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Valve controlled lead-acid battery design life

Return Listsource:Gratene date: 2022-06-17

Valve controlled lead-acid battery design lifeValve-controlled sealed lead-acid batteries are generally divided into several, design life: about 5 years, about 10 years, around 20 years, 30 years, the general battery manufacturers have a lot of types, Make more choices. However, the battery life has a direct relationship with personal usage, affecting the factors affecting battery life:

1, depth discharge

The moisture volume of the cells of sulfate is larger than the lead, and the active material volume expands when discharged. A rat is converted into a mole of lead, the volume increases by 95%. The combined binding of the dioxide molecules itself is not strong. After the active material on the positive electrode during discharge, the particles of the neutral particles will gradually relax.

2, overcharge

Charging the battery will make hydropower to oxygen and hydrogen. If the over charge is severe, there will be a large amount of oxygen precipitation. Since oxygen has strong oxidation, the precipitated oxygen also causes the plate to corrode, and the active material of the plate is detached, affecting the battery life of the battery.

3, the temperature is too high

When the battery temperature is raised to 45 ¡ã C, it is advantageous to extend its service life. However, during charging, if the battery temperature is higher than 50 ¡ã C, the corrosion of the battery polar plate is accelerated, and the outer casing of the battery can be accelerated due to the increase of temperature.

4, sulfuric acid corrosion

The sulfuric acid density in the battery electrolyte increases, increases the positive electrode plate capacity, thereby increasing the battery capacity. However, the battery is discharged from the battery, and the corrosion of the plate is accelerated, which causes the neutralization of the cells to be loosened, and the corrosion of the battery pole column will increase, so that the battery life is lowere 

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