Which one is more cost-effective to use lead-acid batteries or lithium batteries?
by:Vglory 2021-04-16
According to the characteristics of batteries, it is natural that lithium batteries are more cost-effective. First of all, lithium batteries are batteries composed of metal elements and rely on lithium ions to move between the positive and negative electrodes for operation. According to the operating principle of lithium batteries, the average voltage of lithium batteries is higher. The nominal voltage of lithium battery cells is 3.6V. As for lead-acid batteries, the nominal voltage of lead-acid battery cells is only about 2.0V. In terms of the structure of the battery, lithium and lead are different in electrode potential. The charging and discharging efficiency of lithium batteries is higher. Furthermore, the energy density and packaging of the two batteries are also different. These factors have led to a big difference between lithium batteries and lead-acid batteries. According to new energy cars, they are high-speed vehicles and require a lot of electric energy. For batteries with the same 48V80Ah standard, the lithium battery component can be controlled at about 5 to 10Kg, while the lead-acid battery component is basically related to lithium batteries. It's two to three times as much. In terms of battery weight, lithium batteries are lighter and smaller in size, which will bring huge differences in vehicle battery life, handling, and so on. Generally speaking, with regard to lithium batteries, lithium batteries have many advantages, such as lightness, long service life, and fast charging speed. It is determined that it is more suitable as a power lithium-ion battery for new energy cars than lead-acid batteries. We take 72V20A as an example for both groups. The first is the distance that can be run after the electricity is overflowed. This is also a problem that everyone is more concerned about. After all, you can guard against the embarrassment of running out of electricity on the road according to the command kilometer. After the lead-acid battery overflows with electricity, you can generally run about 50 kilometers, but only 40 kilometers in winter. The lithium battery can reach 80 kilometers under full power, and 70 kilometers in winter. Next is performance. Lead-acid is also bulky. The weight of the same battery is three times that of lithium batteries and the volume is twice that of lithium batteries! Therefore, the lead-acid electric vehicles are very heavy, which is also its drawback. Therefore, many people have changed lead-acid batteries to lithium batteries, so that two lithium batteries can be placed in the original battery slot, and the driving distance and speed have been doubled. Moreover, the acceleration of lithium battery is of great help for some jobs that are in a hurry, such as express delivery, takeaway, etc. Finally, the service life is the service life. After all, even the best battery has a short service life, then its cost performance is very low. The lifespan of lead-acid is about 2 years. If the battery is improperly charged, the life will be reduced by a little more than 1 year; while the life of lithium battery will only decrease after 5 years. How this compares is very clear. Actually, the battery's actual use time It is calculated according to the number of charging and discharging. Generally, the use of lead acid is about 300 times. If it takes less than a year to charge once a day, it will be scrapped. The number of charging and discharging of lithium batteries can reach 2000 times, and the performance of lithium batteries is so good that they can be used for more than 5 years after charging once a day. The price is of course not cheap, generally around 1,600 yuan; and lead-acid batteries are of course cheaper. Generally around 800 yuan per piece. Although the price of lithium batteries is twice that of lead acid, the service life is 5 times! Calculated in this way, it will cost 4000 yuan to buy 5 lead-acid batteries to buy 1 lithium battery. Of course, the cost performance of lithium batteries will be higher for those who want to use it for a long time. Statement: Some pictures and content of articles published on this site are from On the Internet, if there is any infringement, please contact to delete the previous article: Requirements and effects of lithium battery barriers
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