Comparative analysis of lead-acid batteries and lithium batteries

Technology is the key. In terms of technological maturity, there are still many bottlenecks in lithium batteries that have not been broken, but in terms of waterproof and dustproof, lead-acid batteries are not as powerful as lithium batteries. After all, the power lithium-ion battery of pure electric vehicles is generally placed on the chassis of the vehicle, and it is inevitable that there will be stumbling and short-term flooding in daily driving. At this point, lithium batteries that can reach IP67 are obviously safer. The second is volume. Due to the low battery density of lead-acid batteries, under the same battery capacity, the volume of lithium ion is much smaller and lighter than that of lead-acid batteries. Generally, the volume of lithium batteries is 2/3 of the volume of lead-acid batteries, and the weight is about The weight of lead-acid batteries is 1/3, and the weight reduction can increase the endurance of electric vehicles by about 10%. Then there is life. Although from the perspective of recycling, lead-acid batteries are obviously more mature and more convenient, but in terms of life, compared with deep charge and deep discharge, they generally only have 400 times and the life span is only about 2 years. The cycle discharge exceeds 3000. Secondly, a lithium battery with an SOC still above 70% and a lifespan of 3-8 years is obviously more suitable. So, to sum up, if you buy an electric bike and replace it after only one year of riding, then it is more cost-effective to buy an electric bike that uses lead-acid batteries. The low-cost advantages of lead-acid batteries have become negligible since the beginning of the year when the batteries are replaced. When the batteries are replaced again in the third year, the cost of lead-acid batteries clearly exceeds that of lithium batteries. 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 advantages and disadvantages of lithium iron batteries for electric vehicles