New energy vehicles are more suitable to use lead-acid batteries or lithium batteries?

New energy vehicles are more suitable to use lead-acid batteries or lithium batteries? At that time, new energy vehicles were powered by lithium batteries and lithium-ion batteries. As we all know, lithium batteries are very expensive. After several price cuts, the cost per watt-hour is still as high as about 1 yuan by the end of 2018. The battery capacity of mainstream electric vehicles is about 60kWh, and if taxes are included, it costs more than 70,000 yuan. This is hard to compare with lead-acid batteries. Lead-acid battery is a battery whose electrodes are mainly composed of lead and its oxides, and the electrolyte is a sulfuric acid solution. It is cheap, stable in voltage, easy to correct and other advantages, and has become the first choice for electric bicycles, motorcycles and other vehicles Power lithium-ion battery, but also the important power of the car start battery. The power lithium-ion battery of new energy vehicles chooses lithium battery instead of lead-acid battery, because lithium battery is more suitable for power lithium-ion battery than lead-acid battery. Although the price is higher, the application effect is better. 1. Lithium batteries have high energy density. Due to the limited space of new energy vehicles, the battery capacity is mainly controlled by the battery energy density. As a means of transportation, the driving distance of new energy vehicles is very important. If there is not enough battery capacity to support, the new energy vehicle can not complete the high continuous driving distance. At present, the energy density of lithium batteries can reach 200~260wh/g, and the highest can break 300wh/g, while the energy density of lead-acid batteries is generally 50~70wh/g. If new energy vehicles choose lead-acid batteries as their power lithium-ion batteries, and now continue to travel only about 1/3 of the distance, the base will not be competitive. Lithium batteries are lighter. Lead-acid batteries contain large amounts 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, an important component of lithium batteries, is only 0.534g/cm3. Therefore, even with other components, the weight of a lithium battery of the same size is only one third of that of a lead-acid battery. For new energy vehicles, if lead-acid batteries are used as power lithium-ion batteries, the quality of the entire vehicle can be greatly improved, and then the energy consumption of the entire vehicle will be increased, and the wear and tear of various parts of the new vehicle will shorten the service life of the vehicle and the continued driving distance. 3. Lithium battery with high charge and discharge rate. Lead-acid batteries do not support high-speed charging and discharging, so they do not support DC fast charging, nor do they support high-speed motor operation. 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 exceed 100 kilometers, and the climbing ability and acceleration function will also drop a lot. 4. The lithium battery has a long service life. Lithium batteries can be charged 800-2000 times, while lead-acid batteries can be charged 300 times. Using lithium batteries as power lithium-ion batteries can effectively reduce the number of replacement batteries in the life cycle of new energy vehicles. In general, the battery cost is lower. 5. The lithium battery has no recall effect, the battery capacity will not be reduced due to improper use, and the driving distance will be shortened. Therefore, although lithium batteries are more expensive, the advantages of lithium batteries make them more suitable as power lithium-ion batteries for new energy vehicles than lead-acid batteries. The advantages and disadvantages of lead-acid batteries: low price, and at the same time recyclable. After use, you can go to the electric car store to make up for the difference. You can use a new set of replacement batteries to minimize the loss. For the benefit of users. The fighting ability is very strong, even if you fall a little, you can repair it and continue to use it. Disadvantages: First, the volume and weight of lead-acid batteries are very large, and the components are usually 16-30kg. In most cases, within 1.5 years). The lead-acid battery contains liquid. After the battery has been used for a period of time, if the battery is found to be hot or the charging becomes short, the liquid should be added. 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: The key to the success of electric vehicles is the price of gasoline and lithium battery packs in the future