What kind of lithium batteries of electric cars is better?

Source: 2020 - 03 - 28 14:09 hits: electric cars using lithium-ion battery or lead acid battery? Electric lithium battery and lead acid battery ok? Recently, a friend asked me, electric car batteries is the choice of lead-acid batteries, or lithium battery? Under the support of national policy, as the new national standard of electric vehicles, lithium battery ushered in the great opportunity of development. But we can not confuse. Before any conclusions, let's take a look at your strengths and weaknesses. Compared with lead-acid batteries, lithium batteries have a higher average voltage and energy density. In other words, the same size of lithium battery capacity is bigger. In addition, the lithium battery is relatively light, easy to carry, and relatively long service life. In addition, the lithium battery in high temperature and low temperature adaptability is stronger, the smaller the influence of temperature factor, and more and more environmental protection. Lithium battery, of course, also have three defects, their safety and stability are relatively poor, if improper operation, it is easy to happen explosion hazard. In addition, the lithium battery can't discharge current is big, high production requirements, cost is higher. Compared with lithium batteries, lead-acid battery is relatively cheap, more easily accepted by the public. In addition, the lead-acid battery better high rate discharge. Most importantly, lead-acid battery is more expensive than the lithium battery. Lead-acid batteries, however, also has its disadvantages, such as heavy metal pollution of the environment; Compared with lithium batteries, lead-acid battery has the lower energy density. Its life is shorter than the lithium battery. To sum up, the progress of lithium electric products is to realize the electric car business, but to replace the lead-acid batteries, technology must be reached the height of the matching, improve performance at the same time, can be accepted by more people. What kind of lithium batteries of electric cars is better? 1. Every piece of high quality lithium battery is controlled by consistency! All battery scan code in the sorting device sorting, according to the content of the computer scan code to take the initiative to record each capacity, internal resistance, voltage of the battery. Second, all single spray type battery capacity, wH, bar code date, batch number, production date code. 2, high quality lithium battery using the most advanced battery connection string welding machine, spot welding position and all current computer set parameters monitoring, through the battery welding computer links to the current activity, virtual welding, if there is no powerful alarm and stop welding! 3. Each group of high quality lithium batteries will use the Chinese advanced ageing equipment capacity by 100% of the aging test of product. When the batteries in the following two cases, shipment is not allowed. First, when the battery capacity cycle for 3 weeks, there are more than 0. 02% of the decline will not be delivery; When the high temperature aging voltage ( The pressure drop) Differences, a battery voltage between each string for more than 15 mv will not shipment. 4. High quality lithium batteries, cooperate with the domestic most advanced BMS system maintenance, research and development of patent. Effectively avoid the electronic components of waterproof, high temperature and oxidation, impact, and other functions, lithium battery in the process of normal use, The overcharge, over discharge, short circuit, undervoltage, over current, temperature control) Maintenance. Using lithium battery electric cars for the first time charge need to pay attention to? 1. First car charging time is lithium battery, because the car's battery has not used before, so there is no experience to charge and discharge, guarantee the normal work of the battery. Generally speaking, the charging time is about 5 - 6 hours, so that the battery can be fully charged, the charging point to longer after use. 2, charge for the first time, although not the first time, but the second is a new car, this time you can let the battery car battery is about to run out of time, and then a long time charging, charging can keep eight 9 or 10 hours, in order to make the battery chemical reactions in a good circulation. 3, the first car battery charging time, the charger can rapid heating, heat is very high, so the charging time especially in the summer, the charger should not be placed in a simple object burns calories, had better not put in the battery car seat, avoid fire.