Key Influence of Lead Acid Battery

Most lead acid batteries are constructed with the positive electrode (the anode) made form a lead-antimony alloy with lead oxide pressed into it, although batteries designed for maximum life use a lead-calcium alloy. The negative electrode (the cathode) is made from pure lead and both electrodes are immersed in sulphuric acid.

When the battery is discharged water is produced, diluting the acid and reducing its specific gravity. On charging sulphuric acid is produced and the specific gravity of the electrolyte increases. The specific gravity can be measured using a hydrometer and will have a value of about 1.250 for a charged cell and 1.17 for a discharged cell, although these values will vary depending on the make of battery. The specific gravity also depends on the battery temperature and the above values or for battery at 15℃。

If lead acid batteries are over discharged or left standing in the discharged state for prolonged periods hardened lead sulphate coats the electrodes and will not be removed during recharging. Such build-ups reduce the efficiency and life of batteries. Over charging can cause electrolyte to escape as gases.

The capacity of lead acid battery is very dependent on the temperature at which the battery is operating. The capacity is normally quoted for a temperature of 25℃, however, the capacity will reduce by about 50% at -25℃ and will increase to about 10% at 45℃。Due to internal resistance and the fact that the charging voltage is greater than the discharge voltage, the energy returned by the battery upon discharge will be less than the energy used for recharging. Note that because of the internal resistance of the battery, the efficiency will depend on the charging and discharging rate.

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Hi, this is lissa, and I am try to tell something about leoch battery, such as lead acid battery, GEL battery, VRLA battery, UPS battery, motorcycle batteries, golf cart battery, car battery, etc, hope you like it. And if you currently have some suggestions or advices, I am really appreciate if you tell me.