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Lead sulfate is highly active for a period of time after it is formed. If it is not charged in time or is not fully charged during this period of time, so that it is not converted into positive and negative active materials in time, lead sulfate will recrystallize when the temperature is low. Precipitating on crystalline lead sulfate, this is repeated again and again, so that the crystal particles continue to grow, becoming lead sulfate crystals that are poor in conductivity, difficult to dissolve, and difficult to recover when charging, which is commonly referred to as irreversible salinization.
There are many reasons for battery failure, such as fatal corrosion of the electrode grid, severe deformation of the electrode grid, shedding of electrode active material, internal short circuit or open circuit of the battery, and other physical and chemical reasons. However, statistics show that most battery failures are caused by It is caused by irreversible sulfation of the electrode active material. This kind of salt is difficult to restore to lead dioxide and spongy lead during charging, which is very harmful to the battery: its formation consumes active materials and reduces the effective capacity of the battery. This will cause the battery to be scrapped for a long time. It is difficult to recover when charging, and it will block the gap of the porous electrode, hinder the passage of electrolyte, and increase the internal resistance; more heat is generated during charging and discharging, and the temperature of the battery rises, which will increase the corrosion and deformation of the electrode plate and cause the active material to fall off Lead to structural scrapping of the battery; reduce the charging efficiency and prolong the charging time, resulting in waste of time and energy; cause more serious electrolysis of water, and the battery is easy to lose water and dry up; due to the reduced capacity, the output power is insufficient, in order to maintain a certain output It can only increase the depth of discharge, which will cause sulfation to become more serious and form a vicious circle; due to the consumption of sulfuric acid, the density of the electrolyte decreases, the high-current discharge capacity decreases, and the performance decreases.
Through the above introduction, High Speed Electric Motorcycle Manufacturers hopes that you can simply refer to the content of this article in future use.