Is it better to use lead-acid batteries or lithium batteries for electric vehicles?

Electric vehicle charging does not have explosive conditions. But it has the conditions to burn. Electric vehicles that use lead-acid batteries can only be low-speed electric vehicles, such as scooters in the old age, and all electric vehicles that can be legally used on the road use lithium batteries. Electric vehicles can cause fires when they are being charged, but the probability is particularly low. The reason for the combustion is nothing more than a failure of the power management module, resulting in battery overcharging, excessive current, and violent spontaneous combustion after battery thermal runaway, which will ignite the entire vehicle. Many reasons for the spontaneous combustion of electric vehicles reported in the news are caused by accidents. For example, the battery is punctured in an accident, and the battery will burn violently after being punctured, and this kind of fire is difficult to save. Once it burns, only a lot of water can be used. The fire extinguisher is almost ineffective when the temperature is lowered to extinguish the fire. However, fire engines cannot arrive in such a timely manner. Therefore, most of the spontaneous combustion caused by accidents will be turned into ashes because of the delay in fighting the fire. There are also many brands of electric vehicles that spontaneously ignite when they are parked. There are many reasons for this. It is unclear in a few words and most manufacturers will not disclose the reason for spontaneous combustion, such as prevarication with experimental products. Lead-acid batteries and lithium batteries. Lead-acid batteries are only used in older scooters, and all compliant cars use lithium batteries. Which of the two batteries is better depends on the type of car. Lead-acid batteries have low energy density, large volume, sufficient weight, low price, and simple charge and discharge control. However, it is not suitable for use in compliant electric vehicles. Compliance electric vehicles have high motor power, high speed, longer cruising range, and not much space for the battery. Therefore, lithium batteries with higher capacity density are more suitable. Electric car. But for low-speed electric vehicles, lead-acid batteries are a better choice. The motor power of this type of car is small, only a few kilowatts. At the same time, the speed is not high, the weight of the vehicle is not high, and the power consumption is low. There is enough space for batteries. Lead-acid batteries are particularly suitable and cheap, even after they are scrapped, they can be sold at a good price, at least 1/3 of the price of a new battery. However, the cost of replacing lithium batteries is high, and the charge and discharge control of this type of electric vehicle is not very accurate. Due to cost constraints, the quality of the lithium battery selected for this type of electric vehicle is not too high. Therefore, lithium batteries generally have a short life and cannot achieve the theoretical number of cycles. Once the battery is damaged, it is almost e-waste and cannot be sold at a good price like a lead-acid battery. 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: What are the important advantages of using 18650 batteries for new energy electric vehicles?