Analysis of the difference between lithium battery and lead-acid battery

We know that lithium batteries and lead-acid batteries generally compare energy storage products from the perspectives of weight energy density, volume energy density, service life, price, applicability, and national policies: weight energy density The current lithium battery energy density is generally 200~260wh/g, lead acid is generally 50~70wh/g, then the weight energy density lithium battery is 3~5 times that of lead acid, which means that with the same capacity, lead acid battery is 3~ 5 times, so in the light weight of energy storage devices, lithium batteries occupy an absolute advantage. Volume energy density The volume capacity density of a lithium battery 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. The most popular material systems for service life are ternary and iron-lithium. 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 300. ~350 times, so the service life of lithium batteries is about 3-6 times that of lead-acid batteries. Price Currently, the price of lithium batteries is more expensive than lead-acid batteries, about 3 times, but combined with service life analysis, the same cost is still used, and the life cycle of lithium batteries is still longer. Applicability Because the safety of lithium batteries is slightly worse than that of lead-acid batteries, various safety precautions must be taken during use, such as preventing external forces or accidents from damaging the lithium batteries, which may cause fire or explosion; currently lithium batteries The battery's temperature applicability is also very good, so in other aspects of adaptability, lithium batteries are not inferior to lead-acid batteries. Disclaimer: Some pictures and content of the articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: 18650 lithium battery repair principle and repair method analysis