Tesla ModelS is the new darling of the electric car industry, but recently it has experienced three consecutive fires (including 60 kWh and 85 kWh battery versions). The detailed cause of the fire is still under investigation.

　　Thanks to the application of new technology and lightweight materials, the battery pack in ModelS allows it to accelerate from 0-60 mph in only 4.4 seconds. Also due to the active nature of these materials, the lithium battery in the car needs to have complete protection measures. The lithium battery pack in the car weighs 500 pounds. It is located on the chassis of the car, the same width as the wheelbase and slightly shorter than the wheelbase. The actual physical dimensions of the battery pack are: 2.7 meters in length, 1.5 meters in width, and 0.1 meters to 0.18 meters in thickness. The thicker part of 0.18 meters is caused by the superposition of two battery modules. This physical size refers to the overall size of the battery pack, including the top and bottom, left and right, front and rear wrapping panels. The structure of this battery pack is a universal design, in addition to the 18650 battery, other qualified batteries can also be installed. In addition, the battery pack adopts a sealed design, isolated from the air, and most of the materials used are aluminum or aluminum alloy. It can be said that the battery is not only an energy center, but also a part of the ModelS chassis. Its sturdy shell can support the vehicle very well.

　　But even so, it still caught fire, which is why researchers need to speed up the research and development process of new generation electric vehicle battery technology.

　　This summer, APRA-E, the Advanced Research Projects Agency of the U.S. Department of Energy, invested US$36 million to help researchers develop next-generation battery designs and lay a solid foundation. Including 22 technical projects, without exception, the goal is to make electric vehicles more efficient and lower cost.