Common rechargeable batteries other than the lithium batteries, lead-acid batteries a battery system is also very important. Advantages of lead-acid batteries are discharging electromotive force stable, the disadvantage is that energy (power storage unit weight) small, aggressive to the environment. Temperature for a stable operating voltage of the lead-acid battery, and use current range, hundreds of cycles of charge and discharge, storage performance (especially for dry charged storage), low cost, and thus is used widely.
Lead-acid batteries (Lead acid battery –): size and weight have been unable to obtain effective improvements, therefore by far the most common is also used in the automotive, motorcycle launched. Biggest improvement lead-acid batteries, is a new high efficiency oxygen recombination process to complete the regeneration of water in order to achieve the objective of completely sealed do not need to add water, made from the "add water to battery-free" life of up to 4 years (single electrode voltage 2V).
Lead-acid battery in 1859 by the plant since its invention has been more than 150 years of history, the technology is mature, is the world's most widely used chemical power sources. Despite in recent years nickel CD battery, and nickel hydrogen battery, and lithium ion battery, new battery have came out and to application, but lead acid battery still with big current discharge performance strong, and voltage characteristics smooth, and temperature applies range wide, and monomer battery capacity big, and security high and raw materials rich and can regeneration using, and price low, series advantage, in most traditional field and some emerging of application field, occupy with firm of status.
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