Formation method for improving floating dust on surface of negative electrode plate

Abstract

The present invention discloses a formation method for improving floating dust on a surface of a negative plate. The formation method comprises the following steps that a constant negative polar platetank is selected; the polar plate is placed into the tank in a charged state and formation is carried out with a constant negative formation method; when the formation is terminated, discharging is performed for 0.5 h with the current in the last formation stage, and the polar plate is taken out of the tank and is directly dried without water washing. The polar plate produced by the formation method of the invention has less floating dust on the surface; the floating dust can be reduced by about 20%, thereby the service performance of a battery is improved, the service life of the battery isprolonged, and the production environment of an employee is also improved.

Description

Technical field [0001] The invention relates to a method for forming a plate in the production of a lead-acid battery, in particular to a method for improving the floating powder on the surface of a negative plate. Background technique [0002] As we all know, lead and its compounds are toxic to all tissues of the human body. The way of poisoning is to inhale its vapor or dust from the respiratory tract, and then enter the blood through the respiratory tract or be absorbed through the digestive tract, and enter the blood circulation to cause poisoning. However, there is more floating powder on the surface of the electrode, which will make the production environment very harsh, which is particularly harmful to the health of the employees on site. [0003] In addition, more floating powder on the surface of the electrode plate will adversely affect the battery performance. First, the main component of the floating powder on the surface of the negative plate is lead dioxide. After en...

AI Technical Summary

Problems solved by technology

However, there are more floating powder on the surface of the plate, which will make the production environment very bad, which is especially unfavorable to the health of the on-site employees.

[0003] In addition, more floating powder on the surface of the plate will also have an adverse effect on battery performance

First, the main component of the floating powder on the surface of the negative plate is lead dioxide. After entering the separator, it will react with sulfuric acid to form lead sulfate, which will block the "channel" in the separator, thus hindering the chemical process of charging and discharging the battery. The main component of the floating powder on the surface of the negative plate is lead, which is a conductor. After entering the separator, it will short-circuit the negative and negative plates, which also affects the performance of the battery.

Second, there are more floating powder on the polar plate, which also means that the strength of the polar plate is poor, and the polar plate is easy to loosen and drop the grease during vibration.