Why do electric vehicles use lithium batteries as the power core?

As we all know, the core kinetic energy of electric vehicles is the battery, which determines the weight, speed, life, mileage and starting performance of the car. Traditional electric vehicles use lead-acid batteries as kinetic energy. They have been a kind of lead-acid batteries for a long time. They are low in price and high in quality. They are loved by consumers. However, lead-acid batteries are large in size and weigh 40% of the entire vehicle. Car Co., Ltd. Has become a traditional capacitor, and the lifespan of lead-acid batteries is also as short as about two years. With the development of technology, some electric vehicle brands have also begun to experiment in the field of lithium batteries. More and more models have abandoned lead-acid batteries and replaced them with lithium batteries. 1. Lithium battery has high voltage and light weight. The average voltage of a single battery can reach 3.7v or 3.2v, which is equivalent to the voltage of 2 to 4 nickel-hydrogen batteries or nickel-separated batteries connected in series. If the customer wants to use the battery voltage gap, then choosing the lithium battery is also easy to form a lithium battery pack, which can increase the voltage of the lithium battery conveniently and quickly. 2. Lithium batteries have higher energy and density than other batteries. Lithium batteries have a high energy storage density. At present, the density of commonly used lithium batteries can reach 450-620wh/kg, which is 5-7 times that of lead-acid batteries. If people choose a battery, they will also consider a very important issue, that is, pollution. 3. Compare battery weight. The weight of lithium batteries is about 5-6 times that of lead-acid batteries. Although the weight of lithium batteries is not much different from the weight of lithium polymer batteries. But looking at capacity and life, people will choose lithium batteries. 4. The lithium battery has a long service life. If there is no accident, the lithium battery can be used for more than 6 years, up to 9 years. Normal use is more than 1000 times. It can be used more than 1500 times without accidents. 5. Low self-discharge and no memory effect. During the processing of the lithium battery, adding a protective plate to the body of the lithium battery will cause the lithium battery to have an overcharge effect. The lithium battery itself has a high power tolerance, and the lithium battery used in electric vehicles can achieve high-efficiency charging and discharging of 15-30c, thereby accelerating the high-intensity start of the car. 6. Lithium batteries are green and environmentally friendly. They do not contain toxic substances such as lead, mercury, and cadmium. Disclaimer: Some pictures and content of the articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: Processing method of lithium iron phosphate battery cathode material