The principle and prevention technology of thermal runaway of Tesla electric vehicle lithium battery

The principle of thermal runaway of Tesla electric vehicle lithium batteries and the prevention of technical fires are the origin of human civilization, but battery fires are not fun at all. The lithium battery of Tesla ModelS caught fire and quickly made people notice the most expensive and thinnest part of electric vehicles and plug-in hybrid vehicles: the battery pack. Now, according to IEEESpectrum reports, an important car manufacturer is testing a new technology that can monitor the performance of battery packs, detect ignition defects early and give warnings. Last year, IEEESpectrum published a report entitled 'CanSignalProcessingStopBatteryfireNow, its developers claim that the system has attracted the attention of many automakers, and they have now cooperated with an unknown automotive industry partner to develop battery monitoring technology, which is planned to be launched within the next five years. The thermal runaway principle of Tesla's electric vehicle lithium battery and its ability to prevent scorching. Although statistically, electric vehicle fires are not as common as traditional gasoline-powered vehicles, but they may cause serious injuries. Therefore, even if the battery fire is partly due to the chemical instability of the lithium electrolyte, Fisker Karma and Tesla ModelS are now tainted by fire scandals. Therefore, if future electric vehicles/plug-in hybrid electric vehicles are to become mainstream alternatives to today’s gasoline-powered vehicles, consumers’ fears must be overcome. After reviewing lithium battery fires in mobile phones, laptops and other consumer electronics products, TIAX of Lexington developed a battery monitoring technology that can run on car computers. TIAX said that this technology can identify the rare danger of a battery causing a thermal fire within a few dozen hours before the battery poses a threat to the rider, which is usually caused by an internal short circuit. TIAX vice president Brian Barnett said: This type of battery is very rare and difficult to identify, but it is not impossible to find. But the most challenging part of the problem is that this kind of problematic battery is almost unlikely to be found before it leaves the factory. They can only be detected in actual use, because internal short circuits appear slowly in daily driving. When TIAX reviewed the safety issues in practice, it was found that during the repeated charging and discharging of the battery, the small metal zinc ions rapidly expanded in volume during the continuous plating process. These concentrated metal protrusions adhere to the hole in the center of the battery separator, causing a short circuit between the anode and cathode. 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: Is the power lithium ion battery safe? Will it pollute the environment?