Are lithium-ion batteries in electric vehicles safe?

In fact, the lithium-ion battery itself is not so risky, just because it must be a lithium-ion battery maintenance system software in the case of application, and then must be maintained in the case of application that it will not be subject to high temperature, strong impact, etc. Hazards of unexpected situations. In contrast, the maintenance of lithium-ion batteries in electric vehicles is very stringent. There are undoubtedly some safety risks in lithium-ion batteries for electric vehicles. The safety factor and reliability of lithium-ion batteries refer to the probability that lithium-ion batteries are not easily uncontrollable under all normal operating standards. The safety risk of rechargeable batteries is a common fault in the extremes of rechargeable batteries. The lithium-ion batteries of new energy electric cars we understand are all suitable for fast charging, with a wide operating temperature range and a long service life. Therefore, the rechargeable battery itself rarely explodes or catches fire, which is relatively safe. Compared with the messy structure of traditional gasoline vehicles, the reason for the fire of electric vehicles is relatively simple, which is caused by the uncontrollable heat of lithium-ion batteries. Smoke, fire, and even explosion caused by heat that cannot be controlled are the most common characteristics of the entire process of common failures of lithium-ion batteries. The key to thermal uncontrollable is caused by factors such as overcharge, external force use, and internal short-circuit failure. Among them, fire accidents caused by the uncontrollable heat of power lithium-ion batteries caused by external forces are more common. Since the power lithium-ion battery used in electric vehicles is composed of many lithium-ion batteries, taking Tesla as an example, the full set of power lithium-ion batteries are very large and placed on the car chassis. In that way, it is relatively simple to extrude the lithium-ion battery pack when the car hits, causing the rechargeable battery to deform, crack, short-circuit failure, etc., and cause uncontrollable heat. The most frightening thing is that the uncontrollable heat of one battery is likely to cause a chain reaction, causing the heat of the lithium-ion battery of other battery cars to be uncontrollable. The driving force of lithium-ion battery electric vehicles is similar to lead-acid batteries. After charging the battery for 6-8 hours, it can drive 30-45 kilometers depending on the battery power, and the net weight is only about 1/5 of the lead-acid battery. The greater advantage of lithium-ion battery electric vehicles is their long life. Affirmation: It is said that the price of lithium-ion batteries is only a superficial level. In fact, the cost of careful calculation is similar to that of lead-acid batteries. Nowadays, lithium-ion batteries are generally guaranteed for 2 years, and lead-acid batteries are guaranteed for one year. When using lithium-ion batteries, it must be noted that the rechargeable battery will enter the sleep mode after a period of time. When the volume is less than the standard value, the use time will be relatively reduced. However, it is relatively simple to activate the lithium-ion battery. All normal battery charging 35 cycles can be activated to restore the volume. Lithium-ion batteries have basically no memory due to their own characteristics. Therefore, customers do not use unique methods and equipment when stimulating new lithium-ion 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.