Comparison of the advantages and disadvantages of lead-acid batteries and lithium batteries

Under normal circumstances, the lead-acid battery pack weighs 16-30 kg and is relatively large; while the lithium battery generally weighs 2.5-3.0 kg and is relatively small, so it is light to ride and easy to carry. From the quality point of view, it is difficult to define the quality of the two, but consumers can buy good quality batteries processed by regular manufacturers according to their actual needs. The cost of main materials such as cathode materials, anode materials, current collectors, separators, and electrolytes of lithium batteries is much higher than that of lead-acid batteries. The cost of assembly auxiliary materials and external circuit systems for lead-acid batteries is extremely low. Due to the manufacturing process, the labor cost of lithium batteries is relatively large. In the manufacturing cost, the labor cost of lithium batteries accounts for more than 40%, while the labor cost of lead-acid batteries is generally 10% to 20%. The mechanical equipment used for lithium battery processing is expensive and valuable, and the depreciation loss of mechanical equipment is large. Lithium batteries are irreversible in most processes during processing, while lead-acid batteries are reversibly repaired and reused. The recycling value of lead-acid batteries after use is more than 40%, while the recycling value of lithium batteries is almost zero. Lithium batteries are more than 3 times higher than lead-acid batteries in terms of volume ratio energy or weight ratio energy. Lithium batteries are smaller and lighter. Long cycle life. The cycle life of lithium batteries used in electric vehicles is generally more than 800 times, and lithium batteries using lithium iron phosphate cathode materials can reach about 2000 times, which is 1.5 to 5 times higher than that of lead-acid batteries. This greatly reduces the use cost of lithium batteries, prolongs the service life, and improves the ease of use. It has a wide range of charging efficiency. This is the magical advantage of lithium batteries. When necessary, the charging time can be controlled between 20min and 1h, and the charging efficiency can reach more than 84%. On the basis of further technological innovation, this feature will be better utilized. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: Why does the lithium battery explode?