Iron triflouride could make better electric-car batteries

Adding oxygen and cobalt to the cathode prevents lithium from breaking chemical bondsResearchers at the University of Maryland, in conjunction with Brookhaven National Laboratory have developed a new battery cathode material that they say could triple the energy density of lithium-ion batteries. The new material is an engineered variety of iron trifluoride, a well-known material that has had problems with rechargeability and low...