A curing and drying method for wet lead plaster plates of high-life valve-regulated lead-acid batteries

Abstract

The invention discloses a method for curing and drying the wet lead paste pole plate of a valve-controlled lead-acid storage battery with a long lifespan. The wet lead paste pole plate of the lead-acid battery includes a positive pole plate and a negative pole plate, including a curing stage and a drying stage; wherein, the curing stage The method is as follows: staged curing of the positive plate: the first stage controls the temperature to gradually increase from 58°C to 78°C, and cures in humid air with a relative humidity of 99.9%, and the curing time is 8 hours; the present invention adopts high and low temperature staggered and High-humidity solidification method, the method of the present invention is obtained after multiple process tests and repeated verifications, so that the main component of the solidified and dried plate is 4PbO PbSO4, 4PbO PbSO4 is better than 3PbO PbSO4 crystals, and can increase The strength of the pole plate: the long life of the battery assembled with this pole plate can overcome the early capacity attenuation caused by the lead-calcium alloy, and can obviously prolong the life of the valve-regulated lead-acid 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 sulfate 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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