Next-generation lithium-ion batteries made with iron oxide nanoparticles could extend the driving distance of electric cars.
Battery-powered cars offer many environmental benefits, but a car with a full tank of gasoline can travel further. By improving the energy capacity of lithium-ion batteries, a new electrode made from iron oxide nanoparticles could help electric vehicles to cover greater distances. Developed by Zhaolin Liu of the A*STAR Institute of Materials Research and Engineering, Singapore, and Aishui Yu of Fudan University, China, and co-workers, the electrode material is inexpensive, suitable for large-scale manufacturing and can store higher charge densities than the conventional electrodes used in lithium-ion batteries.
Electric vehicles could travel further when powered by a higher-capacity lithium-ion battery made with inexpensive iron oxide nanoparticles
During the 1st round of charging and discharging, the anodes showed an efficiency of 75–78%, depending on the current density. After ten more cycles, however, the efficiency improved to 98%, almost as high as commercial li-ion batteries.