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Encyclopedia of lead-acid battery knowledge
Lead-acid battery is a kind of energy storage device with lead and lead-oxide as plate materials and sulfuric acid as electrolyte. Its working principle is that during charging, the positive electrode is oxidized to produce lead oxide (PbO2), and the negative electrode is reduced to produce pure lead (Pb). During discharge, the positive and negative electrodes react to release the stored electric energy.
Lead-acid batteries have the characteristics of low price, large capacity and low self-discharge rate. However, its capacity will gradually decrease with the number of cycles and the number of deep discharges, requiring regular charging to maintain performance. In addition, lead-acid batteries should avoid over-discharge and over-charging during use, so as not to affect battery life.
In the automotive field, lead-acid batteries are the main force for vehicle starting and electronic equipment power supply, while in UPS power supply, lead-acid batteries are used to provide backup power to ensure the stable operation of the system. With the progress of science and technology, lead-acid batteries are gradually replaced by new batteries such as lithium batteries, but in some specific occasions, lead-acid batteries still have unique advantages.
To sum up, lead-acid battery is a mature and reliable energy storage device, which is widely used and easy to maintain. On the basis of understanding its principles and characteristics, users will be able to exert their best performance and extend their service life through reasonable operation and maintenance.
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