The Effect of Anhydrous Sodium Sulfate on Batteries
Sodium sulfate is a monoclinic crystal system, easily soluble in water, white crystal or powder, hygroscopic. Sodium sulfate solution is colorless solution. Sodium sulfate has no water sodium sulfate powder, by-product sodium sulfate powder, sodium sulfate decahydrate glauberite, etc.
Battery industry applications:
Anhydrous sodium sulfate is mainly used to prepare electrolyte additives to stabilize the activity of the electrolyte. Reduce the battery plate vulcanization aging degradation, stabilize and activate the battery capacity, sodium sulfate quality, ratio content and activity directly affect the quality and life of the battery.
The role of anhydrous sodium sulfate in the battery:
The charging and discharging process of a lead-acid battery is an electrochemical reaction process. When charged, lead sulfate forms lead oxide, which is reduced to lead sulfate when discharged. Lead sulfate is relatively easy to crystallize the substance, when the concentration of lead sulfate in the electrolytic solution in the battery is too high or the static idle time is too long, it will form small crystals, these small crystals then attract the surrounding lead sulfate, like a snowball to form a large inert crystal, the crystallized lead sulfate charge not only can not be reduced to lead oxide, but also precipitate attached to the electrode plate. Caused by the decrease in the working area of the electrode plate, this phenomenon is called vulcanization, and the role of anhydrous sodium sulfate is to solve the problem of battery vulcanization specially added a substance
Its mechanism is: because sodium is more active than lead, adding a small amount of sodium sulfate, most of the substances generated during the discharge are sodium sulfate, the generation of lead sulfate is relatively small, and sodium sulfate does not crystallize, there is no bulk lead sulfate crystallization when charging, so that the production of battery vulcanization can be reduced and the service life of the battery can be increased.