What types of batteries do electric vehicles have? What are the precautions when charging?

There are currently three types of batteries for pure electric vehicles. One is a lead-acid battery, which is a battery whose electrode is mainly made of lead and its oxide, and the electrolyte is a sulfuric acid solution. When the lead-acid battery is discharged, the main component of the positive electrode is lead dioxide, and the main component of the negative electrode is lead. In the state of charge, the main components of the positive and negative electrodes are lead sulfate.

The second category is a nickel-hydrogen battery. It adopts constant current charging mode for charging. According to the battery's ability to accept current, different currents can be used to charge the battery. During the charging process, it is not necessary to limit the voltage of the battery cell, and at the same time, fast charging can be realized.

The third category is lithium iron phosphate batteries. It refers to a lithium ion battery using lithium iron phosphate as a positive electrode material. The positive electrode materials of lithium ion batteries mainly include lithium cobaltate, lithium manganate, lithium nickelate, <ternary material, lithium iron phosphate and the like. Among them, lithium cobaltate is the positive electrode material used in most lithium ion batteries.

A suitable charging opportunity is critical to the life of the battery. For example, if the newly purchased electric car battery is used for the first time, it is best to fill the battery to 100%.

If 100% of the power is used up, use a matching charger to charge, the general charging time will be 8-10 hours, of course, some models are not necessarily, you can charge according to the instructions of different battery types, under normal circumstances do not exceed 12 hours, it is not recommended to use up the electricity every time. It is recommended to charge the battery when the power consumption is about 70%. It is necessary to remind the vehicle to use the battery after the first full charge. Once charged for a long time, this charge can be maintained for about 10 hours, in order to allow the battery car to react chemically for a complete cycle.