We’d all love an electric car (or an airplane) that goes more than 100 miles flashing a “Low Battery” indicator. Researchers at the Toyota Research Institute of North America (TRINA) are working on a divergent approach to achieving greater range and smaller battery sizes by using magnesium as an active ingredient. In a bit of serendipitous synergy, Toyota principal scientist and chemical engineer Rana Mahtadi heard fellow researchers discussing development of an electrolyte for a practical magnesium battery. She was researching hydrogen storage materials and their application to fuel cell technology at the time, and realized the two lines of research intersected nicely. Toyota explains that “Magnesium metal has long been theorized as a much safer and more energy-dense alternative to current lithium battery technology. Lithium metal, in its natural state, is unstable and can ignite when exposed to air. In order to make lithium metal safe for batteries, ions are taken from the lithium metal and embedded into graphite …