400 kilometers of battery life after ten minutes of charging, the new battery is expected to 'cure' the range anxiety

Are you still worried about running out of electricity before electric cars find a charging station? On January 18, a new study published by 'Nature-Energy' may be able to relieve the above-mentioned 'anxiety' of the electric vehicle range. In the new study, engineers at Pennsylvania State University in the United States are working on a lithium iron phosphate battery that can be charged for 10 minutes and has a cruising range of up to 250 miles (about 402 kilometers). The battery can support a driving range of 2 million miles during its service life. 'We have developed a very sophisticated battery for mass-market electric vehicles, and its cost is comparable to that of a diesel car.' said Wang Chaoyang, a professor at Pennsylvania State University, so that electric car owners will no longer have the anxiety of driving range, and this battery The price is low and the car owner can afford it. New research points out that the key to this kind of battery's long service life and fast charging is that it can be quickly heated to 140 degrees Fahrenheit for charging and discharging, and then cooled when the battery is not working. 'Fast charging allows us to reduce the size of the battery without worrying about the mileage.' Wang Chaoyang said. The rapid heating of the battery uses the self-heating method previously developed by the Wang Chaoyang team, that is, the battery uses a thin nickel foil material with one end connected to the negative electrode and the other end extending to the outside of the battery to form the third terminal. Once the electrons flow, the nickel foil can be heated quickly by resistance heating and heat the inside of the battery. When the internal temperature of the battery reaches 140 degrees Fahrenheit, the switch will be turned on and the battery will be charged or discharged quickly. According to the researchers, this battery is manufactured entirely using existing technology and innovative methods. The battery is light in weight, small in size, and low in cost. The cathode uses thermally stable lithium iron phosphate, which does not contain any expensive key materials. Because of the self-heating effect of lithium, researchers do not have to worry about the danger of uneven deposition of lithium on the battery anode. The anode is made of large particles of graphite, which is also a safe, lightweight and inexpensive material. A small battery has a lot of energy. According to Wang Chaoyang, the battery can generate 40 kilowatt-hours and 300 kilowatts of electricity when heated. An electric car equipped with this battery can accelerate from 0 mph to 60 mph in 3 seconds.