Do you know which is better between lithium battery and lead-acid battery?

①Volume energy density: Under normal circumstances, lead-acid battery packs weigh 16-30 kilograms and are relatively large; while lithium batteries generally weigh 2.5-3.0 kilograms and are relatively small in size. The volumetric capacity density of lithium batteries is usually lead-acid. About 1.5 times the battery, so it is light to ride and easy to carry. The energy density of lithium battery pack is generally 200~260wh/g, and the lead acid is generally 50~70wh/g, so the weight energy density of lithium battery is 3~5 times that of lead acid. ② Production cost: The cost of main materials such as cathode material, anode material, current collector, separator, and electrolyte for lithium battery packs 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%. ③Recycling value: The mechanical equipment used for processing lithium battery packs is expensive, with high value, 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. ④Service life: the cycle times of ternary power lithium batteries are usually more than 1,000 times, the cycle times of lithium iron phosphate batteries are more than 2,000 times, and the cycle times of lead-acid batteries are usually only about 300 to 350 times. Lithium iron phosphate power lithium ion The battery cell capacity is still greater than 80% after 2000 cycles, and the 3C cycle life reaches more than 800 times. Therefore, the service life of lithium batteries is about 3-6 times that of lead-acid batteries. ⑤Price: Lithium batteries are currently more expensive than lead-acid batteries, about 3 times more expensive, but combined with service life analysis and with the same cost, the life cycle of lithium batteries is still longer. ⑥ Applicability: Because the safety of lithium batteries is slightly worse than that of lead-acid batteries, various safety precautions should be done during use, such as preventing external forces or accidents from damaging the lithium batteries, because this may cause fire or explosion; At present, the temperature applicability of lithium batteries is also very good, so in other adaptability, lithium batteries are not inferior to lead-acid batteries. ⑦ National policy: Lead-acid batteries are very harmful to the environment due to processing or discarded batteries. Therefore, in terms of national policy orientation, the expansion of lead-acid batteries has been restricted, or lead-acid batteries have been restricted in certain areas. The use of batteries. However, lithium batteries are green and environmentally friendly batteries, and there is no pollution during processing. In the future, the trend of replacing lead-acid batteries with lithium batteries will become more obvious and the progress will gradually accelerate. 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: What is the important difference between dry battery and lithium battery?