What is the general difference between lithium batteries and lead-acid batteries?

Lithium battery: It is a type of battery that uses lithium metal or lithium alloy as the negative electrode material and uses a non-aqueous electrolyte solution. Storage battery: It is a kind of battery. Its purpose is to store limited electric energy and use it in a suitable place. Its working principle is to convert chemical energy into electrical energy. 2. Analyze from the perspectives of weight energy density, volume energy density, service life, price, applicability, charging, national policy, environmental protection, etc. ① Weight energy density lead-acid battery pack weighs 16-30 kg and is relatively large; The weight of lithium batteries is generally 2.5-3.0 kg, and the volume is relatively small. The energy density of current lithium battery packs is generally 200~260wh/g, and lead acid is generally 50~70wh/g. Then the weight energy density of lithium batteries is 3~5 times that of lead acid, which means that under the same capacity, Lead-acid batteries are 3 to 5 times that of lithium batteries, so lithium battery packs have an absolute advantage in lightening energy storage devices. ②Volume energy density The volume capacity density of a lithium battery pack is usually about 1.5 times that of a lead-acid battery, so with the same capacity, a lithium battery is about 30% smaller than a lead-acid battery. ③The service life of lithium iron phosphate cathode materials can reach about 2000 times, which is 1.5 to 5 times longer 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. The cycle times of lead-acid batteries are usually only about 300 to 350 times, so the service life of lithium batteries is about 3-6 times that of lead-acid batteries. ④Price At present, the price of lithium batteries is more expensive than lead-acid batteries, about 3 times, but combined with the analysis of service life and the same cost, the life cycle of lithium battery packs is still longer. ⑤ Applicability Lithium battery packs are slightly less safe than lead-acid batteries, so various safety precautions should be done during use, such as preventing external forces or accidents from damaging the lithium battery, because this may cause fire or explosion; At present, the temperature applicability of lithium batteries is also very good, so in other aspects of adaptability, lithium batteries are not inferior to lead-acid batteries. ⑥The state's positive policy of lead-acid batteries causes serious environmental hazards due to processing or discarded batteries. Therefore, in terms of national policy orientation, it has been restricting the expansion of lead-acid batteries or restricting lead-acid batteries in certain areas. In the future, the trend of replacing lead-acid batteries with lithium battery packs 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: Do you know how long the life of lead-acid batteries is?