steps: performing staged curing on the positive plate: in the first stage, controlling the temperature to be gradually increased from 58 DEG C to 78 DEG C, and curing in wet air with the relative humidity of 99.9% for 8 hours. According to the method, a high-low temperature staggering and high-humidity curing method is adopted, and the method is obtained after multiple process tests and repeated verification, so that the main component of the cured and dried polar plate is 4PbO.PbSO4, 4PbO.PbSO4 is better than 3PbO.PbSO4, and the strength of the polar plate can be improved; the storage battery assembled by adopting the polar plate has long service life, can overcome early capacity attenuation caused by lead-calcium alloy, and can obviously prolong the service life of the valve-regulated lead-acid storage battery.

Description

technical field [0001] The invention relates to the field of lead-acid batteries, in particular to a method for curing and drying the wet lead plaster plate of a high-life valve-regulated lead-acid battery, which is mainly used in motorcycles. Background technique [0002] Valve-regulated lead-acid batteries are also called VRLA batteries. VRLA batteries are designed with lean liquid. Most of the battery liquid is absorbed by the diaphragm material, and a small part of the electrolyte is absorbed by the effective material of the plate. The oxygen cycle is realized through the mechanism of negative electrode absorption and oxidation, and There is no flowing electrolyte inside the battery, and it can be placed vertically or horizontally, so the valve-regulated lead-acid battery is also called "lean battery". [0003] In the VRLA battery, both the positive grid and the negative grid are made of Pb-Ca multi-element alloy, the grid is filled with wet lead paste, cured in a curing...

AI Technical Summary

Problems solved by technology

[0004] Four-basic lead sulfide is beneficial to prolong the life of lead-acid batteries. However, the main material of existing motorcycle batteries uses Pb-Ca multi-element alloy. Pb-Ca multi-element alloy batteries are prone to early capacity loss during charge and discharge cycles, resulting in battery life failure. , affecting battery life

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