The structure of the lithium battery relies on the movement of lithium ions between the positive electrode and the negative electrode to work. During the charge and discharge process, Li+ drags and intercalates between the two electrodes to cause discharge. The positive electrode material generally uses lithium manganese oxide, lithium cobalt oxide, Lithium nickel cobalt manganese oxide (ternary material), lithium iron phosphate, etc., are basically breakthrough materials with better chemical properties, so they have excellent discharge performance, coupled with later leakage protection, prevention of overcharge and overdischarge, etc., make Lithium batteries have more advantages. At present, the energy density of relatively hot lithium-ion batteries is about 100-150Wh/kg, and the general battery charge can reach 1C. This data is obviously much higher than that of lead-acid batteries. In addition, the use of lithium batteries will not cause pollution to the human body and the environment. Moreover, the voltage of a single-cell lithium battery cell can reach 4.2V, and the capacity is higher than that of a lead-acid battery. Lithium batteries with the same capacity and voltage are lighter in volume and weight than lead-acid batteries.
But there is one point. Lithium batteries can explode. If a car using a power lithium battery is hit at a high speed, it will be very dangerous. Although all lithium batteries have been tested for drop, acupuncture, high and low temperature charging and discharging, etc., in actual use, sometimes they are worse than the test environment. It can be seen that lithium batteries still have a long way to go in the future. At present, some large-brand electric car manufacturers use lithium batteries, but in the field of energy storage, the popularity of lithium batteries has been very widespread, and they are used in various fields.