How to distinguish between lithium batteries and accumulators?

How to distinguish between lithium battery and storage battery? First: Compared with the weight, lithium batteries are lighter. The capacity density of lithium batteries is high, reaching 192Wh/kg. With the same weight and volume, the installed energy is many times that of lead-acid batteries. At present, two-wheeled electric vehicles have a long battery life. There is a choice of lithium batteries is the best way. Second: Comparison of charging efficiency. The charging efficiency of lithium batteries is higher. Take the ternary 18650 lithium battery for example, the maximum charging current is generally 0.5C, and the maximum charging current can be 12A. Of course, for the safety and life of the lithium battery, The lithium battery protection board limits the maximum charging current. At present, the maximum charging current of 6A is recommended, and the 72V24Ah battery only needs 4 hours to charge. Third: The life expectancy of lithium batteries is longer. Generally, a ternary lithium battery has a cycle number of about 800. According to the general use of our current electric vehicles, the lithium battery can be used for at least 3 years. Fourth: Comparison of performance and durability. Lithium batteries of the same capacity can effectively use more energy than lead-acid batteries. Let's compare a 72V lead-acid battery with a lithium battery. Generally, the working voltage of lead-acid batteries is 63V-82V, and the voltage difference between them is 19V. Take 2V lithium battery for example, 20 strings of 18650 lithium battery, single lithium battery working voltage is 2.75-4.2V, 20 strings is 55V-84V, in order to protect the safety and life of lithium battery, the set working voltage is 58V-83.5V, middle The differential pressure of the battery is 25.5V, which is 6.5V more than that of lead-acid batteries, which means that the working voltage range is 34% more than that of lead-acid batteries. Fourth: In terms of quality and volume, under normal circumstances, lead-acid battery packs weigh 16-30 kilograms and are relatively large; while lithium batteries generally weigh 2.5-3.0 kilograms and are relatively small in size, so they are light and easy to carry. . From the quality point of view, it is difficult to define the quality of the two, but consumers can buy high-quality lithium batteries processed by regular manufacturers according to their actual needs. Fifth: In terms of driving kilometers, for example, it is also a 48V battery. When fully charged, both lithium battery and lead-acid battery electric vehicles can run for 30-40 kilometers. The speed is mainly dependent on the size of the motor used. . Sixth: In terms of price and warranty period, the mainstream battery currently on the market is 48 volts. If it is to be replaced, the lead-acid battery is about 450, and the warranty period is 1 year; the price of lithium batteries is relatively expensive, about 1,000 yuan, but its The warranty period is 2 years. 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 post: What are the classifications of lithium battery cathode materials?