Do new energy vehicles use lithium batteries? What are the advantages of lithium batteries

New energy vehicle power lithium-ion batteries choose lithium batteries instead of lead-acid batteries because lithium batteries are more suitable as power lithium-ion batteries than lead-acid batteries. Even if the price is higher, the use effect is better. First, from a technical point of view, lithium batteries have a longer service life, which is basically more than 6 years. At the same time, the battery is small in size and has a high energy density that is 6-7 times that of lead-acid batteries. In addition, the high-performance charge and discharge energy of lithium batteries can meet the high-intensity start-up and acceleration needs of automobiles to the greatest extent. More importantly, lithium batteries can be commercialized on a large scale. Secondly, from a policy point of view, the dual-point policy puts forward higher requirements on the mileage of new energy vehicles, and for companies with mixed mileage, choosing lithium batteries as power can effectively improve the problem of substandard battery life and improve battery life. The subsidy can be obtained, the company's capital flow will be available, and the development will have the following 1. Lithium battery energy density is high Since the space of new energy vehicles is limited, its battery capacity is mainly controlled by the battery energy density . At present, the energy density of lithium batteries can basically reach 200~260wh/g, and the highest has even broken through 300wh/g, while the energy density of lead-acid batteries is generally only 50~70wh/g. If new energy vehicles choose lead-acid batteries as power lithium-ion batteries, the driving range will only be about one-third of the current range, which is not competitive at all. 2. Lighter lithium batteries. Lead-acid battery packs contain a lot of lead and sulfuric acid. The density of lead is 11.3437g/cm3, and the density of sulfuric acid is 1.8305g/cm3. The density of lithium, a key component of lithium batteries, is only 0.534g/ cm3. Therefore, even if you count other components, the weight of a lithium battery with the same volume is only about one-third of that of a lead-acid battery. If new energy vehicles choose lead-acid batteries as power lithium-ion batteries, the quality of the equipment will increase a lot, which will increase the energy consumption of the whole vehicle, increase the wear and tear of various parts of the vehicle, shorten the service life of the vehicle, and shorten the driving range. . 3. Lithium battery charge and discharge rate is large. Lead-acid battery does not support high rate charge and discharge, so it does not support DC fast charge, nor does it support high-speed motors. If lead-acid batteries are used as the power lithium-ion batteries for new energy vehicles, the maximum speed of the vehicle is estimated to be unable to break through 100 kilometers, and the climbing ability and acceleration performance will also drop a lot. 4. Long service life of lithium batteries The number of charging cycles of lithium batteries can reach 800-2000 times, while lead-acid batteries only have 300 times. Using lithium batteries as power lithium-ion batteries can effectively reduce the number of battery replacements in the life cycle of new energy vehicles. Overall, the battery cost is lower. 5. The lithium battery has no memory effect, and will not reduce the battery capacity and shorten the driving range due to improper use. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete.