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Choose lithium batteries or lead-acid batteries for new energy vehicles?

Date:8/31/2020

Choose lithium batteries or lead-acid batteries for new energy vehicles?
 
As the core of new energy vehicles, batteries are related to the use and endurance of vehicles. According to the types of existing automobile batteries, they are mainly divided into lead-acid batteries and lithium batteries. For new energy vehicles, which one is more cost-effective to use lead-acid batteries or lithium batteries?
 
According to the characteristics of the battery, the cost performance of the lithium battery is higher. First of all, the lithium battery is composed of metal elements to form the battery cell, and it depends on lithium ions to move between the positive electrode and the negative electrode to work. According to the working principle of lithium batteries, the average voltage of lithium batteries is higher, the nominal voltage of lithium batteries is 3.6V, while for lead-acid batteries, the nominal voltage of lead-acid batteries is only about 2.0V, from As for the structure of the battery, there is a difference in the electrode potential between the lithium battery and the lead-acid battery. Lithium batteries have higher charge and discharge efficiency.
 
For these two batteries, there are also differences in energy density and packaging. For example, for the same 48V 80Ah battery, the weight of the lithium battery can be controlled at about 5 to 10Kg, and the weight of the lead-acid battery is relative to the lithium battery. Two to three times.
 
In general, lithium batteries have more advantages than lead-acid batteries, such as light weight, long service life, and fast charging speed. Decided that it is more suitable as a power battery for new energy vehicles than lead-acid batteries.