Lithium battery advantages, disadvantages and life analysis

Advantages and disadvantages of lithium batteries: small size and light weight. Compared with lead-acid batteries, the volume of lithium batteries is 2/3 of the volume of lead-acid batteries, and the weight is about 1/3 of the weight of lead-acid batteries. Lithium batteries of the same volume have a higher capacity than lead-acid batteries, and the reduction in weight increases the battery life of electric vehicles by about 10%. In terms of charging and discharging, lithium batteries are more durable than lead-acid batteries. When used at room temperature, lithium batteries can continue to be charged for 48 hours without battery swelling, leaking, and breaking accidents, and the capacity remains above 95%. And under the special charger, it can charge and discharge quickly. Deep charge and deep discharge more than 500 times, and there is still no memory, and the general life span is basically about 4 to 5 years. Disadvantages: The production cost of lithium batteries is high. The expensive production equipment and labor costs account for about 40% of the production cost, and the price is about three times that of lead-acid batteries. In addition, the recycling value of lithium batteries is not high, and the domestic recycling environment is also messy. Most of the lithium batteries can only be thrown away or buried somewhere. Inferior lithium batteries, the sealing conditions of electric vehicles are not very good, and they are likely to cause potential safety hazards for reasons such as poor contact due to moisture. After analyzing the battery structure, advantages and disadvantages of lead-acid batteries and lithium batteries, I will give you a detailed calculation of the replacement cost, and see if it is the high input cost of lead-acid batteries or the high input cost of lithium batteries. In August 2017, we carried out a Hengping activity of 8 electric vehicles. During the endurance exploration, the little turtle of Luyuan used an average speed of 21.49km/h and a battery life of 59.2km. Its battery capacity is our common 60V20Ah. The motor power is 800W. Next, we compare the battery capacity and motor power of this car. Lithium battery service life: Lithium batteries are usually very much in contact with us. Take a mobile phone as an example. After a mobile phone is used for 1-2 years, the battery life is not as good as before, but few people will consider replacing the battery within two years. As we all know, our mobile phones warn when the battery is less than 20%. Most people will choose to charge the mobile phone at this time. From 20%-100% overflow, we only use 0.8 cycles of charging and discharging. According to this Frequency The number of cycles of charging and discharging lithium batteries in two years is 36520.8u003d584 times. 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: Understanding the battery memory effect