The service life of the battery depends to a large extent on the battery usage environment, production process and storage state. If it is biased between two, the number of uses determines that the battery life should be accurate. The service life of the battery is related to many factors. It cannot be generalized that affecting the service life of the battery has the following factors:1, discharge depth
The discharge depth begins to stop during the process of discharge, and 100% depth indicates full capacity. Lead-acid battery life is greatly affected by discharge depth. The focus of design consideration is to use cycle, shallow cycle use or floating charge. When the battery used by the shallow cycle is used in deep cycle, the lead-acid battery will quickly fail.
Because the positive electrode active material neutral binding is not strong, the lead is generated when the lead is discharged, and the charge is restored to the lead in the charging, and the molecular weight of the lead of the lead of sulfate is larger, and the active material is expanded during discharge. If a rat is converted to lead, the volume increases by 95%, so repeated contraction and expansion, the mutual binding between the particles of the neutral particles is gradually relaxed, and it is easy to fall off. If only 20% of the active substance of a mole of the lead, shrink, the degree of expansion is greatly reduced, and the binding force breaks slowly, and therefore, the deeper discharge depth is, the shorter the life of which.
2, over charge
There is a large amount of gas precipitation at the time of overcharge. At this time, the active substance is subject to the impact of gas. This impact will promote the falling of the active material; in addition, the positive plate grid alloy is also corroded by severe anodization, so the battery is overcharged. The application period is shortened.
3, the effect of temperature
Lead-acid battery life is extended with temperature rise. At 10 ¡ã C ~ 35 ¡ã C, each liter is 1 ¡ã C, about 5 to 6 cycles, between 35 ¡ã C to 45 ¡ã C, 25 ¡ã C, 25 cycles per liter, more than 50 ¡ã C, due to Negative vulcanization capacity loss reduces life.
Battery life increases with temperature in a certain temperature range, because the capacity increases with temperature increases. If the discharge capacity is constant, the discharge depth is lowered, and the lack of life is prolonged at the temperature rise.
4, influence of sulfuric acid concentration
The acid density increases, although the positive electrode plate capacity is advantageous, but the self-discharge of the battery increases, the corrosion of the grid also accelerates, which also causes looseness of the lead in the cell, and the cycle life decreases as the battery is used in the b Recommend: LiFePO4 Battery Manufacturer Energy storage battery Manufacturer Integrated machine energy storage battery series Manufacturer Lead lithium battery Manufacturer Outdoor Backup Battery Manufacturer Portable outdoor power supply Manufacturer Power battery Manufacturer Powerwall LiFePO4 Battery Manufacturer Battery rack Manufacturers Telecom LiFePO4 Battery Manufacturer Wall mounted battery storage Manufacturer China Lifepo4 Battery
