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Lead Acid Battery Advantages And Disadvantages

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Lead Acid Batteries

Lead Acid batteries is a storage battery are the first type of batteries to feature rechargeable function, and made the debut in train carriage lighting systems. It is widely used in the automotive industry, military submarines (diesel-electric) as well as a backup power source on nuclear submarines.

A lead acid battery is constructed by putting two lead plates a positive plate covered with a paste of lead dioxide and a negative made of sponge lead, with a separator in between, the plates are then enclosed in a plastic battery case, and then submerged in an electrolyte consisting of water and sulphuric acid.

In order for lead acid cell to produce a voltage, it must receive a charge voltage of at least 2.1 volts/cell from a charger. Lead acid batteries do not generate voltage on their own; they only store a charge from another source. This is the reason that lead acid batteries are called storage batteries, because they only …show more content…

Typical charge efficiency only 70% but can be as high as 85% to 90% for special designs. Danger of overheating during charging which would lead to gassing, takes a long time to charge short life cycle - typical cycle life 300 to 500 cycles .Must be stored in a charged state once the electrolyte has been introduced to avoid deterioration of the active chemicals. Gassing is the production of hydrogen and oxygen bubbles release during charging and it would mean the that it requires maintenance (unless gel system or AGM) and it is also sespectatable to sulphation (the increase in internal resistance of the battery due to the formation of large lead sulphate crystals which are not readily reconverted back to lead) , shedding (loss of material from the plates may occur due to excessive charge rates or excessive cycling) and decomposition of the electrolyte but mainly in the gelled

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