Credit: Image courtesy of Lawrence Berkeley National Laboratory
Magnesium (Mg)-based batteries that are safer and more powerful could be the next generation energy-storage device. One hurdle to overcome is “speeding up” the rate that Mg ions move in solids. Here, scientists have developed design rules that allow Mg ions to move faster. The illustration shows the location and diffusion pathway for Mg ions in a selenium and scandium (Sc)-based crystal (orange). The probable location (blue) of magnesium was calculated for high temperatures.